03d27a8e1f3b57a2191db79c5b4c19b3c1510cabe690dd76a3b37a962943359d

General
Target

03d27a8e1f3b57a2191db79c5b4c19b3c1510cabe690dd76a3b37a962943359d

Size

859KB

Sample

211020-xnsp4sadem

Score
10 /10
MD5

599466b73e936c82ce6274b91c5a13c5

SHA1

121e919f5f5a9749fecfea3378100dda364a94c4

SHA256

03d27a8e1f3b57a2191db79c5b4c19b3c1510cabe690dd76a3b37a962943359d

SHA512

8bb8f376731f64fcddd3fac49a73293970369b3c05b980182debc1e3fa4f357575a9737eac1121468d9eaa475f182860fc999167b7207319703e20d0a782e127

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

03d27a8e1f3b57a2191db79c5b4c19b3c1510cabe690dd76a3b37a962943359d

MD5

599466b73e936c82ce6274b91c5a13c5

Filesize

859KB

Score
10 /10
SHA1

121e919f5f5a9749fecfea3378100dda364a94c4

SHA256

03d27a8e1f3b57a2191db79c5b4c19b3c1510cabe690dd76a3b37a962943359d

SHA512

8bb8f376731f64fcddd3fac49a73293970369b3c05b980182debc1e3fa4f357575a9737eac1121468d9eaa475f182860fc999167b7207319703e20d0a782e127

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

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Description

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Tags

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    Description

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    Tags

  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    Description

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    Tags

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    Description

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    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