82ff16c76aea25fded60617966fb154a7f221dc191c8d4bb5e4b8d1eee2a69dc

Analysis

max time kernel
131s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 06:38

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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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 5044 wrote to memory of 4600	5044	rundll32.exe	rundll32.exe
PID 5044 wrote to memory of 4600	5044	rundll32.exe	rundll32.exe
PID 5044 wrote to memory of 4600	5044	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\pthreadVC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5044

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:4600

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4768,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=948 /prefetch:8
1⤵
PID:1780

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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