355df663f260cef97f4cb6b044fe18811c4c429a6b8c0fddef2230abee9f5093

Analysis

user interaction
yes
max time kernel
14s
platform
windows11-21h2_x64
resource
win11-20260911-en
resource tags

arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/10/2026, 22:27

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General

Target
Zero.dll
Size 1.4MB
Sample261017-2c8peads2l
SHA256 355df663f260cef97f4cb6b044fe18811c4c429a6b8c0fddef2230abee9f5093
MD5 92f9fd3015dadc87705a74b3962826fb
SHA1 04b4c40f29dedb8b55a8f5cb8e4d75e9206ba267
SHA512 6cc0079987cc0e07dadad4c98c26b996f8e95570bb5546010d1d574b10f9f03fdd8c59033576bc765141967e09d8d0f3682633cb2b99c25d4ea68973bb4e8d58
SSDEEP 24576:/tWvv1ZgeeTEMUhcHO/ojmBiS6GyBnTcqcH25NzjMZzUwik50cZOm+bJtr+Qk:/MmTGyBn7NKzUk50cJSJtrB
TLSH
T13065BF40F6568271C64D24747A6EBBAF513D28641B2494C3F3F029D999E03F32AF7B4A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5048	2252	WerFault.exe	81

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 4380 wrote to memory of 2252	4380	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Zero.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Zero.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 576
    3⤵
    - Program crash
    PID:5048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2252 -ip 2252
1⤵
PID:2140

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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