dac651edd381388ce17e6c5a7c5f41c66a42530e6ce82e58745adbd3c2570b14

Analysis

max time kernel
147s
max time network
158s
platform
windows11-21h2_x64
resource
win11-20250217-en
resource tags

arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
submitted
18/02/2025, 17:53

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General

Target

mars/public/vcruntime140.dll
Size

81KB
MD5

7587bf9cb4147022cd5681b015183046
SHA1

f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256

c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA512

0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
SSDEEP

1536:AQXQNgAuCDeHFtg3uYQkDqiVsv39niI35kU2yecbVKHHwhbfugbZyk:AQXQNVDeHFtO5d/A39ie6yecbVKHHwJF

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4404	488	WerFault.exe	79

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	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 488	2564	rundll32.exe	79
PID 2564 wrote to memory of 488	2564	rundll32.exe	79
PID 2564 wrote to memory of 488	2564	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mars\public\vcruntime140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\mars\public\vcruntime140.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 452
    3⤵
    - Program crash
    PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 488 -ip 488
1⤵
PID:5000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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