Adware.Gexin.9295

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) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) api.xiao####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 47.93.1####.183:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) 1####.217.20.110:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
a.appj####.com
api.map.b####.com
api.xiao####.com
c####.g####.ig####.com
c-h####.g####.com
c.appj####.com
loc.map.b####.com
o####.map.b####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

api.xiao####.com/api/appInit/getInitParam?requestTime=####&md5String=###...
api.xiao####.com/api/icar/n/common/ads?requestTime=####&md5String=####&t...
api.xiao####.com/api/icar/n/model/queryCarModelsByArea?userDefined=####&...
api.xiao####.com/attachment/19307792b685433db21549439b162ac0_chexingxiao...
api.xiao####.com/attachment/415dbe49512245599694164d61cc5ec4_5.png
api.xiao####.com/attachment/9f5f1a4cb35f4a399f2e49b4b67cc9f2_chexingxiao...
api.xiao####.com/attachment/b9cbf25e7cb544b1b848b0d31b742bab_gongmuhaiba...
api.xiao####.com/attachment/c00105fb0fe34d838337a7dc81c38587_banner.jpg
api.xiao####.com/attachment/e4ea955f34bd465696dd35a88d1ea824_5.png
t####.c####.q####.####.com/tdata_JNg986
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_nxn539
t####.c####.q####.####.com/tdata_zzW503
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

a.appj####.com/jiagu/check/upgrade
api.xiao####.com/api/icar/n/versions?requestTime=####&md5String=####&tok...
c-h####.g####.com/api.php?format=####&t=####
c.appj####.com/ad/splash/stats.html
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/0ec08211668e58e854468121f649ec50.0.tmp
/data/data/####/0ec08211668e58e854468121f649ec50.1.tmp
/data/data/####/53bfa42f2758e4b8add59f26e1776ac0a3ee78b63df94dd....0.tmp
/data/data/####/a1a74a1cd921dede56de0cc5cb95c52e527bbe181d92d54....0.tmp
/data/data/####/ad_show_time.xml
/data/data/####/authStatus_com.xiaoiche.app.icar;remote.xml
/data/data/####/b963e4b0ff36afb493754df6c0801e40.0.tmp
/data/data/####/b963e4b0ff36afb493754df6c0801e40.1.tmp
/data/data/####/de9584579755c2f644d9e454eef41757f4ef527dd9553b1....0.tmp
/data/data/####/ea7d9e7ba1e3bdc2c32b056072cc4292ce4335067607dfd....0.tmp
/data/data/####/fac9a53410bc7e92e7f7ada93159c521bb49ff816e1fea1....0.tmp
/data/data/####/fb0cd80948ad88b29c31335cbd116dcc.0.tmp
/data/data/####/fb0cd80948ad88b29c31335cbd116dcc.1.tmp
/data/data/####/fd446370e8576935e0985c7d4f20869e4a5045044a9ab4c....0.tmp
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/iCarDb.db-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu.so
/data/data/####/multidex.version.xml
/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/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/tdata_JNg986
/data/data/####/tdata_JNg986.jar
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_nxn539
/data/data/####/tdata_nxn539.jar
/data/data/####/tdata_zzW503
/data/data/####/tdata_zzW503.jar
/data/media/####/.cuid2
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.xiaoiche.app.icar.bin
/data/media/####/com.xiaoiche.app.icar.db
/data/media/####/conlts.dat
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_JNg986
/data/media/####/tdata_MkX219
/data/media/####/tdata_nxn539
/data/media/####/tdata_zzW503
/data/media/####/test.log
/data/media/####/xiaoiche.apk
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/com.xiaoiche.app.lib.util.getui.GetuiPushService 25035 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so

Loads the following dynamic libraries:

getuiext2
libjiagu
locSDK7a

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding

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.

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