815176eccc61fc56e0120d0fe8de4441ba98e2b2cf308104b1724e33fdc56aa2

General
Target

815176eccc61fc56e0120d0fe8de4441ba98e2b2cf308104b1724e33fdc56aa2

Size

781KB

Sample

211020-2stkeshfe3

Score
10 /10
MD5

9740ff0ea10ac97e515be5429dfa3933

SHA1

00819305291a6f683d1c76757060964467a701f3

SHA256

815176eccc61fc56e0120d0fe8de4441ba98e2b2cf308104b1724e33fdc56aa2

SHA512

b383334b9fd61537b5093052aed309938accb589369e753447e0bd7df8788b82bcdee10a5aa6496c0ba93b3c4d7a707d054081eb1e58216f129d85bb25f7cba9

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

815176eccc61fc56e0120d0fe8de4441ba98e2b2cf308104b1724e33fdc56aa2

MD5

9740ff0ea10ac97e515be5429dfa3933

Filesize

781KB

Score
10 /10
SHA1

00819305291a6f683d1c76757060964467a701f3

SHA256

815176eccc61fc56e0120d0fe8de4441ba98e2b2cf308104b1724e33fdc56aa2

SHA512

b383334b9fd61537b5093052aed309938accb589369e753447e0bd7df8788b82bcdee10a5aa6496c0ba93b3c4d7a707d054081eb1e58216f129d85bb25f7cba9

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 System Credentials in Files
  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

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

    Tags

    TTPs

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

    Tags

    TTPs

    Registry Run Keys / Startup Folder Modify 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