Adware.Gexin.22125

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) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) oc.u####.com:80
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.0) da.sys####.com:443
TCP(TLS/1.0) apiro####.sys####.com:443
TCP(TLS/1.0) www.google####.com:443
TCP(TLS/1.0) xiaoshi####.net:7443
TCP(TLS/1.0) 1####.250.179.206:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.2) 2####.58.208.99:443
TCP(TLS/1.2) 1####.250.179.174:443
TCP(TLS/1.2) www.google####.com:443
TCP sdk.o####.t####.####.net:5224
TCP cm-1####.g####.com:5225

DNS requests:

and####.b####.qq.com
and####.google####.com
android####.go####.com
apiro####.sys####.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
da.sys####.com
instant####.google####.com
oc.u####.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
www.google####.com
www.gst####.com
xiaoshi####.net

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_EDB102
cdn-sdk####.g####.com.####.com/tdata_RBO669
cdn-sdk####.g####.com.####.com/tdata_cpZ817
cdn-sdk####.g####.com.####.com/tdata_uxr091
d####.c####.l####.####.com/config/hzv9.conf
da.sys####.com:443/config/Android.conf?project=####
sdk-ope####.g####.com/api/addr.htm
xiaoshi####.net:7443/et/api/getToken.do?appid=####&appsecret=####&sign=#...

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
da.sys####.com:443/sa/?project=####
oc.u####.com/v2/check_config_update
oc.u####.com/v2/get_update_time
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/-15208329421979009110
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/README.MD
/data/data/####/UserLogin.xml
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/a2_00000.png
/data/data/####/a2_00001.png
/data/data/####/a2_00002.png
/data/data/####/a2_00003.png
/data/data/####/a2_00004.png
/data/data/####/a2_00005.png
/data/data/####/a2_00006.png
/data/data/####/a2_00007.png
/data/data/####/a2_00008.png
/data/data/####/a2_00009.png
/data/data/####/a2_00010.png
/data/data/####/a2_00011.png
/data/data/####/a2_00012.png
/data/data/####/a2_00013.png
/data/data/####/a2_00014.png
/data/data/####/a2_00015.png
/data/data/####/a2_00016.png
/data/data/####/a2_00017.png
/data/data/####/a2_00018.png
/data/data/####/af758e36e147
/data/data/####/bg_scan_border.png
/data/data/####/bugly_db_-journal
/data/data/####/classes.dex
/data/data/####/classes.dex;classes10.dex
/data/data/####/classes.dex;classes2.dex
/data/data/####/classes.dex;classes3.dex
/data/data/####/classes.dex;classes4.dex
/data/data/####/classes.dex;classes5.dex
/data/data/####/classes.dex;classes6.dex
/data/data/####/classes.dex;classes7.dex
/data/data/####/classes.dex;classes8.dex
/data/data/####/classes.dex;classes9.dex
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDa...ml.bak
/data/data/####/com.sensorsdata.analytics.android.sdk.SensorsDataAPI.xml
/data/data/####/com.systoon.menchengtoon-journal
/data/data/####/common_search.png
/data/data/####/common_selected_blue.png
/data/data/####/common_selected_circle_2x.png
/data/data/####/content_icon_forum_level.png
/data/data/####/content_icon_forum_main_bgg.webp
/data/data/####/content_icon_forum_main_create.png
/data/data/####/content_icon_forum_setting_bg.webp
/data/data/####/crashrecord.xml
/data/data/####/create_add.png
/data/data/####/create_card_big.png
/data/data/####/customization.xml
/data/data/####/dg_add_shortcut_icon.png
/data/data/####/efz_create_add.png
/data/data/####/efz_create_card_big.png
/data/data/####/efz_my_scene_select.png
/data/data/####/efz_user_normal.png
/data/data/####/efz_user_selected.png
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/ic_settings_add_address.png
/data/data/####/icon_common_add_blue.png
/data/data/####/icon_empty_group.png
/data/data/####/icon_feed_new_friend_exchange_enable.webp
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/local_crash_lock
/data/data/####/local_crash_lock (deleted)
/data/data/####/login_toon_bg_bjt.png
/data/data/####/logo_toon_144.png
/data/data/####/main.json
/data/data/####/metrics_guid
/data/data/####/mipush.xml
/data/data/####/mipush_extra.xml
/data/data/####/mobclick_agent_online_setting_com.systoon.menchengtoon.xml
/data/data/####/my_scene_select.png
/data/data/####/org_downbutton.png
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/push_pref.xml
/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/####/sensorsdata.xml
/data/data/####/take_picture_mark.png
/data/data/####/tdata_RBO669
/data/data/####/tdata_RBO669.dex
/data/data/####/tdata_RBO669.dex.flock (deleted)
/data/data/####/tdata_RBO669.jar
/data/data/####/tdata_cpZ817
/data/data/####/tdata_cpZ817.dex
/data/data/####/tdata_cpZ817.dex.flock (deleted)
/data/data/####/tdata_cpZ817.jar
/data/data/####/tdata_uxr091
/data/data/####/tdata_uxr091.dex
/data/data/####/tdata_uxr091.dex.flock (deleted)
/data/data/####/tdata_uxr091.jar
/data/data/####/tiny_data.data
/data/data/####/tiny_data.lock
/data/data/####/toon_user_data.xml
/data/data/####/tosignbutton.png
/data/data/####/user_normal.png
/data/data/####/user_selected.png
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.systoon.menchengtoon.bin
/data/media/####/com.systoon.menchengtoon.db
/data/media/####/gkt
/data/media/####/gkt-journal
/data/media/####/gktper (deleted)
/data/media/####/menchengtoon.mmap2
/data/media/####/menchengtoon_20220101.xlog
/data/media/####/tdata_RBO669
/data/media/####/tdata_cpZ817
/data/media/####/tdata_uxr091
/data/media/####/test.log (deleted)

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c type su
cat /proc/cpuinfo
getprop
ip addr
mount

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding
AES-GCM-NoPadding

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 APN settings.

Gets information about installed apps.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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