1d8efd633d8ae1fe4cf315638cb06ab51eecff29912a09337ddf41f211405832

Analysis

max time kernel
838s
max time network
839s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16/06/2024, 16:32

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General

Target

NullRAT/RAT.py
Size

7KB
MD5

53b9d54a9581a7e043e8267abfeee7bf
SHA1

621ee8223b64079c5aa68036d8cfc3e7fac2f6fc
SHA256

a4db7a6f8861e3f554bfb9ced2912d8fe0bbaf74f08d507ee159d1775bfb7990
SHA512

a91a90fe3a6c290f6a2aed0cc6e1bee7b2a46f50f8294379c5ff3889985a5a1a886e81c10a4e04235e6cea587a78c9ec3024d4d0d5dd9573cb25a7bce4229491
SSDEEP

192:nOdJkyK1Irlev/Vko1VODfqifRgzTkv2+1M0hW/KPk+O9:nODlev/VNVoRgPkO+10

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_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-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2792	AcroRd32.exe
2792	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2144	3068	cmd.exe	29
PID 3068 wrote to memory of 2144	3068	cmd.exe	29
PID 3068 wrote to memory of 2144	3068	cmd.exe	29
PID 2144 wrote to memory of 2792	2144	rundll32.exe	30
PID 2144 wrote to memory of 2792	2144	rundll32.exe	30
PID 2144 wrote to memory of 2792	2144	rundll32.exe	30
PID 2144 wrote to memory of 2792	2144	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\NullRAT\RAT.py
1⤵
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\NullRAT\RAT.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2144
- - 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\NullRAT\RAT.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
97ae1879c4870f6e68fdb1d15497a276

SHA1
62f0cfe8c99825254f2045f7710d114369b957c5

SHA256
ee060136f6676c894c15c39365410f8b5e91ef3c4ba272281696962f474c8ad7

SHA512
1b36b38ac5ce81514718373d7ff4fd539876fae16779d6d94d79f1b452797ad38eecd7815c99085ec924cfe5608c459dbd91d89111b21911d7952cfd9260549e

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