Adware.Gexin.23275

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) log####.ky####.com:80
TCP(HTTP/1.1) dm.ky####.net:80
TCP(HTTP/1.1) log####.ka####.com:80
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(HTTP/1.1) d####.d####.mob.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) sdk.c####.g####.####.cn:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.cn:80
TCP(TLS/1.0) m####.ky####.com:443
TCP(TLS/1.0) pla####.google####.com:443
TCP(TLS/1.0) www.google####.com:443
TCP(TLS/1.0) ssl.google-####.com:443
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.2) md####.google####.com:443
TCP(TLS/1.2) 1####.250.150.101:443
TCP(TLS/1.2) 64.2####.162.94:443
TCP cm-1####.g####.com:5224
UDP md####.google####.com:443
TCP sdk.o####.t####.####.com:5224
UDP www.google####.com:443

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
a####.u####.com
a.appj####.com
api.s####.mob.com
c-h####.g####.com
c.appj####.com
c.d####.mob.com
cdn-sdk####.g####.com
cm-1####.g####.com
cm-10####.g####.com
cm-10####.g####.com.####.8
d####.d####.mob.com
dm.ky####.net
log####.ka####.com
log####.ky####.com
m####.go####.com
m####.ky####.com
m.d####.mob.com
md####.google####.com
p####.google####.com
pla####.google####.com
sdk-ope####.g####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
ssl.google-####.com
www.google####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.cn/tdata_EDB102
cdn-sdk####.g####.com.####.cn/tdata_svG098
cdn-sdk####.g####.com.####.cn/tdata_zNZ623
d####.d####.mob.com/cconf?appkey=####&plat=####&apppkg=####&appver=####&...
dm.ky####.net/kyb.html?_t=####
log####.ka####.com/c.gif?ct=####&tid=####&uid=####&_t=####
log####.ky####.com/c.gif?ct=####&tid=####&uid=####&_t=####
m####.ky####.com:443/misc/version?id=####&_ip=####&_t=####
sdk.c####.g####.####.cn/config/hzv9.conf
sdk.o####.p####.####.com/api/addr.htm
ti####.c####.l####.####.com/tdata_BAI450

HTTP POST requests:

a####.exc.mob.com/cdata
a####.exc.mob.com/errconf
a####.u####.com/app_logs
a.appj####.com/jiagu/check/upgrade
api.s####.mob.com/conf5
api.s####.mob.com/conn
api.s####.mob.com/data2
api.s####.mob.com/snsconf
c-h####.g####.com/api.php?format=####&t=####
c.appj####.com/ad/splash/stats.html
m####.ky####.com:443/misc/push/add?
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/com.tal.kaoyan/####/.lock (deleted)
/data/com.tal.kaoyan/####/.mrecord (deleted)
/data/com.tal.kaoyan/####/ThrowalbeLog.db
/data/com.tal.kaoyan/####/future_db.db
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrecord (deleted)
/data/data/####/.mrlock
/data/data/####/.statistics
/data/data/####/539a46f08ff4
/data/data/####/CookiePrefsFile_httpcookie.xml
/data/data/####/Cookies
/data/data/####/Cookies-journal
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/account.xml
/data/data/####/ad_show_time.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/common_prefs.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/future_db.db-journal
/data/data/####/gaClientId
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/mob_commons_1.xml
/data/data/####/mob_commons_1.xml.bak
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/share_sdk_1.xml
/data/data/####/share_sdk_1.xml.bak
/data/data/####/sharesdk.db
/data/data/####/sharesdk.db-journal
/data/data/####/tdata_svG098
/data/data/####/tdata_svG098.dex
/data/data/####/tdata_svG098.dex.flock (deleted)
/data/data/####/tdata_svG098.jar
/data/data/####/tdata_zNZ623
/data/data/####/tdata_zNZ623.dex
/data/data/####/tdata_zNZ623.dex.flock (deleted)
/data/data/####/tdata_zNZ623.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/userdb0
/data/data/####/userdb0-journal
/data/data/####/zjbnews.db-journal
/data/media/####/.al
/data/media/####/.ccLock
/data/media/####/.ccc
/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.igexin.sdk.deviceId.db
/data/media/####/com.tal.kaoyan.bin
/data/media/####/com.tal.kaoyan.db
/data/media/####/gkt
/data/media/####/gkt-journal
/data/media/####/gktper (deleted)
/data/media/####/tdata_svG098
/data/media/####/tdata_zNZ623
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
cat /proc/self/cgroup
cat /sys/class/net/wlan0/address
chmod 755 /data/user/0/<Package>/.jiagu/libjiagu.so
grep -E -v root|shell|system
mount
sh
top -d 0 -n 1
top -d 0 -n 1 | grep -E -v 'root|shell|system' >> /storage/emulated/0/Mob/comm/dbs/.plst && echo "======================" >> /storage/emulated/0/Mob/comm/dbs/.plst

Loads the following dynamic libraries:

libgetuiext2
libjiagu
libkybencryptutil

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
RSA
RSA-ECB-NoPadding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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