Analysis

  • max time kernel
    54s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27/05/2021, 18:52

General

  • Target
    58e2e7edce382e5dcf6bf862b5b0c420.exe
  • Size 558KB
  • Sample210527-y5328cd8fa
  • SHA256 fe12a8772f3bb4fc8eb97e4a4a5470cbdaf44178281318a73a052eb43078bafb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • 7f6f1a71bebae5a113e0de986c62d83471cee5c8

Attributes
  • url4cnc

    https://tttttt.me/baudemars

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58e2e7edce382e5dcf6bf862b5b0c420.exe
    "C:\Users\Admin\AppData\Local\Temp\58e2e7edce382e5dcf6bf862b5b0c420.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\58e2e7edce382e5dcf6bf862b5b0c420.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:468

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1200-59-0x00000000768B1000-0x00000000768B3000-memory.dmp

        memory/1200-60-0x0000000000250000-0x00000000002E1000-memory.dmp

        memory/1200-61-0x0000000000400000-0x0000000000493000-memory.dmp