Adware.Gexin.22803

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) pi####.qq.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) c####.g####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) gs.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) cgi.con####.qq.com:80
TCP(TLS/1.0) cgi.con####.qq.com:443
TCP(TLS/1.0) a####.hua.com:443
TCP(TLS/1.0) gs.g####.com:443
TCP(TLS/1.0) plb####.u####.com:443
TCP(TLS/1.0) www.google####.com:443
TCP(TLS/1.0) al####.u####.com:443
TCP(TLS/1.2) www.google####.com:443
TCP(TLS/1.2) 2####.58.212.238:443
TCP(TLS/1.2) 1####.250.187.227:443
TCP sdk.o####.t####.####.com:5224
TCP new####.me####.com:443
TCP cm-1####.g####.com:5224

DNS requests:

a####.hua.com
and####.google####.com
b####.g####.com
c####.g####.com
c####.g####.com
c-h####.g####.com
cdn-sdk####.g####.com
cgi.con####.qq.com
cm-1####.g####.com
gs.g####.com
m####.go####.com
new####.me####.com
p####.google####.com
pi####.qq.com
plb####.u####.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
u####.u####.com
www.google####.com

HTTP GET requests:

a####.hua.com:443/api/upgrade/?platform=####&sid=####&device_model=####&...
cdn-sdk####.g####.com.####.com/tdata_XYq933
cdn-sdk####.g####.com.####.com/tdata_pKN446
cdn-sdk####.g####.com.####.com/tdata_trp703
cdn-sdk####.g####.com.####.com/tdata_xEA084
cgi.con####.qq.com:443/qqconnectopen/openapi/policy_conf?status_os=####&...
d####.c####.l####.####.com/config/hzv9.conf
sdk.o####.p####.####.com/api/addr.htm

HTTP POST requests:

a####.hua.com:443/api/Default/GetProvCityArea
a####.hua.com:443/api/default/AccessRecordsV1
a####.hua.com:443/api/default/AppBusinessInitCfg
al####.u####.com:443/unify_logs
c####.g####.com/api.php?format=####&t=####
gs.g####.com/geshu/sdk/getBaseConfs
gs.g####.com/geshu/sdkStatistics/bd
gs.g####.com/geshu/sdkStatistics/ubi
gs.g####.com:443/encryption/key/fetch
pi####.qq.com/mstat/report/?index=####
plb####.u####.com:443/umpx_internal
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.cl
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.jgck
/data/data/####/20220225013000.v1.crash
/data/data/####/Alvin2.xml
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/Meiqia.xml
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/_nohttp_cache_db.db
/data/data/####/_nohttp_cache_db.db-journal
/data/data/####/_nohttp_cookies_db.db
/data/data/####/_nohttp_cookies_db.db-journal
/data/data/####/_umeng_common_config.xml
/data/data/####/classes.dex
/data/data/####/classes.dex;classes2.dex
/data/data/####/classes.dex;classes3.dex
/data/data/####/classes.dex;classes4.dex
/data/data/####/classes.oat
/data/data/####/classes.oat.flock (deleted)
/data/data/####/com.hua.order_preferences.xml
/data/data/####/com.hua.order_preferences.xml (deleted)
/data/data/####/com.hua.order_preferences.xml.bak
/data/data/####/com.hua.order_preferences.xml.bak (deleted)
/data/data/####/com.tencent.open.config.json.1102579750
/data/data/####/dW1weF9pbnRlcm5hbF8xNjQ1NzQxODM0MTc2;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f5ac862c7dc8aed6751495919096b131d247f27b755b137....0.tmp
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gtc.db-journal
/data/data/####/i==1.2.0&&7.3_1645741833480_envelope.log
/data/data/####/ias.db-journal
/data/data/####/ias_sp.xml
/data/data/####/ias_sp.xml (deleted)
/data/data/####/ias_sp.xml.bak
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu.so
/data/data/####/meiqia.db
/data/data/####/meiqia.db-journal
/data/data/####/metrics_guid
/data/data/####/mipush.xml
/data/data/####/mipush_extra.xml
/data/data/####/pri_tencent_analysis.db-journal
/data/data/####/pri_tencent_analysis.db_com.hua.order-journal
/data/data/####/pri_tencent_analysis.db_com.hua.order;pushservice-journal
/data/data/####/pri_tencent_analysis.db_com.hua.order;restart-journal
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushgdc.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/pushservice_umeng_common_config.xml
/data/data/####/restart_umeng_common_config.xml
/data/data/####/run.pid
/data/data/####/t==8.0.0&&7.3_1645741836327_envelope.log
/data/data/####/tdata_XYq933
/data/data/####/tdata_XYq933.dex
/data/data/####/tdata_XYq933.dex.flock (deleted)
/data/data/####/tdata_XYq933.jar
/data/data/####/tdata_pKN446
/data/data/####/tdata_pKN446.dex
/data/data/####/tdata_pKN446.dex.flock (deleted)
/data/data/####/tdata_pKN446.jar
/data/data/####/tdata_trp703
/data/data/####/tdata_trp703.dex
/data/data/####/tdata_trp703.dex.flock (deleted)
/data/data/####/tdata_trp703.jar
/data/data/####/tdata_xEA084
/data/data/####/tdata_xEA084.dex
/data/data/####/tdata_xEA084.dex.flock (deleted)
/data/data/####/tdata_xEA084.jar
/data/data/####/tencent_analysis.db-journal
/data/data/####/tencent_analysis.db_com.hua.order-journal
/data/data/####/tencent_analysis.db_com.hua.order;pushservice-journal
/data/data/####/tencent_analysis.db_com.hua.order;restart-journal
/data/data/####/tiny_data.data
/data/data/####/tiny_data.lock
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/media/####/2022-02-25.log.txt
/data/media/####/ANDROID.PERMISSION.TEST
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
logcat -c
logcat -d -v time
ls /
ls /sys/class/thermal

Loads the following dynamic libraries:

libgetuiext3
libjiagu

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
DES
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
DES

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

Gets information about network.

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

Gets information about installed apps.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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