b1ed3a56b54c341fc908bc2bf01bced2e1cb2249f40a73a0cb6253b2ffff2c00

Analysis

max time kernel
150s
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
19/08/2026, 02:01

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General

Target
2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe
Size 18.9MB
Sample260819-cfq64avcmc
SHA256 b1ed3a56b54c341fc908bc2bf01bced2e1cb2249f40a73a0cb6253b2ffff2c00
MD5 31c4f9efd36e97e414389769ed913d6c
SHA1 30f322cbd5cd457ed8f67c064e2a9fa762019c21
SHA512 1f4efb355f96e08647876039a42bf921b4ebda99b5d00a3f44373e005f37488f42b1a9acc1a91bb19753a9a4fc0318c920e21d772ecba2586d18a5897a630f28
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNv:jq
TLSH
T14E1786B74C2C1E8B03A281FD4E5DA1E89ED70D40665B0077EC7CA16758C7DE244BE9AB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4872	lsass.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared F\lsass.exe	2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared F\lsass.exe	2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1476	4872	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 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	2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1032	2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe
4872	lsass.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 4872	1032	2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-19_31c4f9efd36e97e414389769ed913d6c_elex_wannacry.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Program Files\Common Files\Microsoft Shared F\lsass.exe
  1
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 472
    3⤵
    - Program crash
    PID:1476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4872 -ip 4872
1⤵
PID:2360

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

lsass.exe

Path C:\Program Files\Common Files\Microsoft Shared F\lsass.exe
Size 33.9MB
SHA256 8175728c2786975b70836f99684726ca00bbcdff8f6aff65761696ab17985634
MD5 b78774c79af5044945a7eda6f3fbfe2c
SHA1 0421f5604f38a9aa5f9dab1c978358224f669438
SHA512 90b08ec4045cf1a9f531b2449ac134710c3077d8becdc9ffac5fb6524178949cb437ecec190d50d4da0db3b4c40d96fb2730086f5d1f5c2c619e14fb6e6d349c
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNM:jh
TLSH
T18077A6E7581C9D4F027E91FF8B8C62A8E8C64D84A61A5033AC5F75475D89CE20DEE06F
MD5 SHA1 SHA512 SSDEEP TLSH

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