31475717735f9aee20def2a4044b42a52cb92e8cf885b92a042099a273688135

Analysis

max time kernel
300s
max time network
31s
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/numbers-to-string.py
Size

17KB
MD5

d139e5574623629a158c7cbd0c47b6a6
SHA1

5f6a403b2c0341d917a8e9c9ab84dc76fc9199b2
SHA256

332822ca13b283da92f399ac407ab0a99ab18df32e5996cee9386be54ba8a225
SHA512

1d4dfee764c3fc0b1d9041599654b6e6dc55df40ab96b0517654abc5bb74f6b707fac964946412ea03892a5d573e61435d958315528a7c0490adbf07ac78bf26
SSDEEP

384:QFU0mcbIZyAFURaIZCYbthrkE8JrnutrZ9GjFa8B:yBmcbIZyAFerAE8tUEjFa8B

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 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1368 AcroRd32.exe
1368 AcroRd32.exe
1368 AcroRd32.exe

pid	process
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1436 wrote to memory of 876	1436	cmd.exe	rundll32.exe
PID 1436 wrote to memory of 876	1436	cmd.exe	rundll32.exe
PID 1436 wrote to memory of 876	1436	cmd.exe	rundll32.exe
PID 876 wrote to memory of 1368	876	rundll32.exe	AcroRd32.exe
PID 876 wrote to memory of 1368	876	rundll32.exe	AcroRd32.exe
PID 876 wrote to memory of 1368	876	rundll32.exe	AcroRd32.exe
PID 876 wrote to memory of 1368	876	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\tools\numbers-to-string.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\tools\numbers-to-string.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:876

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\numbers-to-string.py"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1368

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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