Adware.Gexin.3700

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) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) app####.n####.com.cn:80
TCP(HTTP/1.1) ap####.n####.com.cn:80
TCP(HTTP/1.1) a####.b####.qq.com:8012
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) app-####.n####.com.cn:80
TCP(HTTP/1.1) wap.clo####.cn:80
TCP(TLS/1.0) api.tui####.b####.com:443
TCP(TLS/1.0) statson####.pu####.b####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) 1####.217.17.46:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP sa.tui####.b####.com:5287
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
aexcep####.b####.qq.com
and####.b####.qq.com
ap####.n####.com.cn
api.map.b####.com
api.tui####.b####.com
app####.n####.com.cn
app-####.n####.com.cn
app-####.n####.com.cn
c####.g####.ig####.com
c-h####.g####.com
loc.map.b####.com
log.u####.com
o####.map.b####.com
plb####.u####.com
pub-####.qin####.com
sa.tui####.b####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
statson####.pu####.b####.com
t####.n####.com.cn
u####.u####.com
wap.clo####.cn

HTTP GET requests:

ap####.n####.com.cn/1/news/getlist?app_id=####&app_key=####&equip_type=#...
app####.n####.com.cn/activity/init?userid=####&imei=####&isNewInstall=####
app####.n####.com.cn/index.action?action=####&app_id=####&app_key=####&p...
app####.n####.com.cn/uploads/images/20181016/bc7e41c7408cbb35d8ac2faf7da...
app-####.n####.com.cn/newsapp/index.action?app_id=####&app_key=####&acti...
t####.c####.q####.####.com/000011a8c91680f844cc59c6caaf204c61024561d6df9...
t####.c####.q####.####.com/00001421f324977d7a0348acea604cca7dc957baf3ba4...
t####.c####.q####.####.com/0000177c5724cdbd84d18e090330d26384a891527cd92...
t####.c####.q####.####.com/1000151553ee65607dbe117c70bda0ad95c4170df3227...
t####.c####.q####.####.com/10001b0b05494b9468760b4d450a774e01ee6b5e740b4...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_vHH584
t####.c####.q####.####.com/tdata_wmL809
wap.clo####.cn/jhxt/api.php?s=####

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
ap####.n####.com.cn/1/user/getchannellist
ap####.n####.com.cn/index.action?action=####&app_id=####&app_key=####&pa...
ap####.n####.com.cn/newsapp/index.action
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/-215082958
/data/data/####/.imprint
/data/data/####/1002
/data/data/####/1004
/data/data/####/2b2c0b0dda08
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/MultiDex.lock
/data/data/####/SplashConfig.xml
/data/data/####/authStatus_com.myxianwen.nanguozaobao;remote.xml
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/com.baidu.pushservice.BIND_CACHE.xml
/data/data/####/com.baidu.pushservice.app_stat.xml
/data/data/####/com.baidu.pushservice.friend.xml
/data/data/####/com.baidu.pushservice.single_conn.xml
/data/data/####/com.myxianwen.nanguozaobao.BETA_VALUES.xml
/data/data/####/com.myxianwen.nanguozaobao.BETA_VALUES.xml.bak
/data/data/####/com.myxianwen.nanguozaobao.push_sync.xml
/data/data/####/com.myxianwen.nanguozaobao.self_push_sync.xml
/data/data/####/com.myxianwen.nanguozaobao_preferences.xml
/data/data/####/crash_1.3.4_2018-10-18T01;17;35Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;38Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;39Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;41Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;42Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;45Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;46Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;51Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;17;52Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;00Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;02Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;06Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;07Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;16Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;17Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;34Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;35Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;36Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;37Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;38Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;39Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;40Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;41Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;42Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;43Z.mlog
/data/data/####/crash_1.3.4_2018-10-18T01;18;44Z.mlog
/data/data/####/crashrecord.xml
/data/data/####/electronicNewsPaperConfig.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/i==1.2.0&&1.3.4_1539868655107_envelope.log
/data/data/####/i==1.2.0&&1.3.4_1539868666539_envelope.log
/data/data/####/i==1.2.0&&1.3.4_1539868686866_envelope.log
/data/data/####/iimedia_upload_seq.xml
/data/data/####/iimedianews.xml
/data/data/####/iimedianewscollectugc.db-journal
/data/data/####/iimedianewsliteorm.db
/data/data/####/iimedianewsliteorm.db-journal
/data/data/####/iimedianewsliteorm4vedio.db
/data/data/####/iimedianewsliteorm4vedio.db-journal
/data/data/####/imuser_channel.xml
/data/data/####/imuser_otherchannel.xml
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/multidex.version.xml
/data/data/####/nanguo_activity_config.xml
/data/data/####/nanguo_activity_config.xml.bak
/data/data/####/native_record_lock
/data/data/####/notification_builder_storage.xml
/data/data/####/pst.xml
/data/data/####/pst.xml (deleted)
/data/data/####/pst.xml.bak (deleted)
/data/data/####/push.pid
/data/data/####/pushclient.xml
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushinfo.db
/data/data/####/pushinfo.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/pushstat_6.1.1.db
/data/data/####/pushstat_6.1.1.db-journal
/data/data/####/run.pid
/data/data/####/s_user_Id.xml
/data/data/####/s_user_Id_default.xml
/data/data/####/security_info
/data/data/####/splash_info.xml
/data/data/####/sys_log_153986869519923.txt (deleted)
/data/data/####/tdata_vHH584
/data/data/####/tdata_vHH584.jar
/data/data/####/tdata_wmL809
/data/data/####/tdata_wmL809.jar
/data/data/####/tray.db
/data/data/####/tray.db-journal
/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_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/xw_user_info.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/4793fdd154d7dcd6
/data/media/####/5242808641369065083
/data/media/####/Memo.d
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.myxianwen.nanguozaobao.bin
/data/media/####/com.myxianwen.nanguozaobao.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/sysid.dat
/data/media/####/tdata_vHH584
/data/media/####/tdata_wmL809
/data/media/####/test.log

Miscellaneous:

Executes next 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
/system/bin/sh -c getprop
/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>/com.iimedianets.iimedianewsapp.service.IgexinPushService 25687 300 0
cat /sys/class/net/wlan0/address
chmod 700 /data/user/0/<Package>/tx_shell/libnfix.so
chmod 700 /data/user/0/<Package>/tx_shell/libshella-2.9.0.2.so
chmod 700 /data/user/0/<Package>/tx_shell/libufix.so
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
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
logcat -t 100 -v time
ls /sys/class/thermal
mount
netstat -ant
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.iimedianets.iimedianewsapp.service.IgexinPushService 25687 300 0

Loads the following dynamic libraries:

Bugly
bdpush_V2_9
getuiext2
libnfix
libshella-2.9.0.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
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 installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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