Overview

overview

10

Static

static

3

KrampusV1.1.22.exe

windows10-1703-x64

10

Sharing

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General

  • Target
    KrampusV1.1.22.exe
  • Size 7.6MB
  • Sample240401-vgr4wsaa5t
  • SHA256 46f4a4b62350de7861ca91519c197ee1039fbbfdf340aa73b00f7ca12d549f49
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormevasionpersistenceratspywarestealertrojanupx

Malware Config

Extracted

Family

  • xworm

C2

  • fl-pen.gl.at.ply.gg:5894

Attributes
  • Install_directory

    %AppData%

  • install_file

    Discord.exe

Targets

    • Target
      KrampusV1.1.22.exe
    • Size 7.6MB
    • SHA256 46f4a4b62350de7861ca91519c197ee1039fbbfdf340aa73b00f7ca12d549f49
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    xwormevasionpersistenceratspywarestealertrojanupx

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

      evasion

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Drops file in Drivers directory

    • Drops startup file

    • 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.

      spywarestealer

    • UPX packed file

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

      upx

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks