Adware.Gexin.2215

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) reso####.msg.xi####.net:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) pin####.qq.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) regi####.xm####.xi####.com:443
TCP 47.74.1####.158:5222
TCP 4####.62.94.2:443

DNS requests:

and####.b####.qq.com
ha.tongche####.com
pi####.qq.com
pin####.qq.com
plb####.u####.com
regi####.xm####.xi####.com
reso####.msg.xi####.net
u####.u####.com

HTTP GET requests:

reso####.msg.xi####.net/gslb/?ver=####&type=####&conpt=####&uuid=####&li...

HTTP POST requests:

and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
pi####.qq.com/mstat/report/?index=####
pin####.qq.com/request

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/XMPushServiceConfig.xml
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/com.daojia.shop.daojiashop.BETA_VALUES.xml
/data/data/####/com.daojia.shop.daojiashop.mid.world.ro.xml
/data/data/####/com.daojia.shop.daojiashop;pushservice
/data/data/####/com.daojia.shop.daojiashop_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/i==1.2.0&&1.1.17_1536213717872_envelope.log
/data/data/####/i==1.2.0&&1.1.17_1536213734092_envelope.log
/data/data/####/info.xml
/data/data/####/legu_tencent_analysis.db_com.daojia.shop.daojia...ournal
/data/data/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-2.8.so
/data/data/####/local_crash_lock
/data/data/####/mipush.xml
/data/data/####/mipush.xml.bak (deleted)
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_extra.xml.bak
/data/data/####/mipush_region
/data/data/####/mipush_region.lock
/data/data/####/mix.dex
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/okgo.db-journal
/data/data/####/pref_registered_pkg_names.xml
/data/data/####/pri_legu_tencent_analysis.db_com.daojia.shop.da...ournal
/data/data/####/security_info
/data/data/####/tiny_data.data
/data/data/####/tiny_data.lock
/data/data/####/ua.db
/data/data/####/ua.db-journal
/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/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid2
/data/media/####/.mid.txt
/data/media/####/.umm.dat
/data/media/####/log.lock
/data/media/####/log1.txt
/data/media/####/sysid.dat

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
/system/bin/sh -c getprop
/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
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.8.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop
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.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
ls /sys/class/thermal

Loads the following dynamic libraries:

Bugly
MtaNativeCrash
libnfix
libshella-2.8
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-PKCS1PADDING

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

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

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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