Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-05-2022 00:37

General

  • Target

    2261ef303b8bab85d0c6a6de87cf92efb5dece4c92cf057a6fbfc68b06d4c3f7.exe

  • Size

    259KB

  • MD5

    97b5d890ffc4e058d87db11a50e359f1

  • SHA1

    9730784de28963a6ae52620281c9ab141668bdd9

  • SHA256

    2261ef303b8bab85d0c6a6de87cf92efb5dece4c92cf057a6fbfc68b06d4c3f7

  • SHA512

    583e6475ce0775e7f463a32f7a1b6bf91827740f5884f375aa7e4727db39205a7c2a64a09d76ffabcbe25e54f4576398af67b94784e42c417b971ad504fc3448

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer Payload 2 IoCs
  • 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.

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2261ef303b8bab85d0c6a6de87cf92efb5dece4c92cf057a6fbfc68b06d4c3f7.exe
    "C:\Users\Admin\AppData\Local\Temp\2261ef303b8bab85d0c6a6de87cf92efb5dece4c92cf057a6fbfc68b06d4c3f7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\2261ef303b8bab85d0c6a6de87cf92efb5dece4c92cf057a6fbfc68b06d4c3f7.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:1680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5036 -s 1312
      2⤵
      • Program crash
      PID:5100
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5036 -ip 5036
    1⤵
      PID:4792

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1680-134-0x0000000000000000-mapping.dmp
    • memory/2244-133-0x0000000000000000-mapping.dmp
    • memory/5036-130-0x0000000005417000-0x0000000005438000-memory.dmp
      Filesize

      132KB

    • memory/5036-131-0x00000000053A0000-0x00000000053D6000-memory.dmp
      Filesize

      216KB

    • memory/5036-132-0x0000000000400000-0x0000000005168000-memory.dmp
      Filesize

      77.4MB