crimsonrat | 2f8e2c8300b7854ff204375f5116854cee7c4ef11f9b080dce89713867fd7066

Analysis

max time kernel
158s
max time network
161s
platform
windows10_x64
resource
win10-en-20211208
submitted
30-01-2022 15:39

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General

Target

2f8e2c8300b7854ff204375f5116854cee7c4ef11f9b080dce89713867fd7066.pps
Size

831KB
MD5

6c683aca669e1c448b0abce3df49fcb1
SHA1

2c5686beca1f8b111f3a5568681004de526130f6
SHA256

2f8e2c8300b7854ff204375f5116854cee7c4ef11f9b080dce89713867fd7066
SHA512

30a7b2c804c7b7cf69a99ba7f614b4a4fb1b14ac7683ba1c5e8fad7269d9b3a950fc35eac92045ce1e5d96d399c5ba1f0a4bf6ef39648943cd8f1fd15b8daff6

Score

10^/10

crimsonrat rat

Malware Config

Signatures

CrimsonRAT Main Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000500000001ab6a-346.dat	family_crimsonrat
behavioral2/files/0x000500000001ab6a-345.dat	family_crimsonrat

CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
rat crimsonrat

Executes dropped EXE 1 IoCs

pid	Process
1404	wardhmrias.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	POWERPNT.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3908	POWERPNT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3908	POWERPNT.EXE
3908	POWERPNT.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3908	POWERPNT.EXE
3908	POWERPNT.EXE
3908	POWERPNT.EXE
3908	POWERPNT.EXE
3908	POWERPNT.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 1404	3908	POWERPNT.EXE	71
PID 3908 wrote to memory of 1404	3908	POWERPNT.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE
"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" /s "C:\Users\Admin\AppData\Local\Temp\2f8e2c8300b7854ff204375f5116854cee7c4ef11f9b080dce89713867fd7066.pps" /ou ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Users\Admin\Maltimedia\wardhmrias.exe
  C:\Users\Admin\Maltimedia\wardhmrias.exe
  2⤵
  - Executes dropped EXE
  PID:1404

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

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Downloads

memory/1404-353-0x000001D333FA0000-0x000001D334956000-memory.dmp

Filesize
9.7MB

Download
memory/1404-354-0x000001D34EDE0000-0x000001D34EDE2000-memory.dmp

Filesize
8KB

Download
memory/3908-115-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/3908-116-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads