Analysis

  • max time kernel
    123s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    18-10-2021 10:00

General

  • Target

    f69508d55acde4c4589e8902b3a9385f.exe

  • Size

    314KB

  • MD5

    f69508d55acde4c4589e8902b3a9385f

  • SHA1

    a60045ff1a15d7be32dfbba53ca5c1667d9ea92d

  • SHA256

    8f90035037b571800dea7fd455baf6b75582ce0bc90070f3b65dc4a42ccd7ee8

  • SHA512

    7d4158c8b1171ea1d7ccbb060a46d62b0cc81a2ea6e932ed010013f877605a999e021a0267e121960ea0d7742c1599d33f12af365d89b8afbdd2803de8fc3edd

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\f69508d55acde4c4589e8902b3a9385f.exe
    "C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\f69508d55acde4c4589e8902b3a9385f.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:300
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:1908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/300-58-0x0000000000000000-mapping.dmp

  • memory/1596-54-0x000000000191A000-0x000000000193D000-memory.dmp

    Filesize

    140KB

  • memory/1596-55-0x00000000757B1000-0x00000000757B3000-memory.dmp

    Filesize

    8KB

  • memory/1596-56-0x0000000000220000-0x0000000000258000-memory.dmp

    Filesize

    224KB

  • memory/1596-57-0x0000000000400000-0x0000000001788000-memory.dmp

    Filesize

    19.5MB

  • memory/1908-59-0x0000000000000000-mapping.dmp