Android.Backdoor.2306

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.657.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) up####.sdk.jig####.cn:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) ap####.un####.cn:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(TLS/1.0) api.w####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) e####.un####.cn:443
TCP(TLS/1.0) s####.j####.cn:443
TCP(TLS/1.0) res####.a####.com:443
TCP(TLS/1.0) 1####.217.168.206:443
TCP(TLS/1.0) t-web-####.fastret####.cn:443
TCP sdk.o####.t####.####.com:5224
TCP 39.98.2####.22:7006
TCP c####.g####.ig####.com:5225
UDP s.j####.cn:19000

DNS requests:

7j####.c####.z0.####.com
amap####.cn-hang####.oss####.####.com
ap####.un####.cn
api.w####.com
appon####.un####.cn
av1.x####.com
c####.g####.ig####.com
c-h####.g####.com
e####.un####.cn
i.t####.com
pi####.qq.com
pub-####.qin####.com
res####.a####.com
s####.j####.cn
s.j####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
t-web-####.fastret####.cn
up####.sdk.jig####.cn

HTTP GET requests:

qin####.com.www.####.com/tdata_EDT369
sh.wagbr####.aliyun####.com/sdkcoor/android/x86/libJni_wgs2gcj.so
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_LsR975
t####.c####.q####.####.com/tdata_RyW085
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_lOE499

HTTP POST requests:

ap####.un####.cn/?st=####&sv=####&tm=####&sid=fy0####&apn=####&ct=####&p...
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report/?index=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####
up####.sdk.jig####.cn/v1/push/sdk/postlist

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.jg.ic
/data/data/####/.tpns.service.xml.xml
/data/data/####/.tpns.settings.xml.xml
/data/data/####/1558192332116_3104
/data/data/####/1558192332242_2577
/data/data/####/1558192336222_3104
/data/data/####/1558192337521_3226
/data/data/####/1558192338300_3104
/data/data/####/1558192338812_2577
/data/data/####/1558192339007_2577
/data/data/####/1558192339600_3104
/data/data/####/1558192342590_2577
/data/data/####/1558192343054_2577
/data/data/####/1558192343782_2577
/data/data/####/1558192343970_2577
/data/data/####/1d2b904cbeadfb72ed9546111a231c85.0
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/GtToken.xml
/data/data/####/JPushSA_Config.xml
/data/data/####/JgToken.xml
/data/data/####/Pythagoras_phase.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/XNSDKStore1.0.xml
/data/data/####/XNclientid.xml
/data/data/####/XNmachineid.xml
/data/data/####/XgToken.xml
/data/data/####/appPackageNames
/data/data/####/b01e59795895
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml (deleted)
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.yek.android.uniqlo_preferences.xml
/data/data/####/com.yek.android.uniqlo_preferences.xml.bak
/data/data/####/config.xml
/data/data/####/core_info
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_local_notification.db
/data/data/####/jpush_local_notification.db-journal
/data/data/####/jpush_local_notification.db-wal
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_statistics.db
/data/data/####/jpush_statistics.db-journal
/data/data/####/jpush_statistics.db-shm (deleted)
/data/data/####/jpush_statistics.db-wal
/data/data/####/kf_9552_1544079623082_ISME9754_guest94882133924...913583
/data/data/####/kf_9552_1544079623082_ISME9754_guest94882133924...ournal
/data/data/####/libjiagu-184875453.so
/data/data/####/loctemp.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/lotuseed.apps
/data/data/####/lotuseed.lock
/data/data/####/lotuseed.s
/data/data/####/lotuseed.task
/data/data/####/lotuseed_global.xml
/data/data/####/lotuseed_main.xml
/data/data/####/mPBE.xml
/data/data/####/multidex.version.xml
/data/data/####/pref.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/screen.xml
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_config.xml (deleted)
/data/data/####/tbslock.txt
/data/data/####/tdata_LsR975
/data/data/####/tdata_LsR975.jar
/data/data/####/tdata_RyW085
/data/data/####/tdata_RyW085.jar
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_lOE499
/data/data/####/tdata_lOE499.jar
/data/data/####/tdid.xml
/data/data/####/tpush.shareprefs.xml
/data/data/####/weibo_sdk_aid1
/data/data/####/xnsdkconfig.xml
/data/data/####/xpush.xml
/data/media/####/.nomedia
/data/media/####/.push_deviceid
/data/media/####/.tcookieid
/data/media/####/1558192335596.db
/data/media/####/alsn20170807.db
/data/media/####/alsn20170807.db-journal
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.yek.android.uniqlo.bin
/data/media/####/com.yek.android.uniqlo.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/lotuseed.devid
/data/media/####/tbslog.txt
/data/media/####/tdata_LsR975
/data/media/####/tdata_RyW085
/data/media/####/tdata_YYn966
/data/media/####/tdata_lOE499
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GTPushService 25187 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
getprop ro.product.cpu.abi
mount
ps
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GTPushService 25187 300 0

Loads the following dynamic libraries:

getuiext2
jcore117
libjiagu-184875453
sec
tpnsSecurity
weibosdkcore

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
DES-CBC-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding
AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

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 APN settings.

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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