mafiaware666 | 6009295f55109ad05e2c663c53b696ce632367c328d243facde3f33cf983ff39

Analysis

max time kernel
111s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2025, 05:10

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General

Target

skull.exe
Size

1.3MB
MD5

3dce90e3a6daa8810d0dec78fd960e7d
SHA1

d44f4aa742092f33ec60264e15f09fd127a7bb87
SHA256

096ef1633a1e4b28ea46406a6324998b5f4dc59f6596c3dfbe7d6ee403186733
SHA512

bd68ff08882a61bbc4d51ca4ae2e055e20db853c79f6ea0dd5867e673af38785ddc4f992c1891ecf6d658bba89556b23797d708f3d7ca1da1eb4332f9a2ea84c
SSDEEP

24576:RTSTiRsBE12BIVpT2QhYpAILUo/g9QZqpMC3QVbIoTdWR8SfEuGujqZF13z8H81:RT7RseZDT2tSbvQsIbe8YVjPH81

Score

10^/10

mafiaware666 discovery ransomware

Malware Config

Signatures

Detect MafiaWare666 ransomware 1 IoCs

resource	yara_rule
behavioral2/memory/1268-1-0x0000000000310000-0x0000000000462000-memory.dmp	family_mafiaware666

MafiaWare666 Ransomware
MafiaWare666 is ransomware written in C# with multiple variants.
ransomware mafiaware666
Mafiaware666 family
mafiaware666
Renames multiple (74) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	skull.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	skull.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	skull.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	skull.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	skull.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	skull.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4128	OpenWith.exe
4200	OpenWith.exe
4044	OpenWith.exe

C:\Users\Admin\AppData\Local\Temp\skull.exe
"C:\Users\Admin\AppData\Local\Temp\skull.exe"
1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
PID:1268

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4128

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4200

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4044

Network

MITRE ATT&CK Enterprise v15

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

C:\Users\Admin\Desktop\BlockSubmit.dwg.exe

Filesize
281KB

MD5
a6c2562f5654f38d629c9c6436e9fd86

SHA1
3f30ff01108cf5b34a83fb24e999267eb09bb336

SHA256
fc97994d8c8a8f8fdb2b8731a9d751a5cd89c2fe5200b7d01a55bbb2a732c48f

SHA512
a6e5b698501d2c908dfef5cb571b96f76b19de2c4c58ccd91af2a87a097639528bbfdc4664440a8178946c7e3c080073cde4bea53e9f3e82952b2eb73cc2b7b8

Download Submit
memory/1268-0-0x000000007538E000-0x000000007538F000-memory.dmp

Filesize
4KB

Download
memory/1268-1-0x0000000000310000-0x0000000000462000-memory.dmp

Filesize
1.3MB

Download
memory/1268-2-0x0000000005350000-0x00000000058F4000-memory.dmp

Filesize
5.6MB

Download
memory/1268-3-0x0000000004DA0000-0x0000000004E32000-memory.dmp

Filesize
584KB

Download
memory/1268-4-0x0000000004D20000-0x0000000004D2A000-memory.dmp

Filesize
40KB

Download
memory/1268-5-0x0000000075380000-0x0000000075B30000-memory.dmp

Filesize
7.7MB

Download
memory/1268-6-0x0000000075380000-0x0000000075B30000-memory.dmp

Filesize
7.7MB

Download
memory/1268-27-0x000000007538E000-0x000000007538F000-memory.dmp

Filesize
4KB

Download
memory/1268-31-0x0000000075380000-0x0000000075B30000-memory.dmp

Filesize
7.7MB

Download
memory/1268-35-0x0000000075380000-0x0000000075B30000-memory.dmp

Filesize
7.7MB

Download
memory/1268-86-0x0000000075380000-0x0000000075B30000-memory.dmp

Filesize
7.7MB

Download