Analysis

  • max time kernel
    56s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    24-07-2020 11:15

General

  • Target

    76588c314562d37bb78ac1e33cca4c5a.exe

  • Size

    1.3MB

  • MD5

    76588c314562d37bb78ac1e33cca4c5a

  • SHA1

    48a538a6a8cb9aa47fc82777025bb3a8f1e40cee

  • SHA256

    fe2098696d0ffebd614ae0278538e204a1e2120521e3782639695d0f14021dc9

  • SHA512

    1fef714d952541d3c0e8860ae46479a352e16a96d6d98bbaf48ecbab14ad1ed103f5e1e1592eb5e3f82eb7c9fdec9031937dd00586a4858059bb4a43fecd60ed

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: 2020.07.24 - 11:15:24 GMT Bot_ID: BAE8C589-5DA1-4C62-BE46-F8D74908CB8C_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: 154.61.71.51 - 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 (410 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

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

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

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Deletes itself 1 IoCs
  • JavaScript code in executable 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76588c314562d37bb78ac1e33cca4c5a.exe
    "C:\Users\Admin\AppData\Local\Temp\76588c314562d37bb78ac1e33cca4c5a.exe"
    1⤵
    • Modifies system certificate store
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:240
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\76588c314562d37bb78ac1e33cca4c5a.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \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/1920-8-0x0000000000000000-mapping.dmp

  • memory/1936-9-0x0000000000000000-mapping.dmp