39a5aeebde6093ac053fa0f42203f175ad7338fc875e959c6cd5361f1a4f9d0b

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/08/2026, 11:07

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General

Target
JKTool/WTCommLib.dll
Size 86KB
Sample260820-m8f7psythw
SHA256 39a5aeebde6093ac053fa0f42203f175ad7338fc875e959c6cd5361f1a4f9d0b
MD5 dda04adf87e317f29436a214bb3d0ef4
SHA1 9614cd24003bb405315b2a47814139d390f4e977
SHA512 5713eb1d73a4071fd77a547df188e6238a9c1e3841b9627f77ddc29883a152c7afd569a32eb7e85f1cb238df96693fc033fb5ff0e13dcde9504c7b995388f729
SSDEEP 1536:7tD7f8TG3aE/UVzNdNLa1qlSUBRwkiVUg6g2pqkdSbDKr+pQfr0XdF0Czxhs4dVt:7tDITuaE/UTOogUBRwkiVt6g2pqkdSbR
TLSH
T1B9834A41BE8350F5E8CDF7312A6D6732D8E9AE67007949D36325CC63147332B3B26A62
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4428	932	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 1 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 932	4104	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JKTool\WTCommLib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JKTool\WTCommLib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 932 -s 600
    3⤵
    - Program crash
    PID:4428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 932 -ip 932
1⤵
PID:3108

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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