Android.RemoteCode.3431

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.RemoteCode.127.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(TLS/1.0) api.s####.com:443
TCP(TLS/1.0) x####.tc.qq.com:443
TCP(TLS/1.0) gd-s####.j####.cn:443
TCP(TLS/1.0) t####.j####.cn:443
UDP s.j####.cn:19000
TCP 1####.230.236.49:7008

DNS requests:

a####.b####.qq.com
a####.exc.mob.com
aexcep####.b####.qq.com
ali-s####.j####.cn
and####.b####.qq.com
api.s####.com
gd-s####.j####.cn
s.b####.g####.com
s.j####.cn
t####.j####.cn

HTTP POST requests:

a####.exc.mob.com/errconf
aexcep####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####

File system changes:

Creates the following files:

/data/data/####/.duid
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/05cfad5c-2b0c-4c30-b260-4224022f209a
/data/data/####/0710f113-32d4-4769-93e2-b21134c4d276
/data/data/####/1002
/data/data/####/1004
/data/data/####/408d1d39-245c-464f-9ca8-602e2e96aef9.zip
/data/data/####/5f1f683d-74a2-47f5-978e-247f1b0cbdd4
/data/data/####/89e4f7e7-bf78-47e7-952f-4da34de2677c
/data/data/####/8abe695de6faacf4c6db25b949ad01da5920af092255b55....0.tmp
/data/data/####/93accadb6c0be3784c56304415c7f7f6accff985e6f1aa6....0.tmp
/data/data/####/93cfc1353b205b2280611574ceecfe4963227e85aa07238....0.tmp
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/JPushSA_Config.xml
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/a52168fb-f121-45ec-85a1-bffbec8d5d27
/data/data/####/appPackageNames_v2
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/changed_classes.dex.dex
/data/data/####/changed_classes.dex.jar
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.sxrong.kaka.BETA_VALUES.xml
/data/data/####/crashrecord.xml
/data/data/####/domain_1
/data/data/####/info.lock
/data/data/####/journal.tmp
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/kaka.xml
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.5.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/patch-cef738ed.apk
/data/data/####/patch.apk
/data/data/####/patch.info
/data/data/####/patch.retry
/data/data/####/resources.apk
/data/data/####/resources.arsc
/data/data/####/security_info
/data/data/####/sobot_chat_20190221_log.txt
/data/data/####/sobot_config.xml
/data/data/####/temp.apk
/data/data/####/test.dex.dex
/data/data/####/test.dex.jar
/data/data/####/tmpPatch.apk
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/media/####/.artc_lock
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.push_deviceid
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock

Miscellaneous:

Executes the following shell scripts:

/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
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-2.9.0.5.so
chmod 700 /data/user/0/<Package>/tx_shell/libufix.so
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.5.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
ps

Loads the following dynamic libraries:

Bugly
jcore125
libnfix
libshella-2.9.0.5
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-ECB-NoPadding
AES-GCM-NoPadding

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.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

Gets information about sent/received SMS.

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