Analysis

  • max time kernel
    66s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    31-07-2020 11:34

General

  • Target

    5fffa2ad508c9515472253ba9710e372.exe

  • Size

    460KB

  • MD5

    5fffa2ad508c9515472253ba9710e372

  • SHA1

    d648fb349ce16abfa9a24e3324d4f9c3b4f6199b

  • SHA256

    8fdbe70d55f048a7ee67510ac78997d90032616bd5b8fa2be84b9cd0a1b9e498

  • SHA512

    791ce0a27e7f3cea54db3adb25c9d4f2f376f762261f8bb4f494659fa3ebebf1bd65c8a20002e03a9d7c021cf3c7d0051a156a8f34b7c30c9d157345cb2eb45a

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: 2020.07.31 - 11:34:21 GMT Bot_ID: 664A9041-4AC4-46F3-B3DC-87DB4D57890E_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 5 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.51 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: GOHCSFBB - Username: Admin - Windows version: NT 10.0 - Product name: Windows 10 Pro - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 4095 MB (686 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Signatures

  • JavaScript code in executable 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Delays execution with timeout.exe 1 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Loads dropped DLL 8 IoCs
  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fffa2ad508c9515472253ba9710e372.exe
    "C:\Users\Admin\AppData\Local\Temp\5fffa2ad508c9515472253ba9710e372.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\5fffa2ad508c9515472253ba9710e372.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3796
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:3364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll

  • \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\nss3.dll

  • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll

  • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll

  • \Users\Admin\AppData\LocalLow\sqlite3.dll

  • memory/2532-0-0x00000000036D9000-0x00000000036DA000-memory.dmp

    Filesize

    4KB

  • memory/2532-1-0x0000000005220000-0x0000000005221000-memory.dmp

    Filesize

    4KB

  • memory/3364-15-0x0000000000000000-mapping.dmp

  • memory/3796-14-0x0000000000000000-mapping.dmp