General

  • Target

    Boostrapper.exe

  • Size

    94KB

  • Sample

    241125-naa4gazpgq

  • MD5

    a0faa8efdcb841126cc98047b0c4c659

  • SHA1

    4ef17c24f4cb9d42a4314afa466cb9a216465e30

  • SHA256

    979117f43af943864839dd1709da2d8e78390a052ba404b17c35500a65d06eae

  • SHA512

    f50dd4135929923c6b6d86ea9a0b6a44b7954dccfe270c8d4b2f9b820a793927e4e623c29e499f5e7bb9dcb6f5c183ba22ac1de018a76b07498857c7c4a5453d

  • SSDEEP

    1536:z7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfGwMYHhZOU:v7DhdC6kzWypvaQ0FxyNTBfGSHr

Malware Config

Targets

    • Target

      Boostrapper.exe

    • Size

      94KB

    • MD5

      a0faa8efdcb841126cc98047b0c4c659

    • SHA1

      4ef17c24f4cb9d42a4314afa466cb9a216465e30

    • SHA256

      979117f43af943864839dd1709da2d8e78390a052ba404b17c35500a65d06eae

    • SHA512

      f50dd4135929923c6b6d86ea9a0b6a44b7954dccfe270c8d4b2f9b820a793927e4e623c29e499f5e7bb9dcb6f5c183ba22ac1de018a76b07498857c7c4a5453d

    • SSDEEP

      1536:z7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfGwMYHhZOU:v7DhdC6kzWypvaQ0FxyNTBfGSHr

    • AntiVM

      Detects if the file is ran on tria.ge.

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Clipboard Data

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

    • 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

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • 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