Analysis

  • max time kernel
    22s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    02/08/2021, 18:56

General

  • Target
    e7712697b1259ff1a3f8cbfa6435c069b4127af3316ea.exe
  • Size 599KB
  • Sample210802-16vmrnqee2
  • SHA256 e7712697b1259ff1a3f8cbfa6435c069b4127af3316ea52aa740d5ae8cf2bd4b
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • 16a39305e75d7034b96e725c3f1dd72b36d25c64

Attributes
  • url4cnc

    https://telete.in/hi3krasav4ik

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Raccoon Stealer Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 9 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e7712697b1259ff1a3f8cbfa6435c069b4127af3316ea.exe
    "C:\Users\Admin\AppData\Local\Temp\e7712697b1259ff1a3f8cbfa6435c069b4127af3316ea.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\NM80McY73j.exe
      "C:\Users\Admin\AppData\Local\Temp\NM80McY73j.exe"
      2⤵
      • Executes dropped EXE
      PID:1472
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\e7712697b1259ff1a3f8cbfa6435c069b4127af3316ea.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:364

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/640-59-0x0000000074F31000-0x0000000074F33000-memory.dmp

        memory/640-61-0x0000000000400000-0x0000000003290000-memory.dmp

        memory/640-60-0x0000000004AC0000-0x0000000004B53000-memory.dmp

        memory/1472-77-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/1472-76-0x0000000000220000-0x0000000000224000-memory.dmp