59e4fac681f8e2e2db47821e1d1e1d76713363dadd006ee060d396b363c43e27

Analysis

max time kernel
121s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 14:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

windows/loaders/bios_image.py
Size

3KB
MD5

3831299022299adc5c9f5c2ec96bc378
SHA1

1c73e7b776a528fe7799df68cce64b1592efd9ae
SHA256

4a1c5f21352e16ef0fa83b57f5ee8d9726c3e55a0671c25b5bdcfa9031b1ec10
SHA512

5909d0c48ac445ea3838bc4023c03617dd6bbc8958708660187dcc44e82590e4330196119ab43588845583d441d7636c61c27228f6dd2ea6ca3e8b47cb534a20

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-1-5-21-1488793075-819845221-1497111674-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2980	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2980	AcroRd32.exe
2980	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2732	2280	cmd.exe	32
PID 2280 wrote to memory of 2732	2280	cmd.exe	32
PID 2280 wrote to memory of 2732	2280	cmd.exe	32
PID 2732 wrote to memory of 2980	2732	rundll32.exe	33
PID 2732 wrote to memory of 2980	2732	rundll32.exe	33
PID 2732 wrote to memory of 2980	2732	rundll32.exe	33
PID 2732 wrote to memory of 2980	2732	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\windows\loaders\bios_image.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\windows\loaders\bios_image.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2732
- - 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\windows\loaders\bios_image.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2980

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

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
b8591fbe98aeebc5a7dc5016a1065e77

SHA1
6320a9904aad339ae326f641042ca4c4837f690f

SHA256
7f5ef4271fea474c6d489b8fc6b8acd47234b6f6803ec5e345e275fd080d2844

SHA512
585a898cf31195d73af052c92dbadee5a6b4ac4ec34365103c613cfbc30f4554ed038ea7c5fa31eafde82e56b2b68f9958b1af1c4d4587d85d0b3f9153d3db43

Download Submit