149bc7bb666f2eabcf946822bd316709ddeeef787f059687415f98c71ad47783

Analysis

max time kernel
140s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 12:06

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General

Target

rva11.dll
Size

11KB
MD5

188990101a629d59f5435a64c19b655e
SHA1

c8fc89b69858fceeeb4f78a3d20cee3f6a0beb42
SHA256

755ea4c08bae90f85e93cea3865580400c5dd9fe238dde5c59dfd893dcecf4f4
SHA512

1e0f096551159532ad4d773639792841710c48eacca02b46c05be2c90e1e6b3f87470a3a379461694ffdfbe76509f1f7876f5c045d4bcee250e5905632506597
SSDEEP

192:LbJZqY7dW36qTJPHjd9kAlndYFzLVaAVNQdIHG2SRUt7:SRqYPHjjdndUzLVhcRY7

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
732	756	WerFault.exe	85

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 behavior: EnumeratesProcesses 8 IoCs

pid	Process
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe
756	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 756	4276	rundll32.exe	85
PID 4276 wrote to memory of 756	4276	rundll32.exe	85
PID 4276 wrote to memory of 756	4276	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rva11.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\rva11.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 680
    3⤵
    - Program crash
    PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 756 -ip 756
1⤵
PID:2708

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

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Downloads

memory/756-0-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

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memory/756-1-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download