0568e45dfc54c298f485c20a0a309764fc0008fd525e20e524d8ab00c348056e

Analysis

max time kernel
427s
max time network
435s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 14:53

Target

_gsf.dll
Size

65KB
MD5

af0bcb5013473bb717cc9caeb4125c8b
SHA1

8259f5bf66751e2d0f6292a813ae04e1908d1c10
SHA256

804812472df894901f76f472c1bed3c539600d0dcf9af52c403523515687b2a2
SHA512

f177cfa81782c3c7bd7c8ff68b12c060abdf54e568309849a6acf793773ef358de6649d6550af3b0ab9d6db9d9a5dfa894c585707603da04a9930aa2299662c5
SSDEEP

1536:EogK8BDoFNALxrrjSxFtPTdomdwsajz388:EogjZaNorrjS9bdomdwsOz388

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4780 3880 WerFault.exe rundll32.exe
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

pid	pid_target	process	target process
4780	3880	WerFault.exe	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 4668 wrote to memory of 3880	4668	rundll32.exe	rundll32.exe
PID 4668 wrote to memory of 3880	4668	rundll32.exe	rundll32.exe
PID 4668 wrote to memory of 3880	4668	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\_gsf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\_gsf.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3880
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 664
    3⤵
    - Program crash
    PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3880 -ip 3880
1⤵
PID:4792

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/3880-0-0x0000000002890000-0x0000000002A33000-memory.dmp

Filesize
1.6MB

Download
memory/3880-2-0x0000000002A40000-0x0000000002A52000-memory.dmp

Filesize
72KB

Download