Adware.Gexin.1747

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) o####.map.b####.com:80
TCP(HTTP/1.1) 2####.130.43.40:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) nav.cn.ron####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 1####.185.185.142:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) mr####.pc####.com.cn:443
TCP(TLS/1.0) l####.tbs.qq.com:443
TCP(TLS/1.0) api.w####.com:443
TCP(TLS/1.0) s####.cn.ron####.com:443
TCP c####.g####.ig####.com:5226
TCP 1####.92.22.180:8602
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
api.map.b####.com
api.w####.com
c####.g####.ig####.com
c-h####.g####.com
l####.tbs.qq.com
loc.map.b####.com
mr####.pc####.com.cn
mr####.pcon####.com.cn
nav.cn.ron####.com
o####.map.b####.com
plb####.u####.com
s####.cn.ron####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com

HTTP GET requests:

sni.c####.q####.####.net/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091

HTTP POST requests:

and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/sdk.php
nav.cn.ron####.com/navipush.json
o####.map.b####.com/offline_loc
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/COUNTLY_STORE.xml
/data/data/####/FwLog.xml
/data/data/####/HttpLogDB.db-journal
/data/data/####/MultiDex.lock
/data/data/####/RongPush.xml
/data/data/####/RongPushAppConfig.xml
/data/data/####/Statistics.xml
/data/data/####/authStatus_cn.com.pcauto.pocket;remote.xml
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/cdn.db-journal
/data/data/####/cn.com.pcauto.pocket.BETA_VALUES.xml
/data/data/####/cn.com.pcauto.pocket.BETA_VALUES.xml.bak
/data/data/####/cn.com.pcauto.pocket.BETA_VALUES.xml.bak (deleted)
/data/data/####/core_info
/data/data/####/crashrecord.xml
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/framwork.xml
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/httpdns.xml
/data/data/####/i==1.2.0&&1.7.2_1535122946028_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/mofang_data_analysis.db-journal
/data/data/####/mofang_data_analysis.xml
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/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/####/sys_log_1535122949502473.txt
/data/data/####/sys_log_1535122958195308.txt
/data/data/####/sys_log_1535122964943111.txt
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/weibo_sdk_aid1
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/805bcc988a9b824d63a4b2ec0d1c6fec.0.tmp
/data/media/####/805bcc988a9b824d63a4b2ec0d1c6fec.1.tmp
/data/media/####/8956d9ee1e29a75b267748d9aedd0245.0.tmp
/data/media/####/8956d9ee1e29a75b267748d9aedd0245.1.tmp
/data/media/####/9dae3819bf5377c739d927f3190be55a.0.tmp
/data/media/####/9dae3819bf5377c739d927f3190be55a.1.tmp
/data/media/####/app.db
/data/media/####/cn.com.pcauto.pocket.bin
/data/media/####/cn.com.pcauto.pocket.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/conlts.dat
/data/media/####/d968f27607acedff6db67173835a8b0b.0.tmp
/data/media/####/d968f27607acedff6db67173835a8b0b.1.tmp
/data/media/####/dc63849c46594e05ba4703dc7973425b.0.tmp
/data/media/####/dc63849c46594e05ba4703dc7973425b.1.tmp
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.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
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.module.getui.GeTuiPushService 24964 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.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.product.cpu.abi
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.module.getui.GeTuiPushService 24964 300 0

Loads the following dynamic libraries:

Bugly
RongIMLib
getuiext2
libnfix
libshella-2.9.0.2
libufix
locSDK7a
nfix
realm-jni
ufix
weibosdkcore

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

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

Gains access to information about APN settings.

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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