Overview

overview

10

Static

static

1

SecuriteIn...51.exe

windows7-x64

10

SecuriteIn...51.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    161s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/11/2022, 04:41

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General

  • Target
    SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.1903.6551.exe
  • Size 516KB
  • Sample221111-fa4f1shbc7
  • SHA256 c03cfddda1ce6811ac0aa6cd6d9957e688a3fd37c02a16c15af285bff2c9b04f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosxp_no startuppersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • Xp_no startup

C2

  • xpremcuz300622.ddns.net:3542

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-419DY7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

    ratremcos
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.1903.6551.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.1903.6551.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
      "C:\Users\Admin\AppData\Local\Temp\umnrkin.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        "C:\Users\Admin\AppData\Local\Temp\umnrkin.exe"
        3⤵
        • Executes dropped EXE
        PID:1896
      • C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        "C:\Users\Admin\AppData\Local\Temp\umnrkin.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:808

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cyvaazygr.rtd
        • Path C:\Users\Admin\AppData\Local\Temp\cyvaazygr.rtd
        • Size 7KB
        • SHA256 9ecdf6459c809dd076e81c1517a7677ed6b6e212848f632d0437539b6c05a9d6
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        heawrdkwqx.vts
        • Path C:\Users\Admin\AppData\Local\Temp\heawrdkwqx.vts
        • Size 464KB
        • SHA256 dec8966cd399c2645d7dcbae1141802ba494b4c0528db4e73cfc32c95056b9a3
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path C:\Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path \Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path \Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        umnrkin.exe
        • Path \Users\Admin\AppData\Local\Temp\umnrkin.exe
        • Size 74KB
        • SHA256 c21143b93a95d28ee1138424e1fc03c7f86faae6f0cc6c14b572e8a81406edf1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/808-68-0x0000000000400000-0x000000000047B000-memory.dmp
        Download

        memory/808-69-0x0000000000400000-0x000000000047B000-memory.dmp
        Download

        memory/1508-54-0x0000000074C91000-0x0000000074C93000-memory.dmp
        Download