General

  • Target

    b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944.exe

  • Size

    713KB

  • Sample

    210318-kw4qagx31x

  • MD5

    c2f2834b216ef788b6c0568d0267223c

  • SHA1

    77629d77891b0e995cbd577c7835d7465e5f8ff7

  • SHA256

    b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944

  • SHA512

    7ccdb7dcb37a75b120655458eedfbf7057144d50c820e9acff72d018b613bee9a26263c4a1cd8b4d3a090c52ae66c7af0daa9bf4e39f5e3fc176f9f13b6b968a

Malware Config

Targets

    • Target

      b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944.exe

    • Size

      713KB

    • MD5

      c2f2834b216ef788b6c0568d0267223c

    • SHA1

      77629d77891b0e995cbd577c7835d7465e5f8ff7

    • SHA256

      b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944

    • SHA512

      7ccdb7dcb37a75b120655458eedfbf7057144d50c820e9acff72d018b613bee9a26263c4a1cd8b4d3a090c52ae66c7af0daa9bf4e39f5e3fc176f9f13b6b968a

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

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

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks