Analysis

  • max time kernel
    144s
  • max time network
    57s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    02-08-2020 11:08

General

  • Target

    4706fb3c6a51d56dc6bffeb7bd0cbd0f.exe

  • Size

    1.1MB

  • MD5

    4706fb3c6a51d56dc6bffeb7bd0cbd0f

  • SHA1

    a5a4c48a5dc9e6ed143b1bbe170e60c835237996

  • SHA256

    bc28d041b1a3ad91cff978ead6542ab8b1041fd94dc8731c43494831706184f7

  • SHA512

    d7b9e8f0d94eb2ab64ece60527b83e3b8029806dc7b215e8bac71b9b4b2c38ad66e78098504b9a5f88536eb05e73883a6916b53d35814d7d1cda7e88ada0e2c9

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: 2020.08.02 - 13:08:45 GMT Bot_ID: 18823CA4-5761-4226-8787-CF36135F1C68_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: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: LZUKLIOU - 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 (710 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Signatures

  • Loads dropped DLL 6 IoCs
  • JavaScript code in executable 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • 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 log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Suspicious use of WriteProcessMemory 6 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4706fb3c6a51d56dc6bffeb7bd0cbd0f.exe
    "C:\Users\Admin\AppData\Local\Temp\4706fb3c6a51d56dc6bffeb7bd0cbd0f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:496
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\4706fb3c6a51d56dc6bffeb7bd0cbd0f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3560
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1864

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

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\mozglue.dll
  • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll
  • \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll
  • \Users\Admin\AppData\LocalLow\sqlite3.dll
  • memory/1864-11-0x0000000000000000-mapping.dmp
  • memory/3560-9-0x0000000000000000-mapping.dmp