Analysis

  • max time kernel
    105s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7v200217
  • submitted
    18-02-2020 15:12

General

  • Target

    pa1reui4zmqkzf1.exe

  • Size

    5.5MB

  • MD5

    faba8d1f0a1c89d9bde654edb128da56

  • SHA1

    c64d7afcfd3605acc7ff3ce8959f7976c0de437b

  • SHA256

    7c0f865eb289347327a93774d91a5154cfdaf5e3a31318bedf5024463bcac4eb

  • SHA512

    73a35c72783ea3c13228116efca8fde220271e4dbd73c19834ae97dacc91df528e432e4daa25b1bd8bda680b534929054c2bb7b57d9f5be119d2b00b65f70a25

Malware Config

Extracted

Path

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

Family

raccoon

Ransom Note
[Raccoon Stealer] - v1.4.2 Release Build compiled on Tue Dec 17 14:14:55 2019 Launched at: 2020.02.18 - 16:12:51 GMT Bot_ID: CB3421D8-E2C8-4B12-9D02-76148B2A4ECF_Admin ============ System Information: - System Language: English - System TimeZone: -0 hrs - ComputerName: JLKTGBTU - Username: Admin - IP: 154.61.71.13 - Windows version: NT 6.1 - Product name: Windows 7 Professional - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 2047 MB (382 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Extracted

Family

raccoon

Botnet

89379f5371f470435351b0d002d50f28a65fff02

C2

http://104.155.44.42/gate/log.php

Attributes
  • url4cnc

    https://drive.google.com/uc?export=download&id=1jN5ZmsLRZEQEtxsUIIVXnSOKaqBdnX6Z

rc4.plain
rc4.plain

Signatures

  • Loads dropped DLL 5 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Reads browser user data or profiles (possible credential harvesting) 2 TTPs
  • Checks for installed software on the system 1 TTPs 28 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Suspicious use of WriteProcessMemory 13 IoCs
  • Suspicious use of SetThreadContext 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pa1reui4zmqkzf1.exe
    "C:\Users\Admin\AppData\Local\Temp\pa1reui4zmqkzf1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1836
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • Modifies system certificate store
      • Checks for installed software on the system
      PID:1860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\LocalLow\AdLibs\mozglue.dll

  • \Users\Admin\AppData\LocalLow\AdLibs\msvcp140.dll

  • \Users\Admin\AppData\LocalLow\AdLibs\nss3.dll

  • \Users\Admin\AppData\LocalLow\AdLibs\vcruntime140.dll

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

  • memory/1860-0-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/1860-1-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB