Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21-02-2022 23:04

General

  • Target

    DOCUMENT FILE.exe

  • Size

    360KB

  • MD5

    fbe426a8d46b433667c3a30f38c703ab

  • SHA1

    bed53dc755559ecc8ed6a84f7efbe877937324de

  • SHA256

    847fa8413751c698b7cb1f258a4365d8e50915e4811fa916308f6b0e18cbc17d

  • SHA512

    8c22771d773da05bb36d0f4285c25b61157ad42c044d6029f98103b755b5567b2964d225fd18d9d0295bb25a002ba8c9dec9a9567862822ced0ea108f26c8956

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer Payload 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe
    "C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe
      "C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Windows\SysWOW64\cmd.exe
        /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1308
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 3
          4⤵
          • Delays execution with timeout.exe
          PID:1032

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1652-55-0x0000000000220000-0x0000000000243000-memory.dmp

    Filesize

    140KB

  • memory/1652-56-0x0000000000250000-0x0000000000289000-memory.dmp

    Filesize

    228KB

  • memory/1872-57-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1872-58-0x0000000074EC1000-0x0000000074EC3000-memory.dmp

    Filesize

    8KB

  • memory/1872-59-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB