Adware.Gexin.9273

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) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) st####.msy####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) oc.u####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) l####.cc:80
TCP(TLS/1.0) m.msy####.com:443
TCP(TLS/1.0) st####.msy####.com:443
TCP(TLS/1.0) res####.a####.com:443

DNS requests:

a####.b####.qq.com
a####.u####.com
aexcep####.b####.qq.com
and####.b####.qq.com
h5.msy####.com
l####.cc
l####.tbs.qq.com
m.msy####.com
oc.u####.com
res####.a####.com
sdk.o####.p####.####.com
st####.msy####.com

HTTP GET requests:

st####.msy####.com/images/mobile/front/project/caicaile@3x.png
st####.msy####.com/images/mobile/front/project/licai@3x.png
st####.msy####.com/images/mobile/front/project/qiandai@3x.png

HTTP POST requests:

a####.u####.com/app_logs
aexcep####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
l####.cc/i/sdk/install
l####.tbs.qq.com/ajax?c=####&k=####
oc.u####.com/check_config_update
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/076a1dc26520fa61c644cdd775727c7c.0.tmp
/data/data/####/076a1dc26520fa61c644cdd775727c7c.1.tmp
/data/data/####/15595bc03f049d16d019cb41902ccfcd.0.tmp
/data/data/####/15595bc03f049d16d019cb41902ccfcd.1.tmp
/data/data/####/1d2b904cbeadfb72ed9546111a231c85.0
/data/data/####/35f1075afcc2ce2f71ba36dddf673dc6.0.tmp
/data/data/####/35f1075afcc2ce2f71ba36dddf673dc6.1.tmp
/data/data/####/56aa70e86bc6da0235232df9eb857158.0.tmp
/data/data/####/56aa70e86bc6da0235232df9eb857158.1.tmp
/data/data/####/589aa0e25da7ded412908c0c5d109fe3.0.tmp
/data/data/####/589aa0e25da7ded412908c0c5d109fe3.1.tmp
/data/data/####/695d20afe11af228b2b015543695d918.0.tmp
/data/data/####/695d20afe11af228b2b015543695d918.1.tmp
/data/data/####/9d933df77b1d11c6978b187b8726a0aa.0.tmp
/data/data/####/9d933df77b1d11c6978b187b8726a0aa.1.tmp
/data/data/####/DB_MSYD
/data/data/####/DB_MSYD-journal
/data/data/####/KEY_IS_XD_OPEN.xml
/data/data/####/LKME_Server_Request_Queue.xml
/data/data/####/MultiDex.lock
/data/data/####/PREFERENCES_DEVICE.xml
/data/data/####/PREFERENCES_LockTimeStore.xml
/data/data/####/PreferencesGuideUtils.xml
/data/data/####/StaticConfig.xml
/data/data/####/b2d39222ba7b11c9cbc7f619098b677f.0.tmp
/data/data/####/b2d39222ba7b11c9cbc7f619098b677f.1.tmp
/data/data/####/be9d22ef-6549-49ae-83e9-9e48f9c57e93.jpg
/data/data/####/bugly_db_legu-journal
/data/data/####/core_info
/data/data/####/eedc4a98fc280651e675c943aeade990.0.tmp
/data/data/####/eedc4a98fc280651e675c943aeade990.1.tmp
/data/data/####/f131355e8752346909bed39ce8967e8d.0.tmp
/data/data/####/f131355e8752346909bed39ce8967e8d.1.tmp
/data/data/####/f8df473e1c3560bef8fc2ab56258f3b8.0.tmp
/data/data/####/f8df473e1c3560bef8fc2ab56258f3b8.1.tmp
/data/data/####/fad97c254efd9bcf1dfb533eb084478c.0.tmp
/data/data/####/fad97c254efd9bcf1dfb533eb084478c.1.tmp
/data/data/####/getui_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/k.store
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.5.so
/data/data/####/libufix.so
/data/data/####/linkedme_referral_shared_pref.xml
/data/data/####/loadimagesp.xml
/data/data/####/local_crash_lock
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/mix.dex
/data/data/####/mobclick_agent_online_setting_com.msyd.client.xml
/data/data/####/msyd.db
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pref.xml
/data/data/####/security_info
/data/data/####/sp_active_dialog.xml
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/media/####/.lm_device_id
/data/media/####/1551267831106.db
/data/media/####/alsn20170807.db
/data/media/####/alsn20170807.db-journal
/data/media/####/tbslog.txt

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.5.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.product.cpu.abi
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime

Loads the following dynamic libraries:

Bugly
getuiext2
libnfix
libshella-2.9.0.5
libufix
msyd
nfix
pl_droidsonroids_gif
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding
RSA-ECB-NoPadding
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

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.).

Displays its own windows over windows of other apps.

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