b4ad7ba65fededaa11befbfcbd688a1da96031c88e2324075b42e5057f04c6b8

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
29/09/2026, 22:29

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General

Target
$TEMP/evw_setup/1.0.0/46free/zlib1.dll
Size 84KB
Sample260929-2eet4swdkc
SHA256 b4ad7ba65fededaa11befbfcbd688a1da96031c88e2324075b42e5057f04c6b8
MD5 089c6e80c5d506ca980f4fe2f6747dde
SHA1 f59e5441c43b008ff49a67cdc9960d33be5425f7
SHA512 dec10d21a229557624b47e9d2e3e011dba592bf9e31d67cd25b6237ba23cf6661ec4475559d06be6a0447260d142856bafbc57cc3cabb96654762dc03feec4f8
SSDEEP 1536:F2lVj7uRxDXVJ3DD7fGcg/hiOrN/GyrZlIOsIOI/QxVDIJ/D:FQVjSHTXbg/hjdZviI/QxVDIJ/D
TLSH
T19783AE82FAD053A2D9F6007490F7877D9A3670214B97ECDBE38DB66849113D1AB362CD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3124	4308	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 2332 wrote to memory of 4308	2332	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\evw_setup\1.0.0\46free\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\evw_setup\1.0.0\46free\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4308
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 496
    3⤵
    - Program crash
    PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4308 -ip 4308
1⤵
PID:3020

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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