2de119b465a2e51cbab3293b51b419c49d6da1f497c68e17549839e0f6ae2a9b

Analysis

max time kernel
140s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17/08/2024, 03:08

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General

Target

$SYSDIR/avcodec-lav-53.dll
Size

6.1MB
MD5

b0e35230800d6c0242cbcdb59b8756e8
SHA1

7599be00ed9146a12be932471f94b3f9e89f122c
SHA256

a65265502a0050a8ae7f432a3629c299d5d8d1ebe7118dc8117026e4d3b22970
SHA512

d0751608e7eab4fa61e594ecf43b6a48d7a37f6ec064da691f195b11ee5393bdd89748020b892f2de0717ca05c815d3d474aecc5b8b1b8d2473dc008b9e5cfe3
SSDEEP

196608:YzQpdeTc29Dj5gyoiP34ddi111oz/R26cmne/+Z9lpP7Ilr:Y0pEjY5Ll5lpElr

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2464	3000	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 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 1400 wrote to memory of 3000	1400	rundll32.exe	30
PID 3000 wrote to memory of 2464	3000	rundll32.exe	31
PID 3000 wrote to memory of 2464	3000	rundll32.exe	31
PID 3000 wrote to memory of 2464	3000	rundll32.exe	31
PID 3000 wrote to memory of 2464	3000	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avcodec-lav-53.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avcodec-lav-53.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 224
    3⤵
    - Program crash
    PID:2464

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/3000-1-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-7-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-9-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-5-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-11-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-15-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-16-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-28-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-29-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-71-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-69-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-68-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-66-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-64-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-62-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-60-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-58-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-56-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-54-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-100-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-52-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-50-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-49-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-48-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-46-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-44-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-42-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-40-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-38-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-36-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-33-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-31-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-27-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-25-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-70-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-67-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-65-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-63-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-61-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-59-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-57-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-55-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-51-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-47-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-45-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-43-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-41-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-39-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-32-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-30-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-26-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-24-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-23-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-22-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-21-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-20-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-19-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-18-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-17-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-14-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-13-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-12-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-3-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-8-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-2-0x0000000066C0F000-0x0000000067076000-memory.dmp

Filesize
4.4MB

Download
memory/3000-0-0x0000000066C00000-0x00000000676AD000-memory.dmp

Filesize
10.7MB

Download
memory/3000-103-0x0000000066C0F000-0x0000000067076000-memory.dmp

Filesize
4.4MB

Download