fb21755c605f0762199f2c6008fa3a64872f16e59a6b6c016dfe4a40f1f122c4

Analysis

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

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
29/05/2026, 17:16

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General

Target
2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe
Size 34.8MB
Sample260529-vthe8aay7v
SHA256 fb21755c605f0762199f2c6008fa3a64872f16e59a6b6c016dfe4a40f1f122c4
MD5 6efd8d754370dcae31387b3f581959fb
SHA1 34a09ebf356701730c46f9a9bc88d8fc3ae081a8
SHA512 5c0ed3175aabfd74dbfe02109efcd469b6188f873f460c4612cebe43c8334737634dcb154603384686b2d00acaa201dfb4db9348ff71febac4df26223cd04a39
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNu:jD
TLSH
T16B87C9E2B16F903FDF9A9C3BE1231562097CC12DE46A723312A140C6477B8EE55DE47A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4760	lsass.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared V\lsass.exe	2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared V\lsass.exe	2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3256	4760	WerFault.exe	82

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	2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1944	2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe
4760	lsass.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 4760	1944	2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe	82

C:\Users\Admin\AppData\Local\Temp\2026-05-29_6efd8d754370dcae31387b3f581959fb_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-29_6efd8d754370dcae31387b3f581959fb_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:1944
- C:\Program Files\Common Files\Microsoft Shared V\lsass.exe
  1
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 244
    3⤵
    - Program crash
    PID:3256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4760 -ip 4760
1⤵
PID:2560

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 V\lsass.exe
Size 47.6MB
SHA256 af91e2276202433d72920296a954374f874b55c4771f8d55b151fa1b828e0928
MD5 417f7863ea120e18eef1c3fa2a338f67
SHA1 c706e45294369d39fed05214a345114e46e41fbb
SHA512 3458009bdf3e93aaffb4af518aa426c6b7eb667fd474019382a2997dedefeb8547550517c54f78e25d114d6f9f3a22ebde501f369daa0122e1e6ddd5f32496bd
SSDEEP 12288:j4NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNZ:j8
TLSH
T19FB7E6A1713B406FCE9A9C3BF12744130E79812EA05E772312F2C4D7477B99E6ACA479
MD5 SHA1 SHA512 SSDEEP TLSH

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