Adware.Gexin.4868

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) a####.u####.com:80
TCP(HTTP/1.1) api.c####.link####.cn:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) img.mifaqia####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) cn-hang####.oss####.aliyun####.com:80
TCP(HTTP/1.1) pub-####.qin####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(SSL/3.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) fp.fraudme####.cn:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) inter####.mifaqia####.com:443
TCP(TLS/1.0) 1####.194.69.100:443
TCP(TLS/1.0) res####.a####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
and####.b####.qq.com
api.c####.link####.cn
c####.g####.ig####.com
c-h####.g####.com
cn-hang####.oss####.aliyun####.com
fp.fraudme####.cn
img.mifaqia####.com
inter####.mifaqia####.com
l####.tbs.qq.com
log.u####.com
pub-####.qin####.com
res####.a####.com
s####.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

api.c####.link####.cn/info/verfiy_api_id?api_id=####&api_secret=####
cn-hang####.oss####.aliyun####.com/amap-api/comm/upload/CoordinateSoEnhe...
img.mifaqia####.com/img/deductible_coupon_bg.png?v=####
img.mifaqia####.com/img/download_huishou_bg.png
img.mifaqia####.com/img/download_vip_txt.png
img.mifaqia####.com/img/goToRaiseAmount.png
img.mifaqia####.com/img/hot_loan.png
img.mifaqia####.com/img/huishou.png
img.mifaqia####.com/img/index_banner.png
img.mifaqia####.com/img/index_banner.png?v=####
img.mifaqia####.com/img/index_maxnum_bg.png
img.mifaqia####.com/img/light_bulb.png
img.mifaqia####.com/img/statement.png
img.mifaqia####.com/img/vipBuy.png
img.mifaqia####.com/img/vip_ad.png
img.mifaqia####.com/img/vip_logo.png
img.mifaqia####.com/img/zzz_news.png
pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_vxj811

HTTP POST requests:

a####.u####.com/app_logs
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
l####.tbs.qq.com/ajax?c=####&v=####&k=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/1542101918502.log
/data/data/####/1d2b904cbeadfb72ed9546111a231c85.0
/data/data/####/50b18d383b37
/data/data/####/_nohttp_cookies_db.db
/data/data/####/_nohttp_cookies_db.db-journal
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/config.xml
/data/data/####/core_info
/data/data/####/crashrecord.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/debug.conf
/data/data/####/disk_entries_list_image_cache_500393094.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/f_000006
/data/data/####/f_000007
/data/data/####/f_000008
/data/data/####/f_000009
/data/data/####/f_00000a
/data/data/####/f_00000b
/data/data/####/f_00000c
/data/data/####/f_00000d
/data/data/####/fm_shared.xml
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/https_interface.mifaqianbao.com_0.localstorage-journal
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/k.store
/data/data/####/libjiagu-678968531.so
/data/data/####/libwgs2gcj.so
/data/data/####/local_crash_lock
/data/data/####/loctemp.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/native_record_lock
/data/data/####/pref.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/td_fm.jar
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_vxj811
/data/data/####/tdata_vxj811.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/1542101943055.db
/data/media/####/alsn20170807.db
/data/media/####/alsn20170807.db-journal
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.mfxyqb.borrowmoney.bin
/data/media/####/com.mfxyqb.borrowmoney.db
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/data/media/####/test.log

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>.push.PushBaseService 25293 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-678968531.so
getprop
getprop net.dns1
getprop ro.product.cpu.abi
ls -l /system/xbin/su
mount

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu-678968531
tongdun

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

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

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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