Resubmissions

19/10/2024, 11:46

241019-nxh3lawepj10

19/10/2024, 11:42

241019-nvc4kathmg7

19/10/2024, 11:38

241019-nrspvawcnp10

19/10/2024, 11:33

241019-nnzc8atfla10

19/10/2024, 11:31

241019-nm7yzawbll

19/10/2024, 11:27

241019-nkpplswakl10

19/10/2024, 11:23

241019-nhfnxsvhmk10

19/10/2024, 11:11

241019-najevashqf10

19/10/2024, 11:07

241019-m762qssgph3

General

  • Target
    6812964531.exe
  • Size 67KB
  • Sample241019-nnzc8atfla
  • SHA256 a73a05a4b6ec6ae1c1ba6d3d12b68cc52b899e2a6dbbaaa1f48f2c260a733123
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      6812964531.exe
    • Size 67KB
    • SHA256 a73a05a4b6ec6ae1c1ba6d3d12b68cc52b899e2a6dbbaaa1f48f2c260a733123
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Neshta payload

    • Detect Umbral payload

    • Modifies WinLogon for persistence

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Umbral

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

    • Command and Scripting Interpreter: PowerShell

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

    • Disables Task Manager via registry modification

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • 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

    • 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

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks