0568e45dfc54c298f485c20a0a309764fc0008fd525e20e524d8ab00c348056e

Analysis

max time kernel
360s
max time network
363s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 14:53

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General

Target

avcodec-57.dll
Size

10.5MB
MD5

956482fb13bf0a96fc5e20efaeaccae7
SHA1

87d42855ba7c01a750102e4659d079d32c6c4b3c
SHA256

974e64cfeaa3f7eb0545e048a117e9201bb3d3573c83edf7b62b3d32ec7a06ca
SHA512

a25106f6cc10e41baed145f6735aa6c32c540d96ad8a6a1a79a0f808ec302b4dd900025e45215954400b5d97505aa135f0c3b41c913f7f729316d14209268503
SSDEEP

196608:2w7bvC7CxHcacQscpfg2eqFsEs5ts5Mr90IorUrHepPWgc:vCUHc3QJC2rUrHepNc

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1076	2168	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 3048 wrote to memory of 2168	3048	rundll32.exe	30
PID 2168 wrote to memory of 1076	2168	rundll32.exe	31
PID 2168 wrote to memory of 1076	2168	rundll32.exe	31
PID 2168 wrote to memory of 1076	2168	rundll32.exe	31
PID 2168 wrote to memory of 1076	2168	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 224
    3⤵
    - Program crash
    PID:1076

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/2168-0-0x0000000000220000-0x000000000026E000-memory.dmp

Filesize
312KB

Download
memory/2168-2-0x0000000000B50000-0x0000000000C25000-memory.dmp

Filesize
852KB

Download