Analysis

  • max time kernel
    115s
  • max time network
    106s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    10-08-2020 17:14

General

  • Target

    d7f91b80a7fd68240320fd69f43853c73878927e.exe

  • Size

    1.1MB

  • MD5

    eaac66f1ed8fc1a960ae866012cf6437

  • SHA1

    d7f91b80a7fd68240320fd69f43853c73878927e

  • SHA256

    299ff43465ed213c038adf7cde8c57df986b6267dfbb5599ca6925d1bf95f35a

  • SHA512

    0d8a0301601e9ba484649a9dddea61b091631820503b8e7069a61122adb09160db909a9361387256552e6a29ad6890571117fa9d48b12fcce7b6cf03bb28bbf9

Malware Config

Extracted

Path

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

Family

raccoon

Ransom Note
[Raccoon Stealer] - v1.5.13-af-hotfix Release Build compiled on Mon Jul 6 14:33:03 2020 Launched at: 2020.08.10 - 19:16:21 GMT Bot_ID: 750D7400-3B08-415E-A8B0-2695D81425F5_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 0 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: UCQFZDUI - 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 (419 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 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.

  • JavaScript code in executable 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe
    "C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eLQuoCLxGvR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD00.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1348
    • C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe
      "C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe"
      2⤵
        PID:1804
      • C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe
        "C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe"
        2⤵
        • Loads dropped DLL
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1816
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\d7f91b80a7fd68240320fd69f43853c73878927e.exe"
          3⤵
          • Deletes itself
          • Suspicious use of WriteProcessMemory
          PID:584
          • C:\Windows\SysWOW64\timeout.exe
            timeout /T 10 /NOBREAK
            4⤵
            • Delays execution with timeout.exe
            PID:1060

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpAD00.tmp
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\mozglue.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\msvcp140.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll
    • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\vcruntime140.dll
    • \Users\Admin\AppData\LocalLow\sqlite3.dll
    • memory/584-20-0x0000000000000000-mapping.dmp
    • memory/836-0-0x0000000074E00000-0x00000000754EE000-memory.dmp
      Filesize

      6.9MB

    • memory/836-5-0x0000000005080000-0x0000000005112000-memory.dmp
      Filesize

      584KB

    • memory/836-4-0x0000000004FD0000-0x0000000005077000-memory.dmp
      Filesize

      668KB

    • memory/836-3-0x0000000000400000-0x0000000000404000-memory.dmp
      Filesize

      16KB

    • memory/836-1-0x00000000000B0000-0x00000000000B1000-memory.dmp
      Filesize

      4KB

    • memory/1060-21-0x0000000000000000-mapping.dmp
    • memory/1348-6-0x0000000000000000-mapping.dmp
    • memory/1816-10-0x0000000000400000-0x0000000000493000-memory.dmp
      Filesize

      588KB

    • memory/1816-9-0x000000000043FA98-mapping.dmp
    • memory/1816-8-0x0000000000400000-0x0000000000493000-memory.dmp
      Filesize

      588KB

    • memory/1924-11-0x000007FEF8550000-0x000007FEF87CA000-memory.dmp
      Filesize

      2.5MB