Overview

overview

10

Static

static

10

SolaraBootstraper.exe

windows7-x64

10

SolaraBootstraper.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    SolaraBootstraper.exe

  • Size

    256KB

  • Sample

    240520-3rtz8sbh61

  • MD5

    f531ee0dd304c0b39bb6d8d4423416cb

  • SHA1

    689a6d2b3712d8f8118be9ed5327ad5b79e9eb61

  • SHA256

    795d4065c2d430ce0c6e5828c94b84b9f812872ee65ecd4b19c741c6bfab4fdf

  • SHA512

    c4e03fb5f7dcfadc2eff889847afc5e338be7428a86f51d3182e1487d632e11242b8faeb4baa643c0c28e1a6670831ea27a057e845588db01e3f8ec860beeb5f

  • SSDEEP

    6144:wdCbxjHoT1cUhcX7elbKTua9bfF/H9d9n:ic3X3u+

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    win32.exe

  • pastebin_url

    https://pastebin.com/raw/A6Ve7KU4

Targets

    • Target

      SolaraBootstraper.exe

    • Size

      256KB

    • MD5

      f531ee0dd304c0b39bb6d8d4423416cb

    • SHA1

      689a6d2b3712d8f8118be9ed5327ad5b79e9eb61

    • SHA256

      795d4065c2d430ce0c6e5828c94b84b9f812872ee65ecd4b19c741c6bfab4fdf

    • SHA512

      c4e03fb5f7dcfadc2eff889847afc5e338be7428a86f51d3182e1487d632e11242b8faeb4baa643c0c28e1a6670831ea27a057e845588db01e3f8ec860beeb5f

    • SSDEEP

      6144:wdCbxjHoT1cUhcX7elbKTua9bfF/H9d9n:ic3X3u+

    Score
    10/10
    xwormexecutionpersistencerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • 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.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks