ab99feb022a466a13a38fe4088bc62b7fd3a74d50ed3a248c95f37bb57926794

Resubmissions

18/04/2026, 04:58

260418-fl62aaay6j7

17/04/2026, 21:34

260417-1ext9acs6s7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260126-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260126-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
17/04/2026, 21:34

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General

Target
Vista.Emulation.dll
Size 60KB
Sample260417-1ext9acs6s
SHA256 ab99feb022a466a13a38fe4088bc62b7fd3a74d50ed3a248c95f37bb57926794
MD5 1133991dd82f774a7abb842bd67e7cb8
SHA1 35b0e6cd294ea193e10b8a24fa567dcf9b86875a
SHA512 cdfb11b5cafc7581ea8aebb0d01454f6ff363c8a7071cf910d76de88eda36e86e3f151be2074e2cc2f1ef8af8b66ffeafe1ce338aa3bf61e942618003111faff
SSDEEP 768:m09sixfrV5jq1qJQwHFNcX8qVU5M/5xG06EndOjaOhizloRLyWLXb:d9suZ2wHFNcMli/5x96C8JWlMyWLX
TLSH
T157536C113262D0B2D09B477D34859B15AB7FF8156BF085836FB61B4DAE323E0BA36306
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1104	4500	WerFault.exe	80

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 4432 wrote to memory of 4500	4432	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Vista.Emulation.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Vista.Emulation.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4500
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 612
    3⤵
    - Program crash
    PID:1104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4500 -ip 4500
1⤵
PID:2120

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

Replay Monitor

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Downloads

memory/4500-0-0x0000000000C20000-0x0000000000CB6000-memory.dmp

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