Analysis

  • max time kernel
    11s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01-03-2021 18:10

General

  • Target

    PO# PO2021020371N.exe

  • Size

    291KB

  • MD5

    ce29efcf5510c0a9dcb38f62d50a5e8b

  • SHA1

    eb9a28d284303663ab5bbbab9e8cc7db88cf7a2f

  • SHA256

    9bec30afd640d68be28fef4e6b5abcc14d90b2c7293d7709619b8f9b9e685b7e

  • SHA512

    dee3945c894c586f1a4d42581796e1ce257cc5ec8a98368de391d664328ac7318163aff9edcd5eac9b9ab4c3b3407c2448add2d07b3863a74f513bf0541a77aa

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • 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\PO# PO2021020371N.exe
    "C:\Users\Admin\AppData\Local\Temp\PO# PO2021020371N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\PO# PO2021020371N.exe
      "C:\Users\Admin\AppData\Local\Temp\PO# PO2021020371N.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\cmd.exe
        /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\PO# PO2021020371N.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:740
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 3
          4⤵
          • Delays execution with timeout.exe
          PID:548

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/536-6-0x000007FEF7430000-0x000007FEF76AA000-memory.dmp

    Filesize

    2.5MB

  • memory/548-10-0x0000000000000000-mapping.dmp

  • memory/740-9-0x0000000000000000-mapping.dmp

  • memory/1656-3-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1656-4-0x000000000041EA5D-mapping.dmp

  • memory/1656-5-0x0000000075781000-0x0000000075783000-memory.dmp

    Filesize

    8KB

  • memory/1656-8-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1888-2-0x0000000002F10000-0x0000000002F21000-memory.dmp

    Filesize

    68KB

  • memory/1888-7-0x0000000000250000-0x0000000000289000-memory.dmp

    Filesize

    228KB