Analysis

  • max time kernel
    84s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27/05/2021, 18:52

General

  • Target
    fe08b9e6b42be27d92edecd906a7b800.exe
  • Size 552KB
  • Sample210527-tbf768seqx
  • SHA256 be4ed9fb0354aaa2ef474bdf0c618617c075467f3ee96d813c1ed8ed89b74b0f
  • 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
  • Loads dropped DLL 5 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
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe08b9e6b42be27d92edecd906a7b800.exe
    "C:\Users\Admin\AppData\Local\Temp\fe08b9e6b42be27d92edecd906a7b800.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3984
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\fe08b9e6b42be27d92edecd906a7b800.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3936
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1648

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3984-114-0x00000000020A0000-0x0000000002131000-memory.dmp

        memory/3984-115-0x0000000000400000-0x0000000000492000-memory.dmp