Analysis

  • max time kernel
    120s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    18-10-2021 10:00

General

  • Target

    d97c46925780159c896e29e660398bd6.exe

  • Size

    218KB

  • MD5

    d97c46925780159c896e29e660398bd6

  • SHA1

    efd3520b3fc69151a47764b828196993f15c6e50

  • SHA256

    ffe43b00f7838e90e176fc183158575f27dad5ffef4abbf4443f3eb6b7292b42

  • SHA512

    c842acba14093434369044cfbee30bfa8ab29f1df523916589587d38e8d16bfcc7f961545487716b5f5ad2c0e2ded6df2c55c6b11ef56cab9a86caa796f333f7

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\d97c46925780159c896e29e660398bd6.exe
    "C:\Users\Admin\AppData\Local\Temp\d97c46925780159c896e29e660398bd6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\d97c46925780159c896e29e660398bd6.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/796-60-0x0000000000000000-mapping.dmp

  • memory/1748-59-0x0000000000000000-mapping.dmp

  • memory/2032-55-0x0000000002C9B000-0x0000000002CBE000-memory.dmp

    Filesize

    140KB

  • memory/2032-56-0x0000000075D31000-0x0000000075D33000-memory.dmp

    Filesize

    8KB

  • memory/2032-57-0x0000000000220000-0x0000000000258000-memory.dmp

    Filesize

    224KB

  • memory/2032-58-0x0000000000400000-0x0000000002BA6000-memory.dmp

    Filesize

    39.6MB