2bc90adf8cb7bffb4cbe89edc61c8521033807272af39a22165a846db2efbd48

Analysis

max time kernel
122s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 00:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
2148	2104	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2936 wrote to memory of 2104	2936	rundll32.exe	30
PID 2104 wrote to memory of 2148	2104	rundll32.exe	31
PID 2104 wrote to memory of 2148	2104	rundll32.exe	31
PID 2104 wrote to memory of 2148	2104	rundll32.exe	31
PID 2104 wrote to memory of 2148	2104	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 292
    3⤵
    - Program crash
    PID:2148

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

Loading Replay Monitor...

Downloads

memory/2104-0-0x0000000077E5F000-0x0000000077E60000-memory.dmp

Filesize
4KB

Download
memory/2104-1-0x0000000075290000-0x0000000075341000-memory.dmp

Filesize
708KB

Download