Adware.Gexin.3047

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/21d262f9-5925-4325-a5fe-aedcfefd0721
/data/data/####/306112fe-c7dc-45c4-8407-d5805cd807b9
/data/data/####/738472bb-5b49-46f9-b5b4-d4b005028cb7
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/XMPushServiceConfig.xml
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/allinance_datacache.xml
/data/data/####/app.xml
/data/data/####/appPackageNames_v2
/data/data/####/app_sp.sp
/data/data/####/app_sp.sp.bak
/data/data/####/benchmark_service.db
/data/data/####/benchmark_service.db-journal
/data/data/####/camera_file.xml
/data/data/####/charger_info.xml
/data/data/####/cloud_config.xml
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.ludashi.benchmark;pushcore
/data/data/####/com.ludashi.benchmark_com.ludashi.benchmark;mon...es.xml
/data/data/####/com.ludashi.benchmark_com.ludashi.benchmark_fra...es.xml
/data/data/####/com.ludashi.benchmark_preferences.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/dce14855-aa29-49b1-94a9-1e8e5fe56d73
/data/data/####/eg_policy.xml
/data/data/####/eguan.db
/data/data/####/eguan.db-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/finalcore.jar
/data/data/####/gdaemon_20161017
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&8.6.8.18.0919_1537905755814_envelope.log
/data/data/####/imei.xml
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_uncaughtexception_file
/data/data/####/libMyCore3.so
/data/data/####/libjiagu-1041983504.so
/data/data/####/locker
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/mipush.xml
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_region
/data/data/####/mipush_region.lock
/data/data/####/msg_box_white.xml
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.xml
/data/data/####/new_device_rcmd.xml
/data/data/####/news_sdk_location.xml
/data/data/####/news_sdk_status.xml
/data/data/####/newssdk_req_token.xml
/data/data/####/p_w_l.xml
/data/data/####/pref_registered_pkg_names.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/####/sdk_config.xml
/data/data/####/shared_pref_clear_sdk.xml
/data/data/####/sp_client_report_status.xml
/data/data/####/sp_hd.xml
/data/data/####/sp_replace_flag.sp
/data/data/####/sp_replace_flag.sp.bak
/data/data/####/sputil.sp
/data/data/####/sputil.sp.bak
/data/data/####/tb_session.xml
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_fyR930
/data/data/####/tdata_fyR930.jar
/data/data/####/timestamp
/data/data/####/toolbox_shared_pref.xml
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.push_deviceid
/data/media/####/.sfp
/data/media/####/.testf
/data/media/####/.umm.dat
/data/media/####/2018-09-25.log.txt
/data/media/####/7355a99116aa4f8698f117da24590556
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.ludashi.benchmark.bin
/data/media/####/com.ludashi.benchmark.db
/data/media/####/e34d85d482cb4072834e912df2da7fda
/data/media/####/eg.a
/data/media/####/log.lock
/data/media/####/log1.txt
/data/media/####/ludashi-benchmark-2018-09-25-20-02-35.log
/data/media/####/ludashi-monitorService-2018-09-25-20-02-40.log
/data/media/####/tdata_bca864
/data/media/####/tdata_fyR930
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
<Package Folder>/app_MyLibs/libMyCore3.so --dir=<Package Folder> --url=http://sjrank.ludashi.com/other/uninst.php?action=index&appver=155&mid=993148ab0d31996c6403a95370542cb5&channel=wangmeng4 --port=36442 --pname=benchmark:unin --daemon
<Package Folder>/files/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"umeng:582988138f4a9d129500017c","utdid":"W6qUHppWn2EDAGdzx1HPdqpK","sdkVersion":"221"} -I agoodm.m.taobao.com -O 80 -T -Z
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.pushserver.getui.GetuiPushService 25096 300 0
<Package Folder>/lib/libldsdaemon_2.so <Package Folder>/daemon.pid <Package>/.daemon.DaemonReceiver 0 /storage/emulated/0/Android/data/<Package>/files/LudashiErase <Package Folder>/ http://sjrank.ludashi.com/other/uninst.php?action=index&appver=155&mid=993148ab0d31996c6403a95370542cb5&channel=wangmeng4 /murl?os=Android 4.3.1&chanel=wangmeng4&source=new&vendor=<System Property>&mid=993148ab0d31996c6403a95370542cb5&type=uninstall_silent&modal=<System Property>&appver=155
chmod 500 <Package Folder>/files/DaemonServer
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1041983504.so
chmod 755 <Package Folder>/app_MyLibs/libMyCore3.so
getprop wifi.interface
grep 3465
ls /sys/class/thermal
ps
sh
sh -c <Package Folder>/lib/libldsdaemon_2.so <Package Folder>/daemon.pid <Package>/.daemon.DaemonReceiver 0 /storage/emulated/0/Android/data/<Package>/files/LudashiErase <Package Folder>/ http://sjrank.ludashi.com/other/uninst.php?action=index&appver=155&mid=993148ab0d31996c6403a95370542cb5&channel=wangmeng4 /murl?os=Android 4.3.1&chanel=wangmeng4&source=new&vendor=<System Property>&mid=993148ab0d31996c6403a95370542cb5&type=uninstall_silent&modal=<System Property>&appver=155

Loads the following dynamic libraries:

cpuinfo_x86
daemonproxy
erase_x86
getuiext3
jcore125
ldsBench_1
libjiagu-1041983504
tnet-3.1

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
DES-ECB-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding

Uses special library to hide executable bytecode.

Gains access to camera interface.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about installed applications.

Gains access to information about running applications.

Gains access to information about accounts (Google, Facebook, etc.) registered on the device.

Adds tasks to the system scheduler.

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