Analysis

  • max time kernel
    98s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v200217
  • submitted
    18-02-2020 15:18

General

  • Target

    4wvbd5ykxwfxg.exe

  • Size

    5.5MB

  • MD5

    45a02b429739d0d3c02e972ec3964eb1

  • SHA1

    2842b9f8f61c85543545946973b4b750b070fde1

  • SHA256

    82214d13917ce35d7a08d47bcd2a053ad385d1f13fed5d06507eeb9471c918b2

  • SHA512

    fded983fdf09401ce0f2633e9dd55623692dc4b29d49ebf49bffabd76e009f8946eb8a35ce2cfcfb5eec5542010229e66ce6fd38b9bae6f82ccc6d5510ae7562

Score
10/10

Malware Config

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

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Suspicious use of WriteProcessMemory 9 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Reads browser user data or profiles (possible credential harvesting) 2 TTPs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4wvbd5ykxwfxg.exe
    "C:\Users\Admin\AppData\Local\Temp\4wvbd5ykxwfxg.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3768
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      PID:3112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1740
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        PID:3476

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

  • memory/3112-0-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/3112-1-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/3476-7-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

    Filesize

    4KB

  • memory/3476-8-0x0000000005A50000-0x0000000005A51000-memory.dmp

    Filesize

    4KB