3927e9bf483943765d06f52b5da3e3ec5fbc2ac7db70be5c863f38765427d8f6

Analysis

max time kernel
103s
max time network
105s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
09-01-2025 12:38

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General

Target

toolSync_v1/unrar.dll
Size

304KB
MD5

851c9e8ce9f94457cc36b66678f52494
SHA1

40abd38c4843ce33052916904c86df8aab1f1713
SHA256

0891edb0cc1c0208af2e4bc65d6b5a7160642f89fd4b4dc321f79d2b5dfc2dcc
SHA512

cdf62a7f7bb7a6d511555c492932e9bcf18183c64d4107cd836de1741f41ac304bd6ed553fd868b442eaf5da33198e4900e670cd5ae180d534d2bd56b42d6664
SSDEEP

6144:e2Gk6wDaKov/5qrawOZI8uN0f/UVvN3MwdZFmiVFC+OEu:e2GkNo35qrawqmG/yM8PmiO+Ol

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4268	2684	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 4820 wrote to memory of 2684	4820	rundll32.exe	79
PID 4820 wrote to memory of 2684	4820	rundll32.exe	79
PID 4820 wrote to memory of 2684	4820	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\toolSync_v1\unrar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\toolSync_v1\unrar.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 484
    3⤵
    - Program crash
    PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2684 -ip 2684
1⤵
PID:3680

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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