nefilim

General

Target

df17933406a8f189b5a3ac728e0437ac178a6139ce18d9c25c3ba53b7e8fb712
Size

66KB
Sample

220131-3twa3seca6
MD5

c38cf7a56a285bbd15156032494f2432
SHA1

1b2ca5c1454cd0cf0032e2ae09f8604fb896c580
SHA256

df17933406a8f189b5a3ac728e0437ac178a6139ce18d9c25c3ba53b7e8fb712
SHA512

bd375a8b77eacac3ba2015d11e56f8ece41fe4f45cda1bcdc0b64eda9b6e7988084a5a4870b911ddd51fd4b25415b2d9996fa8ef9a63620c8012f4a8cacabcf0

Score

10^/10

Malware Config

Extracted

Path

C:\NEFILIM-DECRYPT.txt

Ransom Note

All of your files have been encrypted with military grade algorithms. We ensure that the only way to retrieve your data is with our software. We will make sure you retrieve your data swiftly and securely when our demands are met. Restoration of your data requires a private key which only we possess. A large amount of your private files have been extracted and is kept in a secure location. If you do not contact us in seven working days of the breach we will start leaking the data. After you contact us we will provide you proof that your files have been extracted. To confirm that our decryption software works email to us 2 files from random computers. You will receive further instructions after you send us the test files. [email protected] [email protected] [email protected]

Emails

[email protected]

Targets

- Target
  
  df17933406a8f189b5a3ac728e0437ac178a6139ce18d9c25c3ba53b7e8fb712
- Size
  
  66KB
- MD5
  
  c38cf7a56a285bbd15156032494f2432
- SHA1
  
  1b2ca5c1454cd0cf0032e2ae09f8604fb896c580
- SHA256
  
  df17933406a8f189b5a3ac728e0437ac178a6139ce18d9c25c3ba53b7e8fb712
- SHA512
  
  bd375a8b77eacac3ba2015d11e56f8ece41fe4f45cda1bcdc0b64eda9b6e7988084a5a4870b911ddd51fd4b25415b2d9996fa8ef9a63620c8012f4a8cacabcf0
Score

10^/10

nefilim ransomware persistence
- Nefilim
  Ransomware first seen in early 2020 which shares code with the Nemty family. Rewritten in Golang in July 2020.
  ransomware nefilim
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Sets service image path in registry
  persistence
- Deletes itself
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

Sharing

General

Malware Config

Extracted

Targets

Modifies extensions of user files

Sets service image path in registry

Deletes itself

MITRE ATT&CK Enterprise v6

Tasks

static1

behavioral1

behavioral2