Analysis

  • max time kernel
    300s
  • max time network
    301s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03/12/2020, 18:27

General

  • Target

    update.bin.exe

  • Size

    660KB

  • MD5

    765f831922fabc13d4f4ad53d0e2c061

  • SHA1

    9d5bd9c8682e342c5f11d84047ed012fada6a8c6

  • SHA256

    1618a3156b7e95edf26ae91df6c0b047917dee3cd484e96d9a4b0e3d7f310d48

  • SHA512

    3e1f82b0fc03f08d093c0520719f7c628e1a691fbd448dcd6384b523dc23c9178a5f9ce749803e357dfc62840a3d4866074d191feb2dcb2b3a80a0a2a99342d6

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar log file 1 IoCs

    Detects a log file produced by Vidar.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\update.bin.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4804-2-0x00000000022A0000-0x00000000022A1000-memory.dmp

    Filesize

    4KB

  • memory/4804-3-0x00000000022A0000-0x00000000022A1000-memory.dmp

    Filesize

    4KB