2b0a81c38f8a50530de18c0ff5f207739262155a4a309eac3d10f24e5079e7d1

Analysis

max time kernel
430s
max time network
1153s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
11/11/2024, 17:29

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General

Target

$SYSDIR/pthreadVC.dll
Size

52KB
MD5

f04a90f917ba10ae2dcbe859870f4dea
SHA1

6668ebe373ce58c33017697c477557653427e626
SHA256

99c61abf41c3aec38cab3ed6270adbca9a247bbf5f9aa9d29ecb0659a5527f48
SHA512

aec29301b9ce311b27f1590b0e0c4121acdc183a30b570e087d77b7035684f02a6dfbdee950c37f3023b32e2ea5a075a5fbe6d18a2804da9490d4959733bb516
SSDEEP

384:hSvfC8Vv0Vy7ojuq7GQcdWTc4zU+GFronD/yD5rBEe0kiH32Jp9AhOW:wt+TGQcdWYdMG59EeJiH3YzW

Score

3^/10

discovery

Malware Config

Signatures

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 5316 wrote to memory of 788	5316	rundll32.exe	77
PID 5316 wrote to memory of 788	5316	rundll32.exe	77
PID 5316 wrote to memory of 788	5316	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\pthreadVC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\pthreadVC.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:788

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

Windows 7 deprecation

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