Overview

overview

10

Static

static

5c0fb4c866...1b.exe

windows7_x64

5c0fb4c866...1b.exe

windows10_x64

10

Sharing

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General

  • Target

    5c0fb4c8665f2fd33d83edde4809cf0203ce3fc1f4d53d62db5db8d7b843b01b

  • Size

    721KB

  • Sample

    210915-je915saba3

  • MD5

    ee29ad5d6779804dc00dbc21445f723e

  • SHA1

    d73f05b3112785abcedad97ea52245da779a323a

  • SHA256

    5c0fb4c8665f2fd33d83edde4809cf0203ce3fc1f4d53d62db5db8d7b843b01b

  • SHA512

    cb698f1a525c6624c6aff7f11e611b03099cc7f5c1fc07f5d2d5f754280f42832ac733408595dbf755d1c65433865b93175de6cb30e09c42845f7e92346e4e39

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

      5c0fb4c8665f2fd33d83edde4809cf0203ce3fc1f4d53d62db5db8d7b843b01b

    • Size

      721KB

    • MD5

      ee29ad5d6779804dc00dbc21445f723e

    • SHA1

      d73f05b3112785abcedad97ea52245da779a323a

    • SHA256

      5c0fb4c8665f2fd33d83edde4809cf0203ce3fc1f4d53d62db5db8d7b843b01b

    • SHA512

      cb698f1a525c6624c6aff7f11e611b03099cc7f5c1fc07f5d2d5f754280f42832ac733408595dbf755d1c65433865b93175de6cb30e09c42845f7e92346e4e39

    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