Adware.Gexin.10239

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) a####.u####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) www.sc####.com:8090
TCP(HTTP/1.1) www.sc####.com:8080

DNS requests:

a####.u####.com
aexcep####.b####.qq.com
and####.b####.qq.com
mt####.go####.com
www.sc####.com

HTTP GET requests:

www.sc####.com:8080//gcrcsUploadFile/2017/08/10/020514/timg (5).jpg
www.sc####.com:8080//gcrcsUploadFile/2017/09/16/075520/默认标题_手机聊天背景_2017....
www.sc####.com:8080//gcrcsUploadFile/2017/11/03/fee20bb1193140a98521bdaa...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/0168330efb4d4fd1ad2cc420...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/17eda7076b6142338b2ff739...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/781b439dcb6944f79f9c24b1...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/86ed2ef2c7414f4a999a4360...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/d51f530bb45f4e628d1c91f1...
www.sc####.com:8080//gcrcsUploadFile/2017/11/07/fc38a035fe014053baec217c...
www.sc####.com:8080//gcrcsUploadFile/2017/11/08/9c3aa3dd79f84da3a74b7548...
www.sc####.com:8080//gcrcsUploadFile/2018/04/12/fdf672cd6b644cd8ba2d72bc...
www.sc####.com:8080//gcrcsUploadFile/2018/05/03/901ccf24b557478b98b919f7...
www.sc####.com:8080//gcrcsUploadFile/2018/05/28/a7ca596205404be2a0c6c813...
www.sc####.com:8080//gcrcsUploadFile/2018/06/21/e58cd68a8c464aa1a36b543b...
www.sc####.com:8080//gcrcsUploadFile/2018/09/29/7aa9ba13f49f4e27b0b037ab...
www.sc####.com:8080//gcrcsUploadFile/2018/10/08/0333da0d691c484580715e1a...
www.sc####.com:8080//gcrcsUploadFile/2018/10/10/3d1b5f0c585a4132b2f98b40...
www.sc####.com:8080//gcrcsUploadFile/2018/10/22/653e0acd041d4e24b5fdf3ba...
www.sc####.com:8080//gcrcsUploadFile/2018/10/22/8f8d3646ee6f45c2b9910c2a...
www.sc####.com:8080//gcrcsUploadFile/2019/03/11/20e2cb58882f4b54b5e08512...
www.sc####.com:8080//gcrcsUploadFile/2019/03/11/d773061b48414e44b12bc8e3...

HTTP POST requests:

a####.u####.com/app_logs
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
www.sc####.com:8080/SmartCampus/appservice/basic/checkVersion
www.sc####.com:8080/SmartCampus/appservice/index/indexInfo
www.sc####.com:8080/SmartCampus/appservice/index/indexStoreList
www.sc####.com:8080/SmartCampus/appservice/notice/noticeInfo
www.sc####.com:8080/SmartCampus/appservice/notice/noticeList
www.sc####.com:8090/appservice/advertising/advInfo

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/4413d6ca4f5655cf81e291fb3c5b8e47424d6a47e7b0cf0....0.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.whcd.smartCampus.loginInfo.xml
/data/data/####/default_sp.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/journal.tmp
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.1.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/native_record_lock
/data/data/####/security_info
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/media/####/-1107129692.tmp
/data/media/####/-1406808258.tmp
/data/media/####/-1587385543.tmp
/data/media/####/-1633392653.tmp
/data/media/####/-2025191166.tmp
/data/media/####/-2043809839.tmp
/data/media/####/-2101676807.tmp
/data/media/####/-308175364.tmp
/data/media/####/-364025726.tmp
/data/media/####/-490999075.tmp
/data/media/####/-935787477.tmp
/data/media/####/1335440375.tmp
/data/media/####/149488736.tmp
/data/media/####/1598757579.tmp
/data/media/####/171700237.tmp
/data/media/####/1813957313.tmp
/data/media/####/1823266530.tmp
/data/media/####/1962891162.tmp
/data/media/####/439862083.tmp
/data/media/####/934333773.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.1.2.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime

Loads the following dynamic libraries:

Bugly
libnfix
libshella-2.9.1.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about network.

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

Displays its own windows over windows of other apps.

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