General

  • Target

    New_Project_1 (3).exe

  • Size

    486KB

  • Sample

    240514-q279dshf21

  • MD5

    330f592f3a03c5e2c2ed4593d227f1a8

  • SHA1

    55957a8e8d405569c655923dd9414c4ec6c45a0d

  • SHA256

    0f10ed177734b40d0ca45eed258f8c3ca585323e32db8f3cab7387b61de0e679

  • SHA512

    497f9308a49eb1e9451675f447c5774cbaf267dd77b69e1ab494609feca17a20224ac707e54abcb090ee90e1e8187e9fa681c200bcec97ac1bc36b0ce38d15c2

  • SSDEEP

    12288:cWjF6EjvVYEaZ1hJcSx3ThB6xL3s7H4sn4/OxJrinEXL/sT:p68aZ1hlxlay5HdCuL

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1239139511359897700/no9NKxq5Y0T8pWT8XT2sOPqegxvgFUODOTwovbkwjhDGUE5-JgfcJdGO-V3YrtPZiVPB

Extracted

Family

xworm

C2

reference-elliott.gl.at.ply.gg:37420

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Targets

    • Target

      New_Project_1 (3).exe

    • Size

      486KB

    • MD5

      330f592f3a03c5e2c2ed4593d227f1a8

    • SHA1

      55957a8e8d405569c655923dd9414c4ec6c45a0d

    • SHA256

      0f10ed177734b40d0ca45eed258f8c3ca585323e32db8f3cab7387b61de0e679

    • SHA512

      497f9308a49eb1e9451675f447c5774cbaf267dd77b69e1ab494609feca17a20224ac707e54abcb090ee90e1e8187e9fa681c200bcec97ac1bc36b0ce38d15c2

    • SSDEEP

      12288:cWjF6EjvVYEaZ1hJcSx3ThB6xL3s7H4sn4/OxJrinEXL/sT:p68aZ1hlxlay5HdCuL

    • Detect Umbral payload

    • Detect Xworm Payload

    • Umbral

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

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • 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.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks