c112b2f07061632926d7d8f68614de49148fb529a668dc11909edde99bbc543d

Analysis

max time kernel
123s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-02-2025 14:45

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General

Target

mbcs.py
Size

1KB
MD5

037692440a6148a06d5be8de5cd26197
SHA1

1d70e4bd36be1c153b5ef3c21e060f4da12211c8
SHA256

f6ed445ed537c9f856d8defe8b56505727737d0dc9348d0a877abedab4bdd864
SHA512

07950d19132d12b65f641c61e473b0316ecb3307a617057626ae25e9c77804331ad7286b29a20438e1a63bd201e19e4f7bb4eb3f9b6b507e9c77b2534685e12f

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-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2724	AcroRd32.exe
2724	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2852	2860	cmd.exe	31
PID 2860 wrote to memory of 2852	2860	cmd.exe	31
PID 2860 wrote to memory of 2852	2860	cmd.exe	31
PID 2852 wrote to memory of 2724	2852	rundll32.exe	32
PID 2852 wrote to memory of 2724	2852	rundll32.exe	32
PID 2852 wrote to memory of 2724	2852	rundll32.exe	32
PID 2852 wrote to memory of 2724	2852	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\mbcs.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\mbcs.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2852
- - 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\mbcs.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2724

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
c7bf44a2708f4bacec68d8a86670aece

SHA1
1405755dfbfab3e309384dc38ae8f2e7e1020466

SHA256
a49b98c0b136023dd824721a5ec70e3f403d5fb46d34306cb3cd5fbc1fcea73b

SHA512
d5e0fbefb915f8b73505faa5808a292b09857d1c1a90bbc13af8743d916f7130c9ea8398910b84d690e806e30725859f57533c66439358097e74d28230eea136

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