2bc90adf8cb7bffb4cbe89edc61c8521033807272af39a22165a846db2efbd48

Analysis

max time kernel
93s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 00:04

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General

Target

cr.dll
Size

677KB
MD5

5af02569e27b0aedc942f9ccbd485903
SHA1

c894f99282c6fc8250736cd734371f8ff5da7c12
SHA256

2f8667a3c2ed16c66f3c01cfcd38c86b5529e48cf0942b0b6ebf6ddd3eec377f
SHA512

04c51c56e68af3d6af27543bf91c989f0e3780ba71a11209726688c23cd8155f1e6d0015f0ac59055a1d6ec8b3efa90ddcfa550251d6516136b41aa85fc09e02
SSDEEP

12288:UCyNJAPjd9/atFGFURqQmBH0srwuYO94ozaZBM:Ul6hsRmB1wN

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1680	3964	WerFault.exe	82

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 508 wrote to memory of 3964	508	rundll32.exe	82
PID 508 wrote to memory of 3964	508	rundll32.exe	82
PID 508 wrote to memory of 3964	508	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 676
    3⤵
    - Program crash
    PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3964 -ip 3964
1⤵
PID:1072

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

Replay Monitor

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Downloads

memory/3964-0-0x00000000774C2000-0x00000000774C3000-memory.dmp

Filesize
4KB

Download
memory/3964-1-0x0000000074E70000-0x0000000074F21000-memory.dmp

Filesize
708KB

Download