General

  • Target

    Fenrir (1).exe

  • Size

    7.5MB

  • Sample

    250108-cvzrsazmhw

  • MD5

    6864579cb01108eadc0ccd51719e350b

  • SHA1

    b5b94213e1713844ced19672da06b9069bc2be14

  • SHA256

    92bf921d278174db61415037fedbe8aa57273e61388dc770bc438c8aa1fda057

  • SHA512

    de7c407d43f22155cfffdcba6ebea3b207c8c8b7f0d29a6fa0171181143a25943b589de4307c8b981fa5b7e58d8c52d14443b77ff44ea1126fad38bdf45a7568

  • SSDEEP

    196608:k0gF+wfI9jUC2gYBYv3vbWY+iITm1U6fd1En:YF1IH2gYBgDW/TOzbs

Malware Config

Targets

    • Target

      Fenrir (1).exe

    • Size

      7.5MB

    • MD5

      6864579cb01108eadc0ccd51719e350b

    • SHA1

      b5b94213e1713844ced19672da06b9069bc2be14

    • SHA256

      92bf921d278174db61415037fedbe8aa57273e61388dc770bc438c8aa1fda057

    • SHA512

      de7c407d43f22155cfffdcba6ebea3b207c8c8b7f0d29a6fa0171181143a25943b589de4307c8b981fa5b7e58d8c52d14443b77ff44ea1126fad38bdf45a7568

    • SSDEEP

      196608:k0gF+wfI9jUC2gYBYv3vbWY+iITm1U6fd1En:YF1IH2gYBgDW/TOzbs

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks