3992dbccf18e03c0183f61cc8bddd4bcef7c3617fbb3e399b355d20bbf4589ce

Analysis

max time kernel
149s
max time network
97s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
21/04/2026, 19:35

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General

Target
~/rqhbff2.dll
Size 63KB
Sample260421-ya35csbs9p
SHA256 3992dbccf18e03c0183f61cc8bddd4bcef7c3617fbb3e399b355d20bbf4589ce
MD5 9fc0a78ea1bed4abb0fe25093d906acf
SHA1 b21737389318f70a5174eb2fec352b37483e34a9
SHA512 28b54caf7eaf847518a2b5ae7aac20d5b1578a24facc5bebdc05eb0c77909667e779d69b3e44a2083487d2642a7dece9636861a5e8d6c5165a9bbfe456bfa899
SSDEEP 1536:KmKy1UIKgEqRPwHHnToIfiIOjIOy3VEKV:NKYwHHTBfAFy3qs
TLSH
T1C8538C06EA809273C5F40A79D5EACA6D8E3A32500BAD91E32DDD6BD02D047F573752CE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2344	1768	WerFault.exe	80

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 1 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 1768	4816	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\~\rqhbff2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\~\rqhbff2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 452
    3⤵
    - Program crash
    PID:2344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1768 -ip 1768
1⤵
PID:4880

Network

MITRE ATT&CK Enterprise v16

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 v16

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