Android.SmsSend.22139

Technical information

Malicious functions:

Sends SMS messages:

106575206321505460: dyl#<IMSI>,<IMEI>,6000123-1-70418-ZZ_default-0
106912114516412: systemcGx1dG8yNTAwMjY2OTkxODc3NDM=

Executes code of the following detected threats:

Android.SmsSend.1848.origin
Tool.Rooter.43.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

1####.####.185:28018
1####.####.25:28018
1####.####.4:28018
a####.####.com
a####.####.com:6099
a####.####.site:8090
huangda####.com
o####.####.com
p####.####.cn

HTTP GET requests:

1####.####.185:28018/update/100.zip
1####.####.185:28018/update/101_m.zip
1####.####.25:28018/kr/kreq.jsp?m=####&a=####&l=####
1####.####.25:28018/kr/krsl.jsp?m=####&a=####&e=####
1####.####.25:28018/kr/p.jsp?m=####&l=####
1####.####.4:28018/update/updateclz.zip
a####.####.com:6099/sunnyinit?channel=####&imsi=####&calltime=####&callc...
a####.####.com:6099/turnon?cpid=####&packagename=####
a####.####.site:8090/afee?cpid=####&appfee_id=####&fee=####&smsc=####&im...
a####.####.site:8090/getdata?cpid=####&packagename=####
a####.####.site:8090/phoneget?cpid=####&ismi=####&calltime=####&callcoun...
huangda####.com/active!activeLog.action?provider=####&clickId=####&manu=...
huangda####.com/apk!requestApkLog.action?provider=####&reqType=####&resu...
huangda####.com/resource!resource?resTypes=####&appid=####&channel=####&...

HTTP POST requests:

a####.####.com/app_logs
huangda####.com/resource!plugUpdate
huangda####.com/shop/shop_upload_log
o####.####.com/check_config_update
p####.####.cn/index.php/API

Modified file system:

Creates the following files:

<Package Folder>/app_apCoreplugn/####/plugin-20170330-2.1.9-release.bin
<Package Folder>/app_apCoreplugn/map.apk
<Package Folder>/app_apCoreplugn/sm.apk
<Package Folder>/app_krsdk/__krsdk.res__
<Package Folder>/app_krsdk/kd
<Package Folder>/app_krsdk/krsdk.res
<Package Folder>/app_krsdk/libkrsdk.1.0.154.so
<Package Folder>/app_krsdk/mybm.dex.jar
<Package Folder>/app_krsdk/test.apk
<Package Folder>/app_krsdk/zTmp3_100
<Package Folder>/app_krsdk/zTmp3_101_m
<Package Folder>/app_plugin_dir/####/base-1.apk
<Package Folder>/app_plugin_dir/####/base-1.dex
<Package Folder>/app_slog/actsts
<Package Folder>/app_tmp/dkx
<Package Folder>/app_tmp/tkx (deleted)
<Package Folder>/baea/entrance.jar
<Package Folder>/baea/tmb.jar
<Package Folder>/cache/map.apk.apk
<Package Folder>/cache/sm.apk.apk
<Package Folder>/databases/MA_epay_db
<Package Folder>/databases/MA_epay_db-journal
<Package Folder>/databases/bil_db
<Package Folder>/databases/bil_db-journal
<Package Folder>/databases/com.souying.pay.plugmain_sy_pay_record-journal
<Package Folder>/databases/db_feeList
<Package Folder>/databases/db_feeList-journal
<Package Folder>/databases/mp.db
<Package Folder>/databases/mp.db-journal
<Package Folder>/databases/p2_epay_db
<Package Folder>/databases/p2_epay_db-journal
<Package Folder>/databases/recordInfo-journal
<Package Folder>/databases/sm.db-journal
<Package Folder>/databases/sy_pay_record-journal
<Package Folder>/databases/webview.db-journal
<Package Folder>/files/.imprint
<Package Folder>/files/__rbpr_c_s__
<Package Folder>/files/__rbpr_l_s__
<Package Folder>/files/doup32
<Package Folder>/files/i.sh
<Package Folder>/files/kr-stock-conf
<Package Folder>/files/libexec.so
<Package Folder>/files/libexecmain.so
<Package Folder>/files/mobclick_agent_cached_<Package>70418
<Package Folder>/files/noend.ini
<Package Folder>/files/umeng_it.cache
<Package Folder>/files/upnpclz.apk
<Package Folder>/files/vercheck1
<Package Folder>/files/zTmp
<Package Folder>/plda/ppj.jar
<Package Folder>/shared_prefs/CO_SPS.xml
<Package Folder>/shared_prefs/SL_SPS.xml
<Package Folder>/shared_prefs/TestinAgent.xml
<Package Folder>/shared_prefs/b_setting.xml
<Package Folder>/shared_prefs/b_setting.xml.bak
<Package Folder>/shared_prefs/b_share.xml
<Package Folder>/shared_prefs/b_share.xml.bak
<Package Folder>/shared_prefs/b_share.xml.bak (deleted)
<Package Folder>/shared_prefs/com.souying.pay.xml
<Package Folder>/shared_prefs/cpMsg.xml
<Package Folder>/shared_prefs/device_id.xml.xml
<Package Folder>/shared_prefs/dispatch_log.xml
<Package Folder>/shared_prefs/edition.xml
<Package Folder>/shared_prefs/ma_call.xml
<Package Folder>/shared_prefs/ma_data.xml
<Package Folder>/shared_prefs/ma_data.xml.bak
<Package Folder>/shared_prefs/ma_epay_share.xml
<Package Folder>/shared_prefs/ma_epay_share.xml.bak
<Package Folder>/shared_prefs/ma_phone.xml
<Package Folder>/shared_prefs/ma_phone.xml.bak
<Package Folder>/shared_prefs/mobclick_agent_online_setting_<Package>.xml
<Package Folder>/shared_prefs/new_vvsion.xml
<Package Folder>/shared_prefs/nnt_data.xml
<Package Folder>/shared_prefs/nnt_data.xml.bak
<Package Folder>/shared_prefs/p2_call.xml
<Package Folder>/shared_prefs/p2_data.xml
<Package Folder>/shared_prefs/p2_data.xml.bak
<Package Folder>/shared_prefs/p2_edition.xml
<Package Folder>/shared_prefs/p2_epay_share.xml
<Package Folder>/shared_prefs/p2_epay_share.xml.bak
<Package Folder>/shared_prefs/plugins.installed.xml
<Package Folder>/shared_prefs/plugins.serviceMapping.xml
<Package Folder>/shared_prefs/pretw.xml
<Package Folder>/shared_prefs/rh_info.xml
<Package Folder>/shared_prefs/sy_pay_config.xml
<Package Folder>/shared_prefs/sy_pay_config.xml.bak
<Package Folder>/shared_prefs/tpservices.xml
<Package Folder>/shared_prefs/twc.xml
<Package Folder>/shared_prefs/twc.xml.bak
<Package Folder>/shared_prefs/umeng_general_config.xml
<Package Folder>/shared_prefs/umeng_general_config.xml.bak
<SD-Card>/.tpservice/####/qsha_80001_5094.jar
<SD-Card>/.twservice/####/tw
<SD-Card>/.twservice/qshp_3003_2249.zip
<SD-Card>/gooogle/userid.cfg
<SD-Card>/kr-stock-conf
<SD-Card>/krsdk_debug.txt

Miscellaneous:

Executes next shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/sh
cat /proc/version
cat /sys/block/mmcblk0/device/cid
chmod 755 <Package Folder>/files/
chmod 777 <Package Folder>/files/doup32
chmod 777 <Package Folder>/files/i.sh
chmod 777 <Package Folder>/files/vercheck1
getprop ro.product.cpu.abi
getprop ro.product.cpu.abi2
ls -lZ <Package Folder>/app_krsdk/
ps
rm -rf <Package Folder>/app_krsdk/
sh

Loads the following dynamic libraries:

goldcoast
libexec
libexecmain
libkrsdk.1.0.154

Uses the following algorithms to encrypt data:

Uses the following algorithms to decrypt data:

AES
AES-CBC-PKCS5Padding
DES

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.

Displays its own windows over windows of other applications.

Parses information from SMS messages.

Gains access to information about incoming/outgoing calls.

Gains access to information about sent/received SMS messages.

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Technical information

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