8ae976c8b28baa222b4fd527cccbad2d1102ed21c68f9082c53835fde94c2397

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 13:40

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General

Target

encodings/bz2_codec.py
Size

2KB
MD5

2005c838af7a6c6256dbdd05a89678a7
SHA1

765c14c82af034c096d9ce9f5937b09ea49f48bc
SHA256

1181a2a89102a2b1d2b2f1f4473236d5d1ececdd0be8fdaa498a3dbe21a185ab
SHA512

d074c3bf6a5997bc82f60440c81f5ae949f86ee02d08f669795f5daf071128359933813776cb49f216f6a95da4f6f8cc50a981b7f2be1ad951da40147d057546

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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2604	AcroRd32.exe
2604	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 2836	2760	cmd.exe	32
PID 2760 wrote to memory of 2836	2760	cmd.exe	32
PID 2760 wrote to memory of 2836	2760	cmd.exe	32
PID 2836 wrote to memory of 2604	2836	rundll32.exe	33
PID 2836 wrote to memory of 2604	2836	rundll32.exe	33
PID 2836 wrote to memory of 2604	2836	rundll32.exe	33
PID 2836 wrote to memory of 2604	2836	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\encodings\bz2_codec.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\encodings\bz2_codec.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2836
- - 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\encodings\bz2_codec.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2604

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

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Downloads

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

Filesize
3KB

MD5
639601526380aa056348f5d7fa8fd087

SHA1
fff551abc18a72d8fa8723f269081d03078ab676

SHA256
edbf93d956fef114ab3f524679738e9299bdbd75f1f44beb66e6b15d05466298

SHA512
6c0ded1c108aa7f8980255dc29979fe70b0505ac49abbf5eaeb0d33a8af52b3d02ac85405e1c03ab1ca818bee862b5b43cd5952116b69ad50e5884d8341e299a

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