Adware.Gexin.20127

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) l####.tbs.qq.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) p####.google####.com:443
TCP(TLS/1.0) 1####.177.126.95:443
TCP(TLS/1.0) instant####.google####.com:443
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.0) qy-swa####.qi####.com:443
TCP(TLS/1.2) 1####.194.69.101:443
TCP(TLS/1.2) 1####.177.126.95:443
TCP(TLS/1.2) 1####.177.126.94:443
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.g####.com:5224

DNS requests:

and####.b####.qq.com
android####.go####.com
api.map.b####.com
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
cm-1####.g####.com
instant####.google####.com
l####.tbs.qq.com
linktow####.cd####.com
loc.map.b####.com
md####.google####.com
p####.google####.com
qy-swa####.qi####.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_CoH340
cdn-sdk####.g####.com.####.com/tdata_ViN250
cdn-sdk####.g####.com.####.com/tdata_pKX830
d####.c####.l####.####.com/config/hzv9.conf
sdk.o####.p####.####.com/api/addr.htm

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
loc.map.b####.com/sdk.php
sdk-ope####.g####.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/####/1004
/data/data/####/ANDROID_UTIL_HGH_CODE.xml
/data/data/####/ANDROID_UTIL_HGH_CODE.xml.bak
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/authStatus_cn.com.xizhi.linktown.c.xml
/data/data/####/authStatus_cn.com.xizhi.linktown.c;core.xml
/data/data/####/authStatus_cn.com.xizhi.linktown.c;pushservice.xml
/data/data/####/authStatus_cn.com.xizhi.linktown.c;remote.xml
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/cn.com.xizhi.linktown.c_preferences.xml
/data/data/####/com.qiyukf.analytics.xml
/data/data/####/core_info
/data/data/####/crashrecord.xml
/data/data/####/crashrecord.xml (deleted)
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/hyz.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/mac.xml
/data/data/####/metrics_guid
/data/data/####/native_record_lock
/data/data/####/native_record_lock (deleted)
/data/data/####/okgo.db-journal
/data/data/####/proc_auxv
/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/####/qiyu_save_ffe6600f40067cfc7e518d0cefe0b228.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tbs_download_stat.xml
/data/data/####/tbslock.txt
/data/data/####/tdata_CoH340
/data/data/####/tdata_CoH340.dex
/data/data/####/tdata_CoH340.dex.flock (deleted)
/data/data/####/tdata_CoH340.jar
/data/data/####/tdata_ViN250
/data/data/####/tdata_ViN250.dex
/data/data/####/tdata_ViN250.dex.flock (deleted)
/data/data/####/tdata_ViN250.jar
/data/data/####/tdata_pKX830
/data/data/####/tdata_pKX830.dex
/data/data/####/tdata_pKX830.dex.flock (deleted)
/data/data/####/tdata_pKX830.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/unicorn#cheese#
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/cn.com.xizhi.linktown.c.bin
/data/media/####/cn.com.xizhi.linktown.c.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/dist.zip
/data/media/####/tdata_CoH340
/data/media/####/tdata_ViN250
/data/media/####/tdata_pKX830
/data/media/####/test.log
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

/system/bin/dex2oat --instruction-set=x86 --dex-file=<Package Folder>/.jiagu/classes.dex --dex-file=<Package Folder>/.jiagu/classes2.dex --dex-file=<Package Folder>/.jiagu/classes3.dex --oat-file=<Package Folder>/.jiagu/classes.oat --inline-depth-limit=0 --compiler-filter=speed
/system/bin/dex2oat --runtime-arg -classpath --runtime-arg & --instruction-set=x86 --instruction-set-features=smp,ssse3,sse4.1,sse4.2,-avx,-avx2,-lock_add,popcnt --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --dex-file=/data/user/0/<Package>/files/tdata_CoH340.jar --oat-fd=57 --oat-location=/data/user/0/<Package>/files/tdata_CoH340.dex --compiler-filter=speed
/system/bin/dex2oat --runtime-arg -classpath --runtime-arg & --instruction-set=x86 --instruction-set-features=smp,ssse3,sse4.1,sse4.2,-avx,-avx2,-lock_add,popcnt --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --dex-file=/data/user/0/<Package>/files/tdata_ViN250.jar --oat-fd=56 --oat-location=/data/user/0/<Package>/files/tdata_ViN250.dex --compiler-filter=speed
/system/bin/dex2oat --runtime-arg -classpath --runtime-arg & --instruction-set=x86 --instruction-set-features=smp,ssse3,sse4.1,sse4.2,-avx,-avx2,-lock_add,popcnt --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --dex-file=/data/user/0/<Package>/files/tdata_pKX830.jar --oat-fd=48 --oat-location=/data/user/0/<Package>/files/tdata_pKX830.dex --compiler-filter=speed
/system/bin/sh -c type su
chmod 755 /data/user/0/<Package>/.jiagu/libjiagu.so
getprop

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-GCM-NoPadding
RSA-ECB-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-GCM-NoPadding

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

Gets information about location.

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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