16057f42fa1a8e8bc8c299bfeda91df4849100a0f998d45db24d4df71e9b324c

Analysis

max time kernel
102s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 15:43

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General

Target

download_us.py
Size

2KB
MD5

303a002f7a9caab24a91b6f7db993c33
SHA1

5dfd8749c35d85fb895d8ca3e5762390619af020
SHA256

16057f42fa1a8e8bc8c299bfeda91df4849100a0f998d45db24d4df71e9b324c
SHA512

555803adf0da73cd9fad3d738b4e144fb941669117d9e2f035755c33595b4bb05f40a02cd0636828fb6158d8f65db563d083f8dbe93d7b89866d597366e9b165

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\py_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_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
3024	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3024	AcroRd32.exe
3024	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2844	1756	cmd.exe	30
PID 1756 wrote to memory of 2844	1756	cmd.exe	30
PID 1756 wrote to memory of 2844	1756	cmd.exe	30
PID 2844 wrote to memory of 3024	2844	rundll32.exe	31
PID 2844 wrote to memory of 3024	2844	rundll32.exe	31
PID 2844 wrote to memory of 3024	2844	rundll32.exe	31
PID 2844 wrote to memory of 3024	2844	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\download_us.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\download_us.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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\download_us.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
3509ab7b667fb6bc08923bdfeed818e0

SHA1
fcd6ea6573f425f3bfad0a5129237d7367dfa19c

SHA256
dc96ac18f695ec292a3f4f29eb253ea6d043e37c9f2b24c6af4de7da5d45e30d

SHA512
7188facdd6ef11778c7a74f55a4b22eace201eeb40081a1914799d6c790960909e25ea3d1842d6adfe120ed086a07d84253f62efa4e0b58388a32477bf03ab7e

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