421cb15dfc59958a9eabffeee73afb746764851fecd66a51c42f3eb88185b1a7

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
28/07/2026, 04:33

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General

Target
2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe
Size 29.0MB
Sample260728-e61jkafa32
SHA256 421cb15dfc59958a9eabffeee73afb746764851fecd66a51c42f3eb88185b1a7
MD5 a4b86110fad35f80946b08cfcb033448
SHA1 31d5636c3feb67379aed270e2d0d67f5613ded97
SHA512 efe91774817fa6a759d0afcab10c22a11da3aa3442b7a628095d23e6286105d0f06c1961756ba6f37b4d268c170c9703ef832a55c86e66d2aecb6c62958651ee
SSDEEP 98304:9nZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:b
TLSH
T19E67B7AEAD573EDFE86CFB6837B4F90757BB2E8A0E3567950074434601A48A711E3C21
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2396	lsass.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared J\lsass.exe	2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared J\lsass.exe	2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2740	2396	WerFault.exe	85

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	2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1572	2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe
2396	lsass.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 2396	1572	2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe	85

C:\Users\Admin\AppData\Local\Temp\2026-07-28_a4b86110fad35f80946b08cfcb033448_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-28_a4b86110fad35f80946b08cfcb033448_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:1572
- C:\Program Files\Common Files\Microsoft Shared J\lsass.exe
  1
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 420
    3⤵
    - Program crash
    PID:2740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2396 -ip 2396
1⤵
PID:3896

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 J\lsass.exe
Size 41.0MB
SHA256 3f5c5a0c03363d87f766a0050d09912435fef860dfc5a9ba0ff9e381c9f9be32
MD5 c9c9c5eecc40d848313b25665bcc479a
SHA1 8bdbfc4cebdb262161eacea08d5c0843f81f3c29
SHA512 b9edc2764ef18b2d7ff178eef44bdbe7e22f1f33ba345a4e6a2d38b62ba3fb22d03681f4c84ea8c3d016aa893c5f41b7546ec162369e47915a71cddc40320ebd
SSDEEP 98304:9nZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZI:I
TLSH
T1F797D9AFBA673E5EA4DCF72467BCFC0B63EF258A0F38938A0160065600959D742D7D61
MD5 SHA1 SHA512 SSDEEP TLSH

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