2b6a6a55016c7cfeb5e8434b822743e48d53af879da70b84e4dcd1e205731a82

Analysis

max time kernel
148s
max time network
128s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 12:25

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General

Target
zlib1.dll
Size 54KB
Sample260808-plndls1sg1
SHA256 2b6a6a55016c7cfeb5e8434b822743e48d53af879da70b84e4dcd1e205731a82
MD5 d274ea8c4b243a5f9431c475f1cb6890
SHA1 8fb5863bc0476936552c57201db7157062d4c52d
SHA512 506ab9e4525f8a12fc9d96f2d083d93a2ae66cbb34acfbfed87fb9e20f0841e1962640f40cdfccd2c0f05ba586efde2c4af5be824df12271c506465182d0448f
SSDEEP 1536:TozJ1f1Q4HroGEXRKQ6CthnToIfnIOrIOnvK:MPlHrARKQ6YTBfJdnvK
TLSH
T1C7436D1287D997E6E8B8153A54DF931ECB32B20547AEC6C7684C1BA568133E5A7303CF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1420	4520	WerFault.exe	89

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 4588 wrote to memory of 4520	4588	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 496
    3⤵
    - Program crash
    PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4520 -ip 4520
1⤵
PID:5248

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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