767d2f8c73f90a9589c3be231d94e14212f0348f8a707eccf312f5b36972e2c4

Analysis

max time kernel
27s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
05-06-2023 14:46

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General

Target

04643399.exe
Size

2.9MB
MD5

4980d38eeac9f666c67d40406d8ef615
SHA1

a3f38d0dec13df5f805b5acde112c2acac73ba08
SHA256

767d2f8c73f90a9589c3be231d94e14212f0348f8a707eccf312f5b36972e2c4
SHA512

c2e1ce3ac3bcb6ed0fa771e338839e436317cf718cd6a1b727673cb1f102e0c77defc9771f77191163752b7676a9080d77b93f7db73f282071a4a5a5dc712d4f
SSDEEP

6144:k/jhHGXR/BsheZM5wnH2m9pD6UgmryJOk55ndwz7AYjK8RTI5JN4jnpK:k/0XHsheSAH2GD3uOAwP5ZI5z4jpK

Score

5^/10

ransomware

Malware Config

Signatures

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

04643399.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Control Panel\Desktop\Wallpaper = ".\\wallpaper\\WanaDecryptor.bmp"	04643399.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1596 1712 WerFault.exe 04643399.exe

pid	pid_target	process	target process
1596	1712	WerFault.exe	04643399.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

04643399.exe

description	pid	process	target process
PID 1712 wrote to memory of 1596	1712	04643399.exe	WerFault.exe
PID 1712 wrote to memory of 1596	1712	04643399.exe	WerFault.exe
PID 1712 wrote to memory of 1596	1712	04643399.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\04643399.exe
"C:\Users\Admin\AppData\Local\Temp\04643399.exe"
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:1712

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1712 -s 588
2⤵
- Program crash
PID:1596

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

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Downloads

memory/1712-54-0x00000000001D0000-0x00000000004C4000-memory.dmp

Filesize
3.0MB

Download
memory/1712-56-0x0000000000920000-0x00000000009A0000-memory.dmp

Filesize
512KB

Download
memory/1712-59-0x0000000000920000-0x00000000009A0000-memory.dmp

Filesize
512KB

Download