a73f041afa6413f0fd67e9672bc4b956c9be1ca2f4de3bcf6455d5e0d3c67b89

Analysis

max time kernel
119s
max time network
128s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 13:37

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General

Target

cryptic tool/util/19_MassDM/massdm.py
Size

1KB
MD5

12b9f6c6c536d3ab584c557b39678c4a
SHA1

e5f6a1ea1b681f7e26b30f5b6975fa869933e2aa
SHA256

6fd04eb18cf76e30f0ddc6eea3c40b7db0185d164373fab188b1b231075bc514
SHA512

634ba97986b544c11706a181a5dbf573294afc646a196e316cac08653d99a0d7efa69ee03b5b19368378e3336c922550f710bf643f82a3b7c32220472809f8c4

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-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2636	AcroRd32.exe
2636	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 2724	1548	cmd.exe	29
PID 1548 wrote to memory of 2724	1548	cmd.exe	29
PID 1548 wrote to memory of 2724	1548	cmd.exe	29
PID 2724 wrote to memory of 2636	2724	rundll32.exe	30
PID 2724 wrote to memory of 2636	2724	rundll32.exe	30
PID 2724 wrote to memory of 2636	2724	rundll32.exe	30
PID 2724 wrote to memory of 2636	2724	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\cryptic tool\util\19_MassDM\massdm.py"
1⤵
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\cryptic tool\util\19_MassDM\massdm.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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\cryptic tool\util\19_MassDM\massdm.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2636

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
37680337b57ab055d2dd13423d4bb00a

SHA1
69a543d49029d3764217453680a0a11a6dc1bca3

SHA256
6dc124e21f8e435b37b58701455eefd1c4cd35507fafb7a2ebf25b48d1c31c57

SHA512
436e88da95c0838d8de31a5ca5d2417f85de5bc0291b16b2ea6a9b8fff331b962e45589c9f0141305d28edda23e17f696a9ef3168cfcc82a96ccc81b0dea2bbc

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