Adware.Gexin.22257

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) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(TLS/1.0) instant####.google####.com:443
TCP(TLS/1.0) 2####.58.208.99:443
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.0) 1####.250.179.174:443
TCP(TLS/1.2) 2####.58.208.99:443
TCP(TLS/1.2) 1####.251.36.46:443
TCP(TLS/1.2) md####.google####.com:443
TCP(TLS/1.2) 1####.250.179.174:443
TCP cm-1####.g####.com:5226
TCP sdk.o####.t####.####.com:5224

DNS requests:

c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
instant####.google####.com
l####.tbs.qq.com
md####.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

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
sdk-ope####.g####.com/api/addr.htm

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
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/####/3cf57982766d
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/classes.dex
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/classes4.dex
/data/data/####/core_info
/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/####/libjiagu.so
/data/data/####/metrics_guid
/data/data/####/proc_auxv
/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/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/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/####/zyfish.db-journal
/data/media/####/000.html
/data/media/####/SM-T555_exception_1641172505241_4049.txt
/data/media/####/SM-T555_exception_1641172508848_2393.txt
/data/media/####/SM-T555_exception_1641172514310_2142.txt
/data/media/####/SM-T555_exception_1641172518265_182.txt
/data/media/####/SM-T555_exception_1641172523161_166.txt
/data/media/####/SM-T555_exception_1641172528435_4967.txt
/data/media/####/SM-T555_exception_1641172531903_4975.txt
/data/media/####/SM-T555_exception_1641172535219_3300.txt
/data/media/####/SM-T555_exception_1641172538576_788.txt
/data/media/####/SM-T555_exception_1641172541705_150.txt
/data/media/####/SM-T555_exception_1641172544952_2355.txt
/data/media/####/SM-T555_exception_1641172548147_4167.txt
/data/media/####/SM-T555_exception_1641172551864_3036.txt
/data/media/####/SM-T555_exception_1641172555285_4764.txt
/data/media/####/SM-T555_exception_1641172558174_3163.txt
/data/media/####/SM-T555_exception_1641172561179_4166.txt
/data/media/####/SM-T555_exception_1641172565288_2828.txt
/data/media/####/SM-T555_exception_1641172568361_53.txt
/data/media/####/SM-T555_exception_1641172571170_1736.txt
/data/media/####/SM-T555_exception_1641172573961_965.txt
/data/media/####/SM-T555_exception_1641172578698_4572.txt
/data/media/####/SM-T555_exception_1641172583458_779.txt
/data/media/####/SM-T555_exception_1641172588627_314.txt
/data/media/####/SM-T555_exception_1641172594174_4923.txt
/data/media/####/SM-T555_exception_1641172599903_579.txt
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.nbchat.zyfish.bin
/data/media/####/com.nbchat.zyfish.db
/data/media/####/gkt-journal
/data/media/####/gktper (deleted)
/data/media/####/tbslog.txt
/data/media/####/tdata_RBO669
/data/media/####/tdata_cpZ817
/data/media/####/tdata_uxr091
/data/media/####/test.log (deleted)
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

cat /proc/cpuinfo
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
getprop ro.product.cpu.abi
ip addr
mount

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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.

Requests the system alert window permission.

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