0568e45dfc54c298f485c20a0a309764fc0008fd525e20e524d8ab00c348056e

Analysis

max time kernel
420s
max time network
424s
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

avcodec-57.dll
Size

10.5MB
MD5

956482fb13bf0a96fc5e20efaeaccae7
SHA1

87d42855ba7c01a750102e4659d079d32c6c4b3c
SHA256

974e64cfeaa3f7eb0545e048a117e9201bb3d3573c83edf7b62b3d32ec7a06ca
SHA512

a25106f6cc10e41baed145f6735aa6c32c540d96ad8a6a1a79a0f808ec302b4dd900025e45215954400b5d97505aa135f0c3b41c913f7f729316d14209268503
SSDEEP

196608:2w7bvC7CxHcacQscpfg2eqFsEs5ts5Mr90IorUrHepPWgc:vCUHc3QJC2rUrHepNc

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2756 4268 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
2756	4268	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 452 wrote to memory of 4268	452	rundll32.exe	rundll32.exe
PID 452 wrote to memory of 4268	452	rundll32.exe	rundll32.exe
PID 452 wrote to memory of 4268	452	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4268
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 604
    3⤵
    - Program crash
    PID:2756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4268 -ip 4268
1⤵
PID:4132

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/4268-2-0x0000000002270000-0x0000000002345000-memory.dmp

Filesize
852KB

Download
memory/4268-0-0x0000000002220000-0x000000000226E000-memory.dmp

Filesize
312KB

Download