f597e857bd8ed3adb8d0fca17be02ac87696b3dd03c1ba5bd66367e067161fa0

Analysis

max time kernel
108s
max time network
128s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
04-01-2025 14:00

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General

Target

platformBinary32/bin/instrument.dll
Size

114KB
MD5

5bfa85d137104aa8a56ab0b257e4fc7a
SHA1

093413032912d9fa21711868fd323d0169bd7c72
SHA256

c731e494bd9b4696cd5da5947ec4331b0ce6982c7406e21bc883aa095f6f3d3c
SHA512

7a26fedc02a6652fe06416fc35d2dd0f50cfd78376e69b35b40771b6fcc18fef226075ecfbca2cfb77e2d8044260ce81c0fbfe92f03d5746aac724e5b46dae50
SSDEEP

3072:IyqHyVOqh/8fMu3OcdxKYreYuDUfTBfrzWKUZ:Iyqy18f33OUcYrePDUfTBsZ

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1204	1124	WerFault.exe	81

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 3844 wrote to memory of 1124	3844	rundll32.exe	81
PID 3844 wrote to memory of 1124	3844	rundll32.exe	81
PID 3844 wrote to memory of 1124	3844	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\platformBinary32\bin\instrument.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\platformBinary32\bin\instrument.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1124
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1124 -s 604
    3⤵
    - Program crash
    PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1124 -ip 1124
1⤵
PID:4744

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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