015f30080a8a8ef5c9ee8751400100e3c8abb48d5c8ab5208a48daae39d22e9f

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
22/04/2026, 00:18

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General

Target
$PLUGINSDIR/Base64.dll
Size 3KB
Sample260422-als7jaev9p
SHA256 015f30080a8a8ef5c9ee8751400100e3c8abb48d5c8ab5208a48daae39d22e9f
MD5 20dc0e30cc3a715e100f8662d09b71a9
SHA1 c40b9158a8c8e28d4ce7ba73a6f2e69368afc389
SHA512 2e455dfa373f91b563dedd2e043f8730e686bb1a6ae45c488e5ea5b9cbb0c7658b767b2e751008757c62537f8b70396aae79721dcbf13e493daaf6cebc5500bd
TLSH
T1A271EB9E8F1B4423E1058B3486C725D53FFD9A5735C3693FCF900806A9811FCA092EB1
MD5 SHA1 SHA512 TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4396	4128	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 use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 616 wrote to memory of 4128	616	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Base64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:616
- 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:4128
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4128 -s 600
    3⤵
    - Program crash
    PID:4396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4128 -ip 4128
1⤵
PID:4660

Network

MITRE ATT&CK Enterprise v16

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/4128-0-0x00000000009C0000-0x0000000000DFC000-memory.dmp

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