Overview

overview

10

Static

static

c78ce80498...c4.exe

windows7_x64

10

c78ce80498...c4.exe

windows10_x64

10

Sharing

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General

  • Target

    c78ce80498caf92b71e9135974e4b7a0b75a91600588e3f865a96e020926d9c4

  • Size

    804KB

  • Sample

    210915-jgeysaabb4

  • MD5

    23bf88aebc631841514c21c9659883e7

  • SHA1

    1d81b1d22e3b4979a853270c5f2f28b93f749088

  • SHA256

    c78ce80498caf92b71e9135974e4b7a0b75a91600588e3f865a96e020926d9c4

  • SHA512

    51460f1efdb44394fcad66d48f69d51551ae9253f6dc257ca737aa1fa2ee12eca0d0d4824951d198f6fa2e76a1b57b8f581914d36e6738c59fd4c2428374ae17

Score
10/10
djvuvidar517discoverypersistenceransomwarespywarestealer

Malware Config

Extracted

Family

vidar

Version

40.6

Botnet

517

C2

https://dimonbk83.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      c78ce80498caf92b71e9135974e4b7a0b75a91600588e3f865a96e020926d9c4

    • Size

      804KB

    • MD5

      23bf88aebc631841514c21c9659883e7

    • SHA1

      1d81b1d22e3b4979a853270c5f2f28b93f749088

    • SHA256

      c78ce80498caf92b71e9135974e4b7a0b75a91600588e3f865a96e020926d9c4

    • SHA512

      51460f1efdb44394fcad66d48f69d51551ae9253f6dc257ca737aa1fa2ee12eca0d0d4824951d198f6fa2e76a1b57b8f581914d36e6738c59fd4c2428374ae17

    Score
    10/10
    djvuvidar517discoverypersistenceransomwarespywarestealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Vidar Stealer

      stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

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

      discovery

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Tasks