Overview

overview

10

Static

static

b2a7ab12fd91fa...69.exe

windows7_x64

10

b2a7ab12fd91fa...69.exe

windows10_x64

10
General
Target

b2a7ab12fd91fab7767d41fa9cf06369.exe

Size

808KB

Sample

211020-g4xe8shfcl

Score
10/10
MD5

b2a7ab12fd91fab7767d41fa9cf06369

SHA1

0af43e5510d68f712dc2e05bdab07a86cbdac895

SHA256

4b3e6a191ab050a87aeeb8a650290c4e217e9508971beeb929417d13d89292e2

SHA512

e601c95ffadb3035ad231246ba60bf2ff71d0cc21fa02903e04a28e476b748a2d7ba8b3eaa029352e94b07fe163b9e5a0801861b556622d6dd0c98ec85e183ae

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/lancer
Targets
Target

b2a7ab12fd91fab7767d41fa9cf06369.exe

MD5

b2a7ab12fd91fab7767d41fa9cf06369

Filesize

808KB

Score
10/10
SHA1

0af43e5510d68f712dc2e05bdab07a86cbdac895

SHA256

4b3e6a191ab050a87aeeb8a650290c4e217e9508971beeb929417d13d89292e2

SHA512

e601c95ffadb3035ad231246ba60bf2ff71d0cc21fa02903e04a28e476b748a2d7ba8b3eaa029352e94b07fe163b9e5a0801861b556622d6dd0c98ec85e183ae

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 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

behavioral1behavioral2
MITRE ATT&CK Matrix
Collection
Command and Control
    Credential Access
    Defense Evasion
    Discovery
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Persistence
              Privilege Escalation