Adware.Gexin.18982

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) q####.c####.l####.####.com:80
TCP(HTTP/1.1) rp-na####.ron####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) cloud-s####.xia####.mobi:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) mtjso####.b####.com:443
TCP(TLS/1.0) dxp.b####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) s####.cn.ron####.com:443
TCP(TLS/1.0) c####.x####.com.####.com:443
TCP 1####.92.36.75:8619
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.ig####.com:5225
TCP cm-1####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
av1.x####.com
c####.x####.com
c####.x####.com
c-h####.g####.com
cdn-sdk####.g####.com
cloud-s####.xia####.mobi
cm-1####.ig####.com
cm-1####.ig####.com
dxp.b####.com
h####.b####.com
mtjso####.b####.com
nav.cn.ron####.com
s####.cn.ron####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_EDB102
cdn-sdk####.g####.com.####.com/tdata_SIq813
cdn-sdk####.g####.com.####.com/tdata_agG322
cdn-sdk####.g####.com.####.com/tdata_xEA084
q####.c####.l####.####.com/config/hz-hzv6.conf
q####.c####.l####.####.com/tdata_LRe817
sdk.o####.p####.####.com/api/addr.htm

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
cloud-s####.xia####.mobi/bus/appUpgrade/lastVersion
rp-na####.ron####.com/navipush.json
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/data/####/.jg.ic
/data/data/####/100456681b26
/data/data/####/1575479483430_2989
/data/data/####/1575479484888_2989
/data/data/####/1575479485133_2989
/data/data/####/1575479485452_2989
/data/data/####/1575479485749_2989
/data/data/####/1575479485851_2989
/data/data/####/1575479486558_3018
/data/data/####/1575479486713_3018
/data/data/####/1575479487163_3049
/data/data/####/1575479487244_3036
/data/data/####/1575479487384_3018
/data/data/####/1575479487475_3036
/data/data/####/1575479487499_3049
/data/data/####/1575479488886_3036
/data/data/####/1575479547195_2989
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/COUNTLY_STORE.xml
/data/data/####/FwLog.xml
/data/data/####/MultiDex.lock
/data/data/####/RongPush.xml
/data/data/####/RongPushAppConfig.xml
/data/data/####/Statistics.xml
/data/data/####/TDCloudSettingsConfigF1674381EC5F46A78C3B8126AB4B1AC9.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1575479491449
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/baidu_mtj_sdk_record.xml.bak
/data/data/####/gdaemon_20161017
/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/####/iv
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu-1363465213.so
/data/data/####/locale.config.xml
/data/data/####/mtj_autoTracker.js
/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/####/run.pid
/data/data/####/salt
/data/data/####/tdata_SIq813
/data/data/####/tdata_SIq813.jar
/data/data/####/tdata_agG322
/data/data/####/tdata_agG322.jar
/data/data/####/tdata_xEA084
/data/data/####/tdata_xEA084.jar
/data/data/####/tdid.xml
/data/data/####/trace_circle.data
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.timestamp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.xiaoban.school.bin
/data/media/####/com.xiaoban.school.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_SIq813
/data/media/####/tdata_agG322
/data/media/####/tdata_xEA084
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GTPushService 24797 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
getprop ro.build.display.id
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.miui.ui.version.name
getprop ro.smartisan.version
getprop ro.vivo.os.version
mount
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GTPushService 24797 300 0

Loads the following dynamic libraries:

RongIMLib
X86Bridge
crash_analysis
getuiext3
libjiagu-1363465213

Uses the following algorithms to encrypt data:

AES
AES-CBC-PKCS5Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES
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.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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