307cc72a23f9f8ba08603a7c35e3f66c48d2ec7e4618bab89029b4b79e767a1e

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
21/08/2026, 03:09

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General

Target
2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe
Size 58KB
Sample260821-dnjbwsv1cs
SHA256 307cc72a23f9f8ba08603a7c35e3f66c48d2ec7e4618bab89029b4b79e767a1e
MD5 38b85149fc765cba35a038f0d70c78d6
SHA1 eb40b1fb2b4b012093c4e901c01610dab0f12139
SHA512 d9a53aab6a7441b684e149861cab68c57e3b5eb53476f4ab941c39dfda412159bf953a1172a5cf201057d6d0d1a9b26c565eaf6f42fc4df447a87d90807125e6
SSDEEP 1536:NR4NXlWq3FMShU1ElhIg31ru5GqvwkO13:NRoWMyShAElhIgly5GH1
TLSH
T10B43AE06D39601FAF1BA09B43CBB1B37A13D787006019543E770DE696CB96A2F83A753
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

discovery execution persistence

Malware Config

Signatures

Detects executables packed with VMProtect. 2 IoCs

resource	yara_rule
behavioral2/memory/4556-0-0x0000000000400000-0x0000000000412000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4556-6-0x0000000000400000-0x0000000000412000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\intelscard.sys	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\EventSystem\Parameters\ServiceDll = "C:\\WINDOWS\\system32\\es.dll"	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\usnsvc.dll	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\msnback.bat	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2772	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
816	Process not Found

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 1036	4556	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe	90
PID 1036 wrote to memory of 824	1036	net.exe	92
PID 4556 wrote to memory of 5664	4556	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe	93
PID 4556 wrote to memory of 2772	4556	2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe	94
PID 5664 wrote to memory of 3728	5664	net.exe	97

C:\Users\Admin\AppData\Local\Temp\2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_38b85149fc765cba35a038f0d70c78d6_elex_wannacry.exe"
1⤵
- Drops file in Drivers directory
- Server Software Component: Terminal Services DLL
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\net.exe
  net stop wmdmpmsn
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1036
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wmdmpmsn
    3⤵
    - System Location Discovery: System Language Discovery
    PID:824
- C:\Windows\SysWOW64\net.exe
  net start wmdmpmsn
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5664
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start wmdmpmsn
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3728
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\msnback.bat
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2772

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

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

msnback.bat

Path C:\Windows\msnback.bat
Size 256B
SHA256 053bb81ea90c79c8ea7f5743d6929bb75bf5ffac32d162544911402d280d9f4c
MD5 20e9647ccde3c31f64c4f07d399138b1
SHA1 697d44725438080b681200846c284aaea6db391c
SHA512 965c415d298071ae5ef9c421aea8615257c5e44fd198a5e41d6df7f5f3ea438aef2edf188cda4b55cc88734c9fdb92a5c148e03a61d87db207cd4aec083aa22e
TLSH
T1ACD02EC181FE86DA58409B5F05A05209C031BC783E442F8867288BA834E2C0DBECB280
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4556-0-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/4556-6-0x0000000000400000-0x0000000000412000-memory.dmp