821fa0c4549b83b5fcfd4bebe74281ae1e6ced4fdaf5b5c25f484d4c7182b4d4

Analysis

max time kernel
149s
max time network
144s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/06/2026, 01:34

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General

Target
2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe
Size 24.2MB
Sample260602-bzefzaax41
SHA256 821fa0c4549b83b5fcfd4bebe74281ae1e6ced4fdaf5b5c25f484d4c7182b4d4
MD5 5421be9b3517b36838de6bdfbfbcf69a
SHA1 6c1f966f40ce0f787c9f4a42d703c4aecde118c7
SHA512 7fabd46364dfb39888738c5f6ce10d5ee5be472ee023c8dfc5a5be673f999a8ce20cefc4bb9653836c6531dc46562cc9f754b6b5687a3aa329ea8018f3dc20a3
SSDEEP 24576:ETBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBW:E4
TLSH
T14947B8CB04490D9CC14E72B1F8D5C04F6982A18A99FF767043EA21C52FD6AABF585DF2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4920	lsass.exe

Executes dropped EXE 1 IoCs

pid	Process
4920	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	2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared F\lsass.exe	2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe

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	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
5132	2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe
4920	lsass.exe
4920	lsass.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5132 wrote to memory of 4920	5132	2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-02_5421be9b3517b36838de6bdfbfbcf69a_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:5132
- C:\Program Files\Common Files\Microsoft Shared F\lsass.exe
  1
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4920

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 38.5MB
SHA256 f77205d3f1f6946c325cad749c69d509304f8838a26a653842e4a35bb794cb72
MD5 55dd698de70e292723747ef1812141a0
SHA1 fae0ba8e51eb2ad8d7df5ca72b351fd9f98b8ffe
SHA512 9d663ce891159fcafefc1b05521052d8b5d062c0913396ad86a8e8d00cf79b4ca7df9f5271cdde24072d8d151a8fb2d14cd452393e6bf4a67d18b45d3f6a3e34
SSDEEP 24576:ETBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBF:Er
TLSH
T1E3970ACB418DA99D4008A2317897D88F9D50B962C6BA687473FB21817F87EF4F446BD3
MD5 SHA1 SHA512 SSDEEP TLSH

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SystemTemp_1

Path C:\SystemTemp_1
Size 95B
SHA256 abcaa35beb8014e8b0164135c0f3602084cb42cea579fd96d230bdddda301385
MD5 6381acf59bd96493728ccc02e52f22ad
SHA1 936dfc846d2b702cc34006e643d5cef582216401
SHA512 b552034ecc34eb7537c0f0650a2cdb7795c71aa593f737c3a89e26170ffb0a2fb2d627c2d3af9bbb92b3da4d200c2e8e5705082b358c8ab740769aca9f685c24
TLSH
T172B01268C16D67111445541B5960614DA1553DC9693723440300D986A4C054DBE46340
MD5 SHA1 SHA512 TLSH