379b5ac3cc488a42a44ad1f4f8f7ccfa2ca02bce0ecee7a7f1c0f8dba8b97ac2

General
Target

379b5ac3cc488a42a44ad1f4f8f7ccfa2ca02bce0ecee7a7f1c0f8dba8b97ac2

Size

850KB

Sample

211020-j3tn3aggc8

Score
10 /10
MD5

ef11147a57a9bf1da1f49f4b21cf534b

SHA1

a641acfee3c3864b4b71d50627f54b4d9377706c

SHA256

379b5ac3cc488a42a44ad1f4f8f7ccfa2ca02bce0ecee7a7f1c0f8dba8b97ac2

SHA512

5892e1df2b8b9fb579ad16b3c71de0a41c533a2ab304ed6ac2708884dcbe83655fc0687243e6b66c2c59e6f0bae1dfa70770556665e84bfd5ae6e7d08c75f674

Malware Config

Extracted

Family vidar
Version 41.5
Botnet 517
C2

https://mas.to/@xeroxxx

Attributes
profile_id
517

Extracted

Family djvu
C2

http://rlrz.org/fhsgtsspen6

Targets
Target

379b5ac3cc488a42a44ad1f4f8f7ccfa2ca02bce0ecee7a7f1c0f8dba8b97ac2

MD5

ef11147a57a9bf1da1f49f4b21cf534b

Filesize

850KB

Score
10/10
SHA1

a641acfee3c3864b4b71d50627f54b4d9377706c

SHA256

379b5ac3cc488a42a44ad1f4f8f7ccfa2ca02bce0ecee7a7f1c0f8dba8b97ac2

SHA512

5892e1df2b8b9fb579ad16b3c71de0a41c533a2ab304ed6ac2708884dcbe83655fc0687243e6b66c2c59e6f0bae1dfa70770556665e84bfd5ae6e7d08c75f674

Tags

Signatures

  • Detected Djvu ransomware

  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

    Tags

  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

    Tags

  • Vidar Stealer

    Tags

  • Downloads MZ/PE file

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies file permissions

    Tags

    TTPs

    File Permissions Modification
  • Reads user/profile data of web browsers

    Description

    Infostealers often target stored browser data, which can include saved credentials etc.

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks installed software on the system

    Description

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    Tags

    TTPs

    Query Registry
  • Looks up external IP address via web service

    Description

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Privilege Escalation