Analysis

  • max time kernel
    80s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26/05/2021, 17:00

General

  • Target
    7ccbf76d23c03de983a9beaf7672768b.exe
  • Size 551KB
  • Sample210526-hmntntbshs
  • SHA256 9d98cf2a209bc4ccc92b7dc792c6f3b21c0ce1c2f7eb72498823e7a593145fea
  • 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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ccbf76d23c03de983a9beaf7672768b.exe
    "C:\Users\Admin\AppData\Local\Temp\7ccbf76d23c03de983a9beaf7672768b.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3892
    • C:\Users\Admin\AppData\Local\Temp\oEkHiw0AgY.exe
      "C:\Users\Admin\AppData\Local\Temp\oEkHiw0AgY.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3776
      • C:\Windows\SysWOW64\schtasks.exe
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe"
        3⤵
        • Creates scheduled task(s)
        PID:1088
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\7ccbf76d23c03de983a9beaf7672768b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3496
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1808
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe"
      2⤵
      • Creates scheduled task(s)
      PID:3788

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2872-128-0x0000000000450000-0x000000000059A000-memory.dmp

        memory/2872-129-0x0000000000400000-0x0000000000445000-memory.dmp

        memory/3776-123-0x0000000000580000-0x00000000006CA000-memory.dmp

        memory/3776-124-0x0000000000400000-0x0000000000445000-memory.dmp

        memory/3892-114-0x0000000002160000-0x00000000021F1000-memory.dmp

        memory/3892-115-0x0000000000400000-0x0000000000492000-memory.dmp