bb00cb404ba455cb4f97ecd9a660fdc9b7e2b6552b92627a86124760a87d649b

Analysis

max time kernel
148s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/09/2026, 22:10

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General

Target
zlib-1.2.3.win32/bin/zlib1.dll
Size 72KB
Sample260930-13rcdasbja
SHA256 bb00cb404ba455cb4f97ecd9a660fdc9b7e2b6552b92627a86124760a87d649b
MD5 5006eaab6f921a1c44aab7c93ad0bd95
SHA1 304802e1f9fdad20d14289966b679416204ac48b
SHA512 9d27f0ccdf36950e266b85be4793ae8f2823302430bfdd5935068474d49bc7041d06c22d0dd477c9d727bfcde665b69adc9e3aac7355886035b0fed625ed1d7f
SSDEEP 1536:vkCgJgBbAcqmHzDgd2+nToIfZIOjIOGix:v0gaNmHzDgdXTBfzFGix
TLSH
T17C736C0297D157E2E8B8267950DB972DDB32B20947AEC6D3688C3F9558123E5E7302CF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5480	2108	WerFault.exe	90

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 5008 wrote to memory of 2108	5008	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib-1.2.3.win32\bin\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5008
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib-1.2.3.win32\bin\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 500
    3⤵
    - Program crash
    PID:5480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2108 -ip 2108
1⤵
PID:5340

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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