General

  • Target

    Valid.exe

  • Size

    47.1MB

  • Sample

    241005-atd3ksvdll

  • MD5

    4f4303fd0f5e78db2e511071993ed2d1

  • SHA1

    33623757606835f1f06e9fd353cc9f01d006604e

  • SHA256

    52ef255b9571f7824404083153f0ccc67b098b7dbc2154d5d5b9b5fcbc5880a5

  • SHA512

    dd993578d23476119b76bcaf09e186646dda4af18985bec13d080975b04f87686c92c49dc35da5c6ecc338ca895bf6730ec1585bb38bbb396c6571766001d200

  • SSDEEP

    786432:USaxODg7xSg/9r4AFFvolmHpolhqbHJX/8gLq23/Wqpl3AnPTKIIEOw4cZACi4:U40Mg/9rHFz08bxHLq4esmZIEbR

Malware Config

Extracted

Family

xworm

C2

22.ip.gl.ply.gg:55064

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Command.exe

Targets

    • Target

      Valid.exe

    • Size

      47.1MB

    • MD5

      4f4303fd0f5e78db2e511071993ed2d1

    • SHA1

      33623757606835f1f06e9fd353cc9f01d006604e

    • SHA256

      52ef255b9571f7824404083153f0ccc67b098b7dbc2154d5d5b9b5fcbc5880a5

    • SHA512

      dd993578d23476119b76bcaf09e186646dda4af18985bec13d080975b04f87686c92c49dc35da5c6ecc338ca895bf6730ec1585bb38bbb396c6571766001d200

    • SSDEEP

      786432:USaxODg7xSg/9r4AFFvolmHpolhqbHJX/8gLq23/Wqpl3AnPTKIIEOw4cZACi4:U40Mg/9rHFz08bxHLq4esmZIEbR

    • Detect Umbral payload

    • Detect Xworm Payload

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Clipboard Data

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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • 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