nefilim

General

Target

fdaefa45c8679a161c6590b8f5bb735c12c9768172f81c930bb68c93a53002f7
Size

58KB
Sample

220131-3tn7rseca4
MD5

6196c083282e7fe87d8039336e707e73
SHA1

eea8b6f959c6dd33609ff1552521cbe9dc169872
SHA256

fdaefa45c8679a161c6590b8f5bb735c12c9768172f81c930bb68c93a53002f7
SHA512

2c7c653597d89e6c4f7041cfc6a9805f5aa9737ec2978b2231880480fd6f875e1726c3cefa0f3149d5b409a56caf8dd8bd1bc5daee62dab00da1fbcfeabddbbc

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
  
  fdaefa45c8679a161c6590b8f5bb735c12c9768172f81c930bb68c93a53002f7
- Size
  
  58KB
- MD5
  
  6196c083282e7fe87d8039336e707e73
- SHA1
  
  eea8b6f959c6dd33609ff1552521cbe9dc169872
- SHA256
  
  fdaefa45c8679a161c6590b8f5bb735c12c9768172f81c930bb68c93a53002f7
- SHA512
  
  2c7c653597d89e6c4f7041cfc6a9805f5aa9737ec2978b2231880480fd6f875e1726c3cefa0f3149d5b409a56caf8dd8bd1bc5daee62dab00da1fbcfeabddbbc
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