Analysis

  • max time kernel
    120s
  • max time network
    102s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    28/06/2020, 16:22

General

  • Target
    c6f0293740a9288faf4f73d42162772d.exe
  • Size 749KB
  • Sample200628-gfpyn1vxt2
  • SHA256 df2688f6f88ea0e66b46d856e514adf25f8456cb4e45c849233799e17b1171e3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\LocalLow\machineinfo.txt

  • raccoon

Ransom Note
  • [Raccoon Stealer] - v1.5.13-af-hotfix Release Build compiled on Tue Jun 23 14:23:14 2020 Launched at: 2020.06.28 - 16:23:26 GMT Bot_ID: BAE8C589-5DA1-4C62-BE46-F8D74908CB8C_Admin Running on a desktop =R=A=C=C=O=O=N= System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.51 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: AVGLFESB - Username: Admin - Windows version: NT 6.1 - Product name: Windows 7 Professional - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 2047 MB (418 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

  • Suspicious use of WriteProcessMemory 537 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Executes dropped EXE 4 IoCs
  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Checks for installed software on the system 1 TTPs 30 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Loads dropped DLL 13 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Reads user/profile data of local email clients 2 TTPs

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

  • Adds Run entry to start application 2 TTPs 1 IoCs
  • Delays execution with timeout.exe 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6f0293740a9288faf4f73d42162772d.exe
    "C:\Users\Admin\AppData\Local\Temp\c6f0293740a9288faf4f73d42162772d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\c6f0293740a9288faf4f73d42162772d.exe
      "{path}"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Drops desktop.ini file(s)
      • Checks for installed software on the system
      • Modifies system certificate store
      • Loads dropped DLL
      PID:680
      • C:\Users\Admin\AppData\Local\Temp\fnqNWNKsDY.exe
        "C:\Users\Admin\AppData\Local\Temp\fnqNWNKsDY.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Adds Run entry to start application
        PID:2016
        • C:\Windows\SysWOW64\TapiUnattend.exe
          "C:\Windows\System32\TapiUnattend.exe"
          4⤵
            PID:1448
          • C:\Program Files (x86)\internet explorer\ieinstal.exe
            "C:\Program Files (x86)\internet explorer\ieinstal.exe"
            4⤵
              PID:2664
          • C:\Users\Admin\AppData\Local\Temp\1Owy9VJ53u.exe
            "C:\Users\Admin\AppData\Local\Temp\1Owy9VJ53u.exe"
            3⤵
            • Executes dropped EXE
            PID:316
          • C:\Users\Admin\AppData\Local\Temp\hsXtmTM5Dp.exe
            "C:\Users\Admin\AppData\Local\Temp\hsXtmTM5Dp.exe"
            3⤵
            • Executes dropped EXE
            PID:1168
          • C:\Users\Admin\AppData\Local\Temp\LmyWFNf3F0.exe
            "C:\Users\Admin\AppData\Local\Temp\LmyWFNf3F0.exe"
            3⤵
            • Executes dropped EXE
            PID:320
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\c6f0293740a9288faf4f73d42162772d.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            • Deletes itself
            PID:824
            • C:\Windows\SysWOW64\timeout.exe
              timeout /T 10 /NOBREAK
              4⤵
              • Delays execution with timeout.exe
              PID:636

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/680-2-0x0000000000400000-0x0000000000493000-memory.dmp

            memory/680-0-0x0000000000400000-0x0000000000493000-memory.dmp

            memory/2016-159-0x0000000010410000-0x0000000010450000-memory.dmp