Android.Backdoor.1601

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.640.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) wap.n.sh####.com:80
TCP(HTTP/1.1) t####.api.i####.com:80
TCP(HTTP/1.1) wn.pos.b####.com:80
TCP(HTTP/1.1) h####.opensp####.cn:80
TCP(HTTP/1.1) mo####.b####.com:80
TCP(HTTP/1.1) ub####.baidust####.com:80
TCP(HTTP/1.1) v####.6####.com:80
TCP(HTTP/1.1) g1.api.i####.com:80
TCP(HTTP/1.1) sh.wagbr####.alibaba####.com:80
TCP(HTTP/1.1) p####.tc.qq.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) sdk.91a####.com:80
TCP(HTTP/1.1) u####.v.tr####.net:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(TLS/1.0) mobads-####.b####.com:443
TCP(TLS/1.0) 1####.217.17.142:443
TCP(TLS/1.0) c####.baidust####.com:443
TCP(TLS/1.0) dow####.b####.com:443
TCP(TLS/1.0) log.9####.com:443
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) msg.umengc####.com:443
TCP(TLS/1.0) down####.b####.com:443
TCP(TLS/1.0) a####.a####.m.####.com:443
TCP openj####.m.ta####.com:80
TCP ope####.m.ta####.com:443

DNS requests:

a####.b####.qq.com
a####.m.ta####.com
a####.u####.com
aexcep####.b####.qq.com
ag####.m.ta####.com
and####.b####.qq.com
api.map.b####.com
c####.baidust####.com
dow####.b####.com
down####.b####.com
g1.api.i####.com
h####.opensp####.cn
imgc####.qq.com
loc.map.b####.com
log.9####.com
log.u####.com
m.b####.com
mi.g####.qq.com
mo####.b####.com
mobads-####.b####.com
msg.umengc####.com
s####.e.qq.com
s####.u####.com
sdk.91a####.com
t####.api.i####.com
u####.9####.com
ub####.baidust####.com
umen####.m.ta####.com
umengj####.m.ta####.com
v####.6####.com
w####.5####.com
wn.pos.b####.com

HTTP GET requests:

h####.opensp####.cn/launchconfig?t=####&p=####
mi.g####.qq.com/gdt_mview.fcg?posw=####&posh=####&count=####&r=####&data...
mo####.b####.com/ads/pa/8/__pasys_remote_banner.php?bdr=####&os=####&v=#...
mo####.b####.com/ads/pa/8/__xadsdk__remote__8.8002.jar
mo####.b####.com/cpro/ui/mads.php?code2=####
p####.tc.qq.com/qzone/biz/gdt/mod/android/AndroidAllInOne/proguard/his/r...
sdk.91a####.com/static/20171217140537mod.enc
sh.wagbr####.alibaba####.com/bar/get/565be29767e58ea7a700078a/?ud_get=####
t####.api.i####.com/trace.htm?t=####&pid=####&p=eb2LO####
u####.v.tr####.net/api/v2/user/recordDevice
ub####.baidust####.com/media/v1/0f000rgfXDsNy3wfoyuAQ0.jpg
wap.n.sh####.com/mobads.php?060000a####
wn.pos.b####.com/adx.php?c=####&ext=####

HTTP POST requests:

a####.u####.com/app_logs
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=####
g1.api.i####.com/api.htm?pid=####
loc.map.b####.com/sdk.php
s####.e.qq.com/activate
s####.e.qq.com/msg
sdk.91a####.com/api/DeviceReport.ashx
v####.6####.com/api/CheckModule.ashx
v####.6####.com/api/GetModuleConfig.ashx

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/1004
/data/data/####/1535701693272.log
/data/data/####/1535701693272.log.bak
/data/data/####/ACCS_BINDumeng;565be29767e58ea7a700078a.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/__sdk_m_0f000rgfXDsNy3wfoyuAQ0.jpg
/data/data/####/__sdk_m_mob-adIcon_2x.png
/data/data/####/__sdk_m_mob-logo_2x.png
/data/data/####/__sdk_remote_dl_2.xml
/data/data/####/__x_adsdk_agent_header__.xml
/data/data/####/__xadsdk__remote__final__76f49980-c703-4871-b90...31.jar
/data/data/####/__xadsdk__remote__final__builtin__.jar
/data/data/####/__xadsdk__remote__final__running__.jar
/data/data/####/__xadsdk_downloaded__version__.xml
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/authStatus_com.jjdance;remote.xml
/data/data/####/baidu_mobads_activate.xml
/data/data/####/base.js
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.baidu.mobads.loader.xml
/data/data/####/common.js
/data/data/####/config.xml
/data/data/####/cpro.baidu.com.js
/data/data/####/crashrecord.xml
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/download_item_db-journal
/data/data/####/eudemon
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/firll.dat
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_suid
/data/data/####/ifly_launch_lib.xml
/data/data/####/install_sent.xml
/data/data/####/libcuid.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/m.baidu.com.js
/data/data/####/m.chinebuy.com.js
/data/data/####/max_pref.xml
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/mix.dex
/data/data/####/mod.dec
/data/data/####/mod.dex
/data/data/####/mod.enc
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/phan.xml
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/security_info
/data/data/####/start.js
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/update_lc
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/88cbf6d7559cb26ed12f1e49410692b7.apk.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/deviceToken
/data/media/####/e8cb520680f540e585a2101bc35f87c5
/data/media/####/id.tmp
/data/media/####/journal.tmp
/data/media/####/test.0

Miscellaneous:

Executes next 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
<Package Folder>/files/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"umeng:565be29767e58ea7a700078a","utdid":"W4jyvONqrjgDAGdzx1HE8gZ/","sdkVersion":"220"} -I agoodm.m.taobao.com -O 80 -T -Z
chmod 500 <Package Folder>/files/DaemonServer
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
sh

Loads the following dynamic libraries:

Bugly
libnfix
libshella-2.9.0.2
libufix
locSDK7
msc
nfix
tnet-3.1
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

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

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.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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