ced3a5d2fe45bdf9ee7a95ad64ca5034e5a23bbca315889c7f2041c4e0a973fc

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 02:40

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General

Target

$PLUGINSDIR/Base64.dll
Size

456KB
MD5

9459a28dbb2752d59eaa8fbb5cf8c982
SHA1

4ad7eb230cf6d05df967037225fa19dd385bf7cb
SHA256

4688dcd01db816485a770cb8fc047fef9a408f3dbec5a2c83752fee115ce6963
SHA512

7dff6414f4215aa4c7a168158b4ac5dd422c7dd35c6af58bce658c6bf9bf5a3545a5ee0db5f5d47a17c7ae53cb54551b98b492137e36c73e684b2041d775cd97
SSDEEP

6144:NbK5zygAJ/kzt5KdaoOj4uhorVoK9omsgL204E0bm+J7iOi6rG:5KlnAJ/CtkgPlSVoVgLYbxJ7iOi

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2692	2616	WerFault.exe	84

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 2988 wrote to memory of 2616	2988	rundll32.exe	84
PID 2988 wrote to memory of 2616	2988	rundll32.exe	84
PID 2988 wrote to memory of 2616	2988	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2616
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2616 -s 600
    3⤵
    - Program crash
    PID:2692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2616 -ip 2616
1⤵
PID:3244

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/2616-0-0x0000000010000000-0x00000000100A0000-memory.dmp

Filesize
640KB

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memory/2616-1-0x0000000010000000-0x00000000100A0000-memory.dmp

Filesize
640KB

Download