2de119b465a2e51cbab3293b51b419c49d6da1f497c68e17549839e0f6ae2a9b

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17/08/2024, 03:08

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General

Target

$SYSDIR/avutil-lav-51.dll
Size

198KB
MD5

33b73c93f73e7d2dbc2b23218e8d69e6
SHA1

137655c52cb513e74e35071df0560ab8a4164368
SHA256

dd2a525abafb589cf0e53f3f75da66d609fad986a0af74c38c9efccd8f064a5f
SHA512

7c5a91059b0599c5d5143746766c62e748d685c8c0247ee5bff870031a1d68e460b694f2a724a131cc119da68f72708a234f6534628eb2f75c887fe48df2d83d
SSDEEP

3072:VXteRjGeo1f6HzbQ0EQL5kEeiCTZ+GpKf/+dPVbXV78vbH:BtQKn1f6HzEWkviI7sfWdPVbXGvbH

Score

3^/10

discovery

Malware Config

Signatures

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 7 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31
PID 2688 wrote to memory of 2544	2688	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avutil-lav-51.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$SYSDIR\avutil-lav-51.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544

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

Windows 7 deprecation

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