31475717735f9aee20def2a4044b42a52cb92e8cf885b92a042099a273688135

Analysis

max time kernel
299s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
26-03-2023 04:40

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General

Target

tools/reextra.py
Size

48KB
MD5

6eaae98129246db6647ba4ee5da2bfb4
SHA1

486e0d6269f7f4d3fb46c3b3fab6fb277105cebf
SHA256

5112741782616616362dda4870171280c053a634e48b7f75e28396909303f0c3
SHA512

8ae6d5e8f392ae827963d2555af83d306ab90df5aeebcabf3c8140769350b5007c5447107192a229d91ee8c9798ca8bf8866476b8da7bd1adcd1a7eac50bfad8
SSDEEP

384:06VzQdo5F4fDQAC16aHVAAXdrpxuaFBoC4qeyNRSZ4kY+XIpk8WmI0ULjRlhnGJ7:bVkdjfMACXVAuxOOs4PBVUxlgl/mDg7

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

320 AcroRd32.exe
320 AcroRd32.exe
320 AcroRd32.exe

pid	process
320	AcroRd32.exe
320	AcroRd32.exe
320	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1320 wrote to memory of 772	1320	cmd.exe	rundll32.exe
PID 1320 wrote to memory of 772	1320	cmd.exe	rundll32.exe
PID 1320 wrote to memory of 772	1320	cmd.exe	rundll32.exe
PID 772 wrote to memory of 320	772	rundll32.exe	AcroRd32.exe
PID 772 wrote to memory of 320	772	rundll32.exe	AcroRd32.exe
PID 772 wrote to memory of 320	772	rundll32.exe	AcroRd32.exe
PID 772 wrote to memory of 320	772	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\tools\reextra.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1320

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\tools\reextra.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:772

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\tools\reextra.py"
3⤵
- Suspicious use of SetWindowsHookEx
PID:320

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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