Analysis

  • max time kernel
    137s
  • max time network
    110s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08-07-2020 15:20

General

  • Target

    evtrbz5n6um7j54g7.exe

  • Size

    1.4MB

  • MD5

    5de08824a170627fed763ecbcbf60290

  • SHA1

    57a2d4ff47c401e2619ba8626a8c91c6b34377b6

  • SHA256

    69fe5bb4b975f9437b6c3bcf3f07dc807a8f2e848f1e0c5802012295b06a742c

  • SHA512

    08f3f322e12c7c5d51028254208fda2763d5029d4d4bfb10cc31b2712cc659c7ffdfe1665efae40f4b55639d80ba7ca47a16ddfbc437397b03d56f8c6e81277c

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: 2020.07.08 - 15:20:37 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 (415 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Extracted

Family

raccoon

Botnet

9e58d12176867642b44a41ce838ee2f495fc57ff

Attributes
  • url4cnc

    https://telete.in/jrikitiki

rc4.plain
rc4.plain

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

oski

C2

raymond.ug

Extracted

Family

asyncrat

Version

0.5.7B

C2

giuseppe.ug:6970

asdxcvxdfgdnbvrwe.ru:6970

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    wmNKpUVCpNWhhJQblim2nnNgKrbxeGKV

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    Default

  • host

    giuseppe.ug,asdxcvxdfgdnbvrwe.ru

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    6970

  • version

    0.5.7B

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Contains code to disable Windows Defender 4 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Async RAT payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 10 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 26 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Drops desktop.ini file(s) 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\evtrbz5n6um7j54g7.exe
    "C:\Users\Admin\AppData\Local\Temp\evtrbz5n6um7j54g7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\HJnbva.exe
      "C:\Users\Admin\AppData\Local\Temp\HJnbva.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:484
      • C:\Users\Admin\AppData\Local\Temp\HJnbva.exe
        "C:\Users\Admin\AppData\Local\Temp\HJnbva.exe"
        3⤵
        • Executes dropped EXE
        PID:1048
    • C:\Users\Admin\AppData\Local\Temp\IOmsda.exe
      "C:\Users\Admin\AppData\Local\Temp\IOmsda.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Users\Admin\AppData\Local\Temp\IOmsda.exe
        "C:\Users\Admin\AppData\Local\Temp\IOmsda.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 1744 & erase C:\Users\Admin\AppData\Local\Temp\IOmsda.exe & RD /S /Q C:\\ProgramData\\693089157969621\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 1744
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1952
    • C:\Users\Admin\AppData\Local\Temp\evtrbz5n6um7j54g7.exe
      "C:\Users\Admin\AppData\Local\Temp\evtrbz5n6um7j54g7.exe"
      2⤵
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Users\Admin\AppData\Local\Temp\GMXQNRtJZj.exe
        "C:\Users\Admin\AppData\Local\Temp\GMXQNRtJZj.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:484
        • C:\Windows\SysWOW64\TapiUnattend.exe
          "C:\Windows\System32\TapiUnattend.exe"
          4⤵
            PID:1808
        • C:\Users\Admin\AppData\Local\Temp\6mnSLGWWt9.exe
          "C:\Users\Admin\AppData\Local\Temp\6mnSLGWWt9.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          PID:1848
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KahrGgYA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58C9.tmp"
            4⤵
            • Creates scheduled task(s)
            PID:2192
          • C:\Users\Admin\AppData\Local\Temp\6mnSLGWWt9.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            PID:2348
        • C:\Users\Admin\AppData\Local\Temp\w6MaV8rMHj.exe
          "C:\Users\Admin\AppData\Local\Temp\w6MaV8rMHj.exe"
          3⤵
          • Executes dropped EXE
          PID:1752
        • C:\Users\Admin\AppData\Local\Temp\6l1pgQiDki.exe
          "C:\Users\Admin\AppData\Local\Temp\6l1pgQiDki.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          PID:1036
          • C:\Users\Admin\AppData\Local\Temp\6l1pgQiDki.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            • Windows security modification
            PID:2164
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "powershell" Get-MpPreference -verbose
              5⤵
                PID:2280
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\evtrbz5n6um7j54g7.exe"
            3⤵
            • Deletes itself
            • Suspicious use of WriteProcessMemory
            PID:472
            • C:\Windows\SysWOW64\timeout.exe
              timeout /T 10 /NOBREAK
              4⤵
              • Delays execution with timeout.exe
              PID:1560

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/1048-16-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1048-22-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1052-17-0x0000000000400000-0x0000000000497000-memory.dmp

        Filesize

        604KB

      • memory/1052-12-0x0000000000400000-0x0000000000497000-memory.dmp

        Filesize

        604KB

      • memory/1744-25-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1744-28-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2164-145-0x0000000000400000-0x0000000000408000-memory.dmp

        Filesize

        32KB

      • memory/2164-143-0x0000000000400000-0x0000000000408000-memory.dmp

        Filesize

        32KB

      • memory/2164-139-0x0000000000400000-0x0000000000408000-memory.dmp

        Filesize

        32KB

      • memory/2348-151-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB