Adware.Gexin.4940

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) pa####.wos####.cn:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) un####.wos####.cn:8061
TCP(HTTP/1.1) 2####.107.1.1:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) unipa####.wos####.cn:8080
TCP(HTTP/1.1) se####.wos####.cn:81
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) poll-di####.cooteks####.com:80
TCP(HTTP/1.1) unip####.wos####.cn:8080
TCP(HTTP/1.1) api.w####.cn:80
TCP(HTTP/1.1) et2-na6####.wagbr####.ali####.####.com:80
TCP(TLS/1.0) l####.s####.com.cn:443
TCP(TLS/1.0) api.id####.cn:443
TCP(TLS/1.0) api.w####.com:443
TCP(TLS/1.0) o####.w####.cn:443
TCP(TLS/1.0) pass####.w####.cn:443
TCP(TLS/1.0) app-ro####.leanc####.cn:443
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) cap####.appl####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226
TCP p####.wos####.cn:8064
TCP p####.wos####.cn:18091

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
a####.man.aliy####.com
a####.u####.com
and####.b####.qq.com
api.id####.cn
api.w####.cn
api.w####.com
app-ro####.leanc####.cn
c####.g####.ig####.com
c-h####.g####.com
cap####.w####.com
l####.s####.com.cn
log.u####.com
o####.w####.cn
p####.wos####.cn
pa####.wos####.cn
pass####.w####.cn
poll-di####.cooteks####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
se####.wos####.cn
un####.wos####.cn
unip####.wos####.cn
unipa####.wos####.cn

HTTP GET requests:

api.w####.cn/2/client/common_config?appkey=####&packagename=####&key_has...
et2-na6####.wagbr####.ali####.####.com/bar/get/4e6efeb5527015155900002f/...
poll-di####.cooteks####.com/dualsim/appkey_dsi?appkey=####&host=####&man...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iGj879
unip####.wos####.cn:8080/upload/1537525238405.zip

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async?aid=####
a####.u####.com/app_logs
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
pa####.wos####.cn/secmanager/service/security
sdk.o####.p####.####.com/api.php?format=####&t=####
se####.wos####.cn:81/unipay/precheck?secrettype=####&sdktime=####&urlsig...
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####
un####.wos####.cn:8061/logserver/unipay/unipayLogin
unipa####.wos####.cn:8080/sdk_upgrade_server/report.action
unipa####.wos####.cn:8080/sdk_upgrade_server/sdkupdate.action

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/4.6.0L2111B1010_resource_400.apk
/data/data/####/AV_CLOUD_API_VERSION_KEY_ZONE.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/accountsdk_2_arrow_right_gray.png
/data/data/####/accountsdk_2_btn_grey.9.png
/data/data/####/accountsdk_2_btn_modify_uinfo.png
/data/data/####/accountsdk_2_checkbox_set.png
/data/data/####/accountsdk_2_checkbox_unset.png
/data/data/####/accountsdk_2_float_bg.png
/data/data/####/accountsdk_2_float_bg_expand_lr.9.png
/data/data/####/accountsdk_2_float_bg_expand_rl.9.png
/data/data/####/accountsdk_2_float_bg_expanded.png
/data/data/####/accountsdk_2_float_bg_expanded_lo.png
/data/data/####/accountsdk_2_float_bg_lo.png
/data/data/####/accountsdk_2_float_btn_account.png
/data/data/####/accountsdk_2_float_btn_account_pressed.png
/data/data/####/accountsdk_2_float_btn_activity.png
/data/data/####/accountsdk_2_float_btn_activity_pressed.png
/data/data/####/accountsdk_2_float_btn_point.png
/data/data/####/accountsdk_2_float_btn_point_pressed.png
/data/data/####/accountsdk_2_float_btn_recharge.png
/data/data/####/accountsdk_2_float_btn_recharge_pressed.png
/data/data/####/accountsdk_2_float_logo.png
/data/data/####/accountsdk_2_green_radio.png
/data/data/####/accountsdk_2_green_radio_checked.png
/data/data/####/accountsdk_2_icon_fail.png
/data/data/####/accountsdk_2_pointbar.png
/data/data/####/accountsdk_2_portrait_default.png
/data/data/####/accountsdk_2_uicom_logo.png
/data/data/####/accountsdk_2_wostore_logo.png
/data/data/####/alipay_pay.png
/data/data/####/app_setting.xml
/data/data/####/app_update_dialog_bg.png
/data/data/####/app_update_dialog_btn.png
/data/data/####/app_update_dialog_close.png
/data/data/####/app_update_dialog_progress.png
/data/data/####/app_update_dialog_title.png
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.appshare.android.app.column.apk
/data/data/####/com.appshare.android.app.column.scrc
/data/data/####/com.appshare.android.app.leancloud.apk
/data/data/####/com.appshare.android.app.leancloud.scrc
/data/data/####/com.appshare.android.app.login.apk
/data/data/####/com.appshare.android.app.login.scrc
/data/data/####/com.appshare.android.app.main.apk
/data/data/####/com.appshare.android.app.main.scrc
/data/data/####/com.appshare.android.app.mine.apk
/data/data/####/com.appshare.android.app.mine.scrc
/data/data/####/com.appshare.android.app.pay.apk
/data/data/####/com.appshare.android.app.pay.scrc
/data/data/####/com.appshare.android.app.square.apk
/data/data/####/com.appshare.android.app.square.scrc
/data/data/####/com.appshare.android.app.story.apk
/data/data/####/com.appshare.android.app.story.scrc
/data/data/####/com.appshare.android.app.welcome.apk
/data/data/####/com.appshare.android.app.welcome.scrc
/data/data/####/com.appshare.android.lib.style.apk
/data/data/####/com.appshare.android.lib.style.scrc
/data/data/####/com.appshare.android.lib.utils.apk
/data/data/####/com.appshare.android.lib.utils.scrc
/data/data/####/com.avos.avoscloud.RequestStatisticsUtil.data.xml
/data/data/####/com.avos.avoscloud.approuter.iKG9v5Bnh6R3m6bvfN...sz.xml
/data/data/####/com_sina_weibo_sdk.xml
/data/data/####/crashrecord.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/default_banner.png
/data/data/####/dot_black.png
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/green_dot.png
/data/data/####/gx_sp.xml
/data/data/####/httpdns_config_cache.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jfsc.png
/data/data/####/libjiagu.so
/data/data/####/loading1.png
/data/data/####/local.jar
/data/data/####/local_crash_lock
/data/data/####/login
/data/data/####/month_record_list.png
/data/data/####/month_vip_bojin.png
/data/data/####/month_vip_huangjin.png
/data/data/####/month_vip_icon.png
/data/data/####/month_vip_putong.png
/data/data/####/msg_store.xml
/data/data/####/msg_store.xml.bak
/data/data/####/multidex.version.xml
/data/data/####/mxres3.dat
/data/data/####/myhelp.png
/data/data/####/myhongbao.png
/data/data/####/myjifen.png
/data/data/####/myltbl.png
/data/data/####/myltjf.png
/data/data/####/mywobi.png
/data/data/####/mywoquan.png
/data/data/####/otherpay_back.png
/data/data/####/privilege_dot.png
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qq_pay.png
/data/data/####/quickpayHelp1.png
/data/data/####/quickpayHelp2.png
/data/data/####/quickpayHelp3.png
/data/data/####/run.pid
/data/data/####/sdk_load_info.xml
/data/data/####/sdkclasses.dex
/data/data/####/sdkclasses.dve
/data/data/####/sdkclasses.jar
/data/data/####/security_info
/data/data/####/small.app-modifies.xml
/data/data/####/small.app-versions.xml
/data/data/####/small.xml
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/triangle_down.png
/data/data/####/triangle_up.png
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak (deleted)
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/unicom_adv_title.png
/data/data/####/unicom_alipay.png
/data/data/####/unicom_allright.png
/data/data/####/unicom_back.png
/data/data/####/unicom_bankcard.png
/data/data/####/unicom_boxbg.png
/data/data/####/unicom_btn_back.png
/data/data/####/unicom_btn_close.png
/data/data/####/unicom_btn_eyeoff.png
/data/data/####/unicom_btn_eyeon.png
/data/data/####/unicom_btn_refresh.png
/data/data/####/unicom_btn_usercenter.png
/data/data/####/unicom_btn_x.png
/data/data/####/unicom_chongzhicard.png
/data/data/####/unicom_circlerect_bg.png
/data/data/####/unicom_cl.xml
/data/data/####/unicom_classez.jar
/data/data/####/unicom_close.png
/data/data/####/unicom_close_new_normal.png
/data/data/####/unicom_close_new_press.png
/data/data/####/unicom_complete.png
/data/data/####/unicom_gift.png
/data/data/####/unicom_gou.png
/data/data/####/unicom_hot.png
/data/data/####/unicom_hotline.png
/data/data/####/unicom_img_card.png
/data/data/####/unicom_img_card2.png
/data/data/####/unicom_inputbox.png
/data/data/####/unicom_jfpay_baner.jpg
/data/data/####/unicom_jfpay_rule.jpg
/data/data/####/unicom_keyboard_clear.png
/data/data/####/unicom_light_boxbg.png
/data/data/####/unicom_modify.png
/data/data/####/unicom_progress_1.png
/data/data/####/unicom_progress_2.png
/data/data/####/unicom_progress_3.png
/data/data/####/unicom_pulldown.png
/data/data/####/unicom_qq.png
/data/data/####/unicom_rect_green.png
/data/data/####/unicom_red_circle.png
/data/data/####/unicom_resource.dat
/data/data/####/unicom_separate_line.png
/data/data/####/unicom_smallrightbar.png
/data/data/####/unicom_tanhao.png
/data/data/####/unicom_tuijian.png
/data/data/####/unicom_weixin_.png
/data/data/####/unicom_wobi.png
/data/data/####/unicom_wobi_big.png
/data/data/####/unicom_wopay.png
/data/data/####/update.zip
/data/data/####/user_id.xml
/data/data/####/user_info.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/wechat_pay.png
/data/data/####/weibo_sdk_aid1
/data/data/####/wobi_pay2.png
/data/data/####/wostore_progress.png
/data/data/####/wostore_welcome.png
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/UserID.dat
/data/media/####/addata22.dat
/data/media/####/app.db
/data/media/####/com.appshare.android.ilisten.bin
/data/media/####/com.appshare.android.ilisten.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/data0.dat
/data/media/####/data1.dat
/data/media/####/data111.dat
/data/media/####/dualsim.dat
/data/media/####/log_test9.2.txt
/data/media/####/sdata21.dat
/data/media/####/sutdt.dat
/data/media/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.log
/data/media/####/update_1542266068040.dat

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getuipush.MyPushService 25806 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
netstat -apn
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getuipush.MyPushService 25806 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu
me_unipay
realm-jni
weibosdkcore

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
DESede-CBC-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
DESede-CBC-NoPadding
RSA-ECB-PKCS1Padding

Uses special library to hide executable bytecode.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about APN settings.

Gets information about installed apps.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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