Adware.Gexin.9771

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) m.d####.mob.com:80
TCP(HTTP/1.1) d####.d####.mob.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) www.tx####.com:80
TCP(HTTP/1.1) c.d####.mob.com:80
TCP(HTTP/1.1) dl.tx####.com:80
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) i####.tx####.com:7885
TCP(TLS/1.0) api.map.b####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
and####.b####.qq.com
api.map.b####.com
api.s####.mob.com
c####.g####.ig####.com
c-h####.g####.com
c.d####.mob.com
c.sz.gt.####.com
d####.d####.mob.com
dl.tx####.com
i####.tx####.com
m.d####.mob.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.tx####.com

HTTP GET requests:

dl.tx####.com/cdn.txt
i####.tx####.com:7885/apk_guanfang.html
m.d####.mob.com/cconf?appkey=####&plat=####&apppkg=####&appver=####&netw...
t####.c####.q####.####.com/tdata_SzD730
t####.c####.q####.####.com/tdata_ZCi456
ti####.c####.l####.####.com/config/hz-hzv3.conf
www.tx####.com/ad/kaiping4.png
www.tx####.com/ad/txy_ad_info.txt

HTTP POST requests:

a####.exc.mob.com/errconf
api.s####.mob.com/conf5
api.s####.mob.com/conn
api.s####.mob.com/data2
api.s####.mob.com/log4
api.s####.mob.com/snsconf
c-h####.g####.com/api.php?format=####&t=####
c.d####.mob.com/cdata
d####.d####.mob.com/dinfo
d####.d####.mob.com/dsign
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrecord (deleted)
/data/data/####/.mrlock
/data/data/####/.statistics
/data/data/####/1004
/data/data/####/5d52382dd6f6c76daa1c61dd2583cab78d5c0d9fa523188....0.tmp
/data/data/####/94104767bb54e1a85712d465321f5f6b6ea5e7c71d3ff35....0.tmp
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/a98d281186a1cd4c5d1c2aa652a3698328645af64011b91....0.tmp
/data/data/####/authStatus_com.txy.anywhere.xml
/data/data/####/authStatus_com.txy.anywhere;pushservice.xml
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/crashrecord.xml
/data/data/####/gdaemon_20161017
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu-1714949311.so
/data/data/####/local_crash_lock
/data/data/####/mob_commons_1.xml
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/mobclick_agent_cached_com.txy.anywhere333
/data/data/####/multidex.version.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/share_sdk_1.xml
/data/data/####/shared_pref.xml
/data/data/####/sharesdk.db
/data/data/####/sharesdk.db-journal
/data/data/####/tdata_SzD730
/data/data/####/tdata_SzD730.jar
/data/data/####/tdata_ZCi456
/data/data/####/tdata_ZCi456.jar
/data/data/####/umeng_general_config.xml
/data/media/####/.al
/data/media/####/.ccLock
/data/media/####/.ccc
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.dh
/data/media/####/.dh-journal
/data/media/####/.dhlock
/data/media/####/.dic_lock
/data/media/####/.dk
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nulal
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.plst
/data/media/####/.rc_lock
/data/media/####/.usLock
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.txy.anywhere.db
/data/media/####/tdata_SzD730
/data/media/####/tdata_ZCi456
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop androVM.vbox_dpi
/system/bin/sh -c getprop gsm.sim.state
/system/bin/sh -c getprop gsm.sim.state2
/system/bin/sh -c getprop qemu.sf.fake_camera
/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.debuggable
/system/bin/sh -c getprop ro.genymotion.version
/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.secure
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24635 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1714949311.so
getprop androVM.vbox_dpi
getprop gsm.sim.state
getprop gsm.sim.state2
getprop qemu.sf.fake_camera
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.debuggable
getprop ro.genymotion.version
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.secure
getprop ro.vivo.os.build.display.id
grep -E -v root|shell|system
logcat -d -v threadtime
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24635 300 0
top -d 0 -n 1

Loads the following dynamic libraries:

BaiduMapSDK_base_v4_3_1
Bugly
getuiext2
libjiagu-1714949311
neh
txysec

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
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.

Gets information about location.

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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