43efb0b5f59b614a355ba8e6c8db2b6cc36363a253a0bfbb8026d2c2f8712b77

Analysis

max time kernel
93s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 22:01

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General

Target

avutil-fb2k-55.dll
Size

516KB
MD5

a29ad276b594126a8f0927727140f051
SHA1

0f4635bfb38c1349fdb3930890574f6baa37bc61
SHA256

416c300aa4f3f58899c20f03de3733e1925e0412b29cdd2f8e57095335221963
SHA512

358bafa49488f5883c10f828f077c66ae8adb0df71a508212fcf2997110ee00fc7cdb0e2c202463a7c7d1251485938e1ef01969faf2faecbe6d30ae2e505ee39
SSDEEP

12288:PYLwu2P2ejUI6TrhnXwBXekxr5dm9Fu/s15u0PSGZZPx4TK+38D1jJlRpt9rWcbt:PYLwulPJprWcb6hn4K8

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3448	1140	WerFault.exe	82

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 3760 wrote to memory of 1140	3760	rundll32.exe	82
PID 3760 wrote to memory of 1140	3760	rundll32.exe	82
PID 3760 wrote to memory of 1140	3760	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avutil-fb2k-55.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avutil-fb2k-55.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1140
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1140 -s 612
    3⤵
    - Program crash
    PID:3448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1140 -ip 1140
1⤵
PID:4292

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

Replay Monitor

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Downloads

memory/1140-0-0x00000000748B0000-0x000000007494D000-memory.dmp

Filesize
628KB

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