Analysis

  • max time kernel
    139s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-07-2022 15:53

General

  • Target

    a47bd76b1a8fad38780fb7d983d6634d565c42c6da702eb630218fcab05a2e4a.exe

  • Size

    340KB

  • MD5

    2698acb7cbe77cc6fe1c91b9ae6a094a

  • SHA1

    1b248628cd297083f9ba7a74f03aa62ed43d4bd1

  • SHA256

    a47bd76b1a8fad38780fb7d983d6634d565c42c6da702eb630218fcab05a2e4a

  • SHA512

    12ea18d4b8ad3853e5200c6bf552c5d45f2dc5678ed8fdf31ac99a56f9fd913068a0f5b9fd758a4452b2f11ba84283398f674028cb269e27536fef373c9b82d6

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer payload 4 IoCs
  • UPX packed file 1 IoCs

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

  • 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\a47bd76b1a8fad38780fb7d983d6634d565c42c6da702eb630218fcab05a2e4a.exe
    "C:\Users\Admin\AppData\Local\Temp\a47bd76b1a8fad38780fb7d983d6634d565c42c6da702eb630218fcab05a2e4a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\a47bd76b1a8fad38780fb7d983d6634d565c42c6da702eb630218fcab05a2e4a.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:480
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:2328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 1312
      2⤵
      • Program crash
      PID:3328
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2304 -ip 2304
    1⤵
      PID:4124

    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/480-135-0x0000000000000000-mapping.dmp
    • memory/2304-130-0x0000000000400000-0x00000000047D9000-memory.dmp
      Filesize

      67.8MB

    • memory/2304-131-0x0000000004F10000-0x0000000004F31000-memory.dmp
      Filesize

      132KB

    • memory/2304-132-0x0000000006580000-0x00000000065B6000-memory.dmp
      Filesize

      216KB

    • memory/2304-133-0x0000000000400000-0x00000000047D9000-memory.dmp
      Filesize

      67.8MB

    • memory/2304-134-0x0000000000400000-0x00000000047D9000-memory.dmp
      Filesize

      67.8MB

    • memory/2304-137-0x0000000000400000-0x00000000047D9000-memory.dmp
      Filesize

      67.8MB

    • memory/2328-136-0x0000000000000000-mapping.dmp