58e8cf2a77663a1ff5cc36aa9e0777ce952eaa258c9b8220cadb5a53bed89724

Analysis

max time kernel
150s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05-02-2023 11:45

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General

Target

collections/__init__.pyc
Size

47KB
MD5

d1efe803784a2719f345ed13431b660b
SHA1

6b62f7e9892f38e18b28c764aa36568cd091aa4d
SHA256

8510e1309c74c9a0690018cee3607b69470f1bf58d4a696d0aac618c5edc1278
SHA512

b7b4452c2416bfbb3cd6a912a8e966536fdaaf4c97d3ed4494d78ab5adbc06c15d70e990c9eb0c92ab8b7a9133ac6a4d8a1304d635529ccb69dc73617effac85
SSDEEP

768:vxh29yquFGpyGteye3yDRBPou+eQ5It8AbGm79WxSNj4QHUzmVaSTqKoJodQ5vUv:T291uGpyD3yDRBPoJIt8AbGm79WENsQ9

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
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

916 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

916 AcroRd32.exe
916 AcroRd32.exe
916 AcroRd32.exe

pid	process
916	AcroRd32.exe

pid	process
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1264 wrote to memory of 1480	1264	cmd.exe	rundll32.exe
PID 1264 wrote to memory of 1480	1264	cmd.exe	rundll32.exe
PID 1264 wrote to memory of 1480	1264	cmd.exe	rundll32.exe
PID 1480 wrote to memory of 916	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 916	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 916	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 916	1480	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\collections\__init__.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1264

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\collections\__init__.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1480

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\collections\__init__.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:916

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

Replay Monitor

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Downloads

memory/916-82-0x0000000075291000-0x0000000075293000-memory.dmp

Filesize
8KB

Download
memory/916-81-0x0000000000000000-mapping.dmp

Download
memory/1264-54-0x000007FEFB8E1000-0x000007FEFB8E3000-memory.dmp

Filesize
8KB

Download
memory/1480-76-0x0000000000000000-mapping.dmp

Download