ab9b2ab84fd22f3bdb4f19e72b13a0d44709bf3669420a99f4dab39758f9431f

Analysis

max time kernel
90s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 20:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

msvcr100.dll
Size

750KB
MD5

2b92a88e329f4845d31941967a3baa90
SHA1

bbf341e7ed9947de0b5d84d93ca0bc4c8beb5500
SHA256

649a7ab8e3b5c0940812e40eafc8f004979bb48bfc8f4bc7db9f2cbcdd715344
SHA512

b94862e3f516402317a5467c6e0ff3dd23a967d90dae87dec1687157e43978c2d73c24fee71b4febeada54bb433ea4fcd16568d02fde1c4f9f50f6d7ba02408a
SSDEEP

12288:dmCy3GUj/QGrB4F+FVW1rWNivf9JNxpEtwIy2i3Hlr0n1:dmCy3LQA4F8U1rWNivf9hpEam1

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3580	3388	WerFault.exe	84

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 3992 wrote to memory of 3388	3992	rundll32.exe	84
PID 3992 wrote to memory of 3388	3992	rundll32.exe	84
PID 3992 wrote to memory of 3388	3992	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 600
    3⤵
    - Program crash
    PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3388 -ip 3388
1⤵
PID:316

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

Loading Replay Monitor...