wannacry | b9c5d4339809e0ad9a00d4d3dd26fdf44a32819a54abf846bb9b560d81391c25

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
17-02-2023 12:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7502-@WanaDecryptor@.exe
Size

240KB
MD5

7bf2b57f2a205768755c07f238fb32cc
SHA1

45356a9dd616ed7161a3b9192e2f318d0ab5ad10
SHA256

b9c5d4339809e0ad9a00d4d3dd26fdf44a32819a54abf846bb9b560d81391c25
SHA512

91a39e919296cb5c6eccba710b780519d90035175aa460ec6dbe631324e5e5753bd8d87f395b5481bcd7e1ad623b31a34382d81faae06bef60ec28b49c3122a9
SSDEEP

3072:Rmrhd5U1eigWcR+uiUg6p4FLlG4tlL8z+mmCeHFZjoHEo3m:REd5+IZiZhLlG4AimmCo

Score

10^/10

wannacry ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

7502-@WanaDecryptor@.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@WanaDecryptor@.bmp"	7502-@WanaDecryptor@.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	7502-@WanaDecryptor@.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

892 2024 WerFault.exe 7502-@WanaDecryptor@.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

7502-@WanaDecryptor@.exe

pid process

2024 7502-@WanaDecryptor@.exe
2024 7502-@WanaDecryptor@.exe

pid	pid_target	process	target process
892	2024	WerFault.exe	7502-@WanaDecryptor@.exe

pid	process
2024	7502-@WanaDecryptor@.exe
2024	7502-@WanaDecryptor@.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7502-@WanaDecryptor@.exe

description	pid	process	target process
PID 2024 wrote to memory of 892	2024	7502-@WanaDecryptor@.exe	WerFault.exe
PID 2024 wrote to memory of 892	2024	7502-@WanaDecryptor@.exe	WerFault.exe
PID 2024 wrote to memory of 892	2024	7502-@WanaDecryptor@.exe	WerFault.exe
PID 2024 wrote to memory of 892	2024	7502-@WanaDecryptor@.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\7502-@WanaDecryptor@.exe
"C:\Users\Admin\AppData\Local\Temp\7502-@WanaDecryptor@.exe"
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 312
2⤵
- Program crash
PID:892

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

memory/892-55-0x0000000000000000-mapping.dmp

Download
memory/2024-54-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download