Analysis

  • max time kernel
    118s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    18-10-2021 10:00

General

  • Target

    c9bf719c891dd18e2350f990f79fdf45.exe

  • Size

    406KB

  • MD5

    c9bf719c891dd18e2350f990f79fdf45

  • SHA1

    96cef982c09b09724ad8ff7e5f7a1a69d415456a

  • SHA256

    71ffa382c2598c8b86be65ea9fb29ecb9a0702fee0e962f70da4bc0ca5249506

  • SHA512

    64b14029da22c8ea349d184c74a27e03fe6aad6f1150009865717529ff6b90d08d5e982e1ce62c1b6f43ec27f0cf4aaa09652fed88694b6fb0043508fa765726

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer Payload 2 IoCs
  • Deletes itself 1 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9bf719c891dd18e2350f990f79fdf45.exe
    "C:\Users\Admin\AppData\Local\Temp\c9bf719c891dd18e2350f990f79fdf45.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\c9bf719c891dd18e2350f990f79fdf45.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1308
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:1108

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1108-58-0x0000000000000000-mapping.dmp

  • memory/1308-57-0x0000000000000000-mapping.dmp

  • memory/1440-53-0x000000000063C000-0x000000000065F000-memory.dmp

    Filesize

    140KB

  • memory/1440-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

    Filesize

    8KB

  • memory/1440-55-0x0000000000220000-0x0000000000258000-memory.dmp

    Filesize

    224KB

  • memory/1440-56-0x0000000000400000-0x000000000047B000-memory.dmp

    Filesize

    492KB