Adware.Gexin.2531

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) lbs.net####.im:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) so####.cloudwo####.cn:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) www.cloudwo####.cn:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) 1####.217.17.78:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.go####.nl:443
TCP(TLS/1.0) nim.qi####.com:443
TCP(TLS/1.0) adser####.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224
TCP l####.net####.im:8080

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
adser####.go####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
l####.net####.im
lbs.net####.im
mt####.go####.com
nim.qi####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
so####.cloudwo####.cn
ssl.gst####.com
www.cloudwo####.cn
www.go####.com
www.go####.nl
www.gst####.com

HTTP GET requests:

lbs.net####.im/lbs/conf.jsp?tp=####&sv=####&pv=####&id=####&k=####
so####.cloudwo####.cn/uploads/img/2017070711131054485256.jpg
so####.cloudwo####.cn/uploads/img/2017092618455551521005.png
so####.cloudwo####.cn/uploads/img/2018032709240048100531.png
so####.cloudwo####.cn/uploads/img/2018032717190355101501.png
so####.cloudwo####.cn/uploads/img/2018032822550557561021.jpeg
so####.cloudwo####.cn/uploads/img/2018041011410110010157.png
so####.cloudwo####.cn/uploads/img/2018042818105648995110.png
so####.cloudwo####.cn/uploads/img/2018042818110557499951.png
so####.cloudwo####.cn/uploads/img/2018042818111248100511.png
so####.cloudwo####.cn/uploads/img/2018052309530448981005.png
so####.cloudwo####.cn/uploads/img/2018070315082052551015.png
so####.cloudwo####.cn/uploads/img/2018070315082557539954.png
so####.cloudwo####.cn/uploads/index/11.png
so####.cloudwo####.cn/uploads/index/2.png
so####.cloudwo####.cn/uploads/index/3.png
so####.cloudwo####.cn/uploads/index/4.png
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_vxj811
ti####.c####.l####.####.com/config/hz-hzv3.conf
www.cloudwo####.cn/index.php/index/index/news_detail?id=####&token=####
www.cloudwo####.cn/index.php/index/index/reply_list?type=####&rid=####&t...
www.cloudwo####.cn/index.php/index/index/user_collect_list?type=####&cid...
www.cloudwo####.cn/index.php/index/index5_4/get_app_icon_list?type=####&...
www.cloudwo####.cn/index.php/index/index5_4/get_guide_img?id=####
www.cloudwo####.cn/index.php/index/index5_4/new_index_news?token=####&pa...
www.cloudwo####.cn/index.php/index/sys/index
www.cloudwo####.cn/ueditor/php/upload/image/20180627/1530093614790220.jpg
www.cloudwo####.cn/web/jquery-obj/static/web/comment.png
www.cloudwo####.cn/web/jquery-obj/static/web/css/designer.css
www.cloudwo####.cn/web/jquery-obj/static/web/css/footer_comment.css
www.cloudwo####.cn/web/jquery-obj/static/web/html/designer.html?content=...
www.cloudwo####.cn/web/jquery-obj/static/web/js/alert.js
www.cloudwo####.cn/web/jquery-obj/static/web/js/designer.js
www.cloudwo####.cn/web/jquery-obj/static/web/js/footer_comment.js
www.cloudwo####.cn/web/jquery-obj/static/web/js/jquery.min.js
www.cloudwo####.cn/web/jquery-obj/static/web/like.png

HTTP POST requests:

a####.u####.com/app_logs
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####
www.cloudwo####.cn/index.php/index/index5_4/add_device
www.cloudwo####.cn/index.php/index/index5_4/save_index_log
www.cloudwo####.cn/index.php/index/index5_4/save_user_login_log

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/6dc4b8711582
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Le3c3RuoeNGbntBorWpGj40eGVI.-191716779.tmp
/data/data/####/NIMSDK_Config_e98a79aca99f25ebf9bacbc8c334b76b.xml
/data/data/####/NIMSDK_Config_e98a79aca99f25ebf9bacbc8c334b76b_...43.xml
/data/data/####/Unicorn.e98a79aca99f25ebf9bacbc8c334b76b.xml
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/client_id.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f3mHrcP4fNFx4tMoL3yyBs1sA-k.-663091815.tmp
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000003 (deleted)
/data/data/####/f_000004
/data/data/####/first_in.xml
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jYgH2rCB_8TL-dJVaXIRF6-1H2w.-1407977130.tmp
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/msg.db-journal
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qiyu_save_e98a79aca99f25ebf9bacbc8c334b76b.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_vxj811
/data/data/####/tdata_vxj811.jar
/data/data/####/tg6W7P7q3D1o5rSZFIvVL4Jr4U4.876837151.tmp
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak
/data/data/####/umeng_it.cache
/data/data/####/unicorn#cheese#
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/.nomedia
/data/media/####/0efb91f72d24fe23257d65cd32439036.0.tmp
/data/media/####/0efb91f72d24fe23257d65cd32439036.1.tmp
/data/media/####/2285ca272e6a5cbc236f07bb27001c4c41d9322b9d409c....0.tmp
/data/media/####/2320d43718e0b8112b883a82b473e3576d96a56a940054....0.tmp
/data/media/####/451cbc96e2b6b9c28f9883d997e224fa7d50d57a19843c....0.tmp
/data/media/####/4c6f1957cfee1ec49d061cd6420c050f.0.tmp
/data/media/####/4c6f1957cfee1ec49d061cd6420c050f.1.tmp
/data/media/####/7310b238696bb10608346222c969cddcf4e9bd6c9c5200....0.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/aa4e86c0e6c6aaff34c34f79ba3a1fa98e5278b323a60d....0.tmp
/data/media/####/ac07fbdd3c18a1502053dc2a5d0c89372cad5a10f4fb33....0.tmp
/data/media/####/app.db
/data/media/####/cn.cloudworkshop.miaoding.bin
/data/media/####/cn.cloudworkshop.miaoding.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/d121fefaf25e07bafc03764d96adfcf9f656df5a9387dc....0.tmp
/data/media/####/e8666cbf32a57b219be1ad7d6f6b3e7498bea4dd7b1aee....0.tmp
/data/media/####/journal.tmp
/data/media/####/nim_sdk.log
/data/media/####/tdata_Soq141
/data/media/####/tdata_vxj811
/data/media/####/test.log

Miscellaneous:

Executes next 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
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTuiService 25569 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.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
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.GeTuiService 25569 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
imagepipeline
libnfix
libshella-2.9.0.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about APN settings.

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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