General

  • Target

    df7f773c461737e25aceb185f38f482e80950fac302a9c00c7429b7d1b79f0a1

  • Size

    730KB

  • Sample

    210722-g7dg6mq22j

  • MD5

    6be6a3a8b534f263a15d361b675cf0bf

  • SHA1

    0f688afce87dd8361e7fb727a3ae6114fe5e87ee

  • SHA256

    df7f773c461737e25aceb185f38f482e80950fac302a9c00c7429b7d1b79f0a1

  • SHA512

    a4ce2a96c3280cde06cb5801a6d81524d7bec71f29249b938fe39640d5d392a5100ab9f404dd820e01ebb6fc79ff78fe03f509a389c1a9345f18947a08fea631

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      df7f773c461737e25aceb185f38f482e80950fac302a9c00c7429b7d1b79f0a1

    • Size

      730KB

    • MD5

      6be6a3a8b534f263a15d361b675cf0bf

    • SHA1

      0f688afce87dd8361e7fb727a3ae6114fe5e87ee

    • SHA256

      df7f773c461737e25aceb185f38f482e80950fac302a9c00c7429b7d1b79f0a1

    • SHA512

      a4ce2a96c3280cde06cb5801a6d81524d7bec71f29249b938fe39640d5d392a5100ab9f404dd820e01ebb6fc79ff78fe03f509a389c1a9345f18947a08fea631

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

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

Collection

Data from Local System

3
T1005

Tasks