15dde4caba0df92ea5eaf32d85833383c70204e6495537669e314cd6a1b0e249

Analysis

max time kernel
150s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/08/2026, 02:19

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General

Target
2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe
Size 19.7MB
Sample260828-csbxyastcs
SHA256 15dde4caba0df92ea5eaf32d85833383c70204e6495537669e314cd6a1b0e249
MD5 efa5144b711e3d9263b94ace7b7cf56f
SHA1 7cde3b3805291b4c88f814d0e732e1a2971ae22e
SHA512 100136bd6a95474ab5fdf6622df3154af4328fb42a24187f2b5b56588daaeb2510b53073c6114b39b15ceea1428c78d287c7c3ab6bd442e2aae0549b6e5a4c46
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN9:jq
TLSH
T1BD27A292EC848FE3D776B2A12D5E0AB8346873DA959897CDC117CD60279D6C2F33A530
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1476	lsass.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared M\lsass.exe	2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared M\lsass.exe	2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3572	1476	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	2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3452	2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe
1476	lsass.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 1476	3452	2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-27_efa5144b711e3d9263b94ace7b7cf56f_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:3452
- C:\Program Files\Common Files\Microsoft Shared M\lsass.exe
  1
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1476
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 472
    3⤵
    - Program crash
    PID:3572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1476 -ip 1476
1⤵
PID:5016

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 M\lsass.exe
Size 32.0MB
SHA256 df70c5ef5b11f0fb765ab1317364d53d000ea32c7115f523bc4065594631bb3b
MD5 9ada23f49881d8664c5ce4c8d42ed5d6
SHA1 05f6a4f8d4f79e3d5f20c1b0837612f13ecb5759
SHA512 9cbafa379c6ad53222b154d6923cf6e7130b59f99d41cc89c7c9ce06a90a1fe2779446d62a4a23cbde139048d75c468b551575b355284394b62fa5c6c4a84244
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN0:jx
TLSH
T19077D68DECD84F9BCBAAA1826D0F1574381635D791A4D7CEC407CA5623DD283F26B398
MD5 SHA1 SHA512 SSDEEP TLSH

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