9553eed5c7ccd78596656a5bffef6d8c2422fcc427e2a72fdf8598ec1f849101

Analysis

max time kernel
900s
max time network
446s
platform
windows11-21h2_x64
resource
win11-20251223-en
resource tags

arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
submitted
24/12/2025, 11:52

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General

Target
overlay.dll
Size 6.9MB
Sample251224-n17kcsby3c
SHA256 b83183a8414498bf9bab9d2ed8b47fe169e6369a262da4fa18965ccc96b676ab
MD5 9e7ed637f226967cdbe87cec3f9c0d28
SHA1 e508a43d68d7a812886478817be307c5b1633a75
SHA512 c44da42c025138a20c1676fb2707f238ad9a9c694ce5ba9e362c0ee9c63de4612c934be1b97551dc82823fa95c3dcffc82ab61be6a14e395e7c82f48682c2864
SSDEEP 98304:mPxx5sNO95LhUIBPPnz54z23tVihEkcJ6k2ZUmVQ:gxv8O95L2APntA23t0ITYQ
MD5 SHA1 SHA512 SSDEEP

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 behavior: EnumeratesProcesses 34 IoCs

pid	Process
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe
4204	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 4204	4908	rundll32.exe	76

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\overlay.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\overlay.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4204

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

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Downloads

memory/4204-0-0x0000000000B80000-0x0000000000B81000-memory.dmp

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memory/4204-1-0x00000000760F6000-0x00000000760F7000-memory.dmp

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