5fd718ccfbc7932a3597192ee264d4fb53bbf71e9e30573ed382d34095111990

Analysis

max time kernel
148s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/08/2026, 12:24

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General

Target
vyinum.dll
Size 828KB
Sample260801-plagraaq21
SHA256 5fd718ccfbc7932a3597192ee264d4fb53bbf71e9e30573ed382d34095111990
MD5 2f4244346ba5777117c0943063bde209
SHA1 a296b0260a2080ad6516c53e6e30c8f9ac7f992d
SHA512 c0a11fb5c2a8e6e47c3e9ee4a26327770cc3e3cec92be2d60ca85bac0db23bb5cb48572c19e0eb88e6681859db5b91aef87f75d35c064091014ff90a46ab7050
SSDEEP 12288:E0FMqViYh3MhVh9tb7CFWrmAdsDTnN88J1HgIMENpoO:rLV3MHjJ+We3NvuIMENSO
TLSH
T1F105CFA435C6F431E07250358F49DAF80729BD159F7A8A8B37E01F4F6D7E9826A31722
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5228	4580	WerFault.exe	87

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 3124 wrote to memory of 4580	3124	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\vyinum.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\vyinum.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4580
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 688
    3⤵
    - Program crash
    PID:5228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4580 -ip 4580
1⤵
PID:4160

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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