3d4d1c3f28b7b10b13d50b9812fc71d832da575f1aa6f2d411b7747979194d2e

Analysis

max time kernel
91s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 10:21

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General

Target

$PLUGINSDIR/chbtjlxnc.dll
Size

32KB
MD5

04e7cb86dc41703a5cf85fc5876ca52c
SHA1

c1b4b144bcfbb9cb60f0feb98c74aeb1ca83abea
SHA256

f151cb8d01bd600340425aed959eff4e663db50941ccba81bee3d94f5ae4e486
SHA512

7c38ab8869747baa87473804cca219969534b71cfdd91b01e2a63b84fc7964fbdbbff7f56f336c2d5bac4031e8ede1e39e1d723854f3f7713b9d1ec37f7d3646
SSDEEP

768:jm79oRz5DjnPKkSnu9OfiIkuy8nEVFCvLSVrSIaonoIxGRBUxNku6:SPqFZdaontxGUxNZ6

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4752	1968	WerFault.exe	83

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 7 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 1968	2876	rundll32.exe	83
PID 2876 wrote to memory of 1968	2876	rundll32.exe	83
PID 2876 wrote to memory of 1968	2876	rundll32.exe	83
PID 1968 wrote to memory of 3928	1968	rundll32.exe	84
PID 1968 wrote to memory of 3928	1968	rundll32.exe	84
PID 1968 wrote to memory of 3928	1968	rundll32.exe	84
PID 1968 wrote to memory of 3928	1968	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\chbtjlxnc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\chbtjlxnc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\chbtjlxnc.dll,#1
    3⤵
    PID:3928
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 664
    3⤵
    - Program crash
    PID:4752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1968 -ip 1968
1⤵
PID:2560

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

Replay Monitor

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Downloads

memory/1968-0-0x0000000010008000-0x000000001000A000-memory.dmp

Filesize
8KB

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