b78a86254b0752ed6cf71762e076d66209521ab81544bddac07129ae11a6ab3d

Analysis

max time kernel
51s
max time network
44s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 12:00

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General

Target

Stub.pyc
Size

876KB
MD5

9fbdec4dae910fe824e2a687cd880232
SHA1

8b462b769e74de90f8b4a4eeef434fbf9e552b71
SHA256

d1f14d6147531a91456f7a849b3c05f83ce2df8d5f49e464eb2ab29f243431d3
SHA512

008522d8fb9400d2aae32c6e3bb43eb3163ef3e2344b2b5cc1c8e5659cf5ba3d2d7c7b3012f7939efba5b9e103206062dc18a5f872398a3148c3e1f6d553a41c
SSDEEP

12288:L4qEsMM56G0XODlk09mDEpIUdJq+gh/1yKLGUt/zjjIpstn5eqSUcKExqo0Bpn:8qfwEDl79mDKwh/1yUtUpsbjzXn

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 2 IoCs

Processes:

cmd.exeOpenWith.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

4608 NOTEPAD.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

OpenWith.exe

pid process

224 OpenWith.exe
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

OpenWith.exe

pid process

224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe
224 OpenWith.exe

pid	process
4608	NOTEPAD.EXE

pid	process
224	OpenWith.exe

pid	process
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe
224	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

OpenWith.exe

description	pid	process	target process
PID 224 wrote to memory of 4608	224	OpenWith.exe	NOTEPAD.EXE
PID 224 wrote to memory of 4608	224	OpenWith.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Modifies registry class
PID:2600

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:224

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Stub.pyc
2⤵
- Opens file in notepad (likely ransom note)
PID:4608

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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