Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2024 13:09

General

  • Target

    DHL Shipment Document Waybill NO # 1363232194.exe

  • Size

    2.3MB

  • MD5

    2a65843b474feff5256bd673b4ff88ae

  • SHA1

    0c80fb17f84d478941ab4d51fddcccaf274da31d

  • SHA256

    d07cfaeced4e8bba1c9fdc8006dc80105cf654759c4d74d4d2d2964a0f6e9230

  • SHA512

    7f8a5a684273a031b648129870d493c9a2d63838a8179b8ce32e2c94f956c1a1196ef404d346e6ca42016489fa949b985bc598111dde0249c64c12a668b77292

  • SSDEEP

    49152:E2u/BMdg532rpsjCMqigjns2+a95PlpiH9MzMrcgt4hzNriBldyQJ/MqmG:DrpEZI0BnlJNh

Malware Config

Extracted

Family

remcos

Botnet

Dollar Man

C2

178.23.190.118:52499

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-SJ9MVF

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Detected Nirsoft tools 9 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Shipment Document Waybill NO # 1363232194.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Document Waybill NO # 1363232194.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4380
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
      2⤵
        PID:1696
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5024
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\vhpgyjhxnsxdnrahvrccrdolmmrdkifu"
          3⤵
            PID:4036
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\vhpgyjhxnsxdnrahvrccrdolmmrdkifu"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3132
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\fjvy"
            3⤵
            • Accesses Microsoft Outlook accounts
            PID:4292
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\qeirzuc"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1640

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        f4d47443bc952bfa3f4b7d6c9914ce9b

        SHA1

        0f38c0d8bb18abe96a6282de1cbbd629769250b9

        SHA256

        e335007d3b35a0899bb5ddad84bd2de968f46f790c6615c82ad172399acbc4c8

        SHA512

        c812416b2db10b382fcae1c758b170b279deada88dde0dc13844d82a9356d33e18f207af427e3ab71e1406fef169f5a182f608aaea912fe315781a4372d8e6b0

      • C:\Users\Admin\AppData\Local\Temp\vhpgyjhxnsxdnrahvrccrdolmmrdkifu

        Filesize

        4KB

        MD5

        71e3611290752b1a114e303d84e3987f

        SHA1

        210794023f369235615743c802fce5055961ee6e

        SHA256

        5163d0e849d5d39f1e8beb9d13beea8240d532dff6f28433522148628007af06

        SHA512

        d0235dd58f9038009e44c4847535f2bb652f093418fdfd890c01b4b9d8981df3a31e4a89f9099c226becbfe8541015d60f6b852165241d08cb8795d93dd2eb09

      • memory/1640-20-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1640-22-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1640-27-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1640-24-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1640-29-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3132-35-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3132-30-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3132-26-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3132-18-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3132-14-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4292-25-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4292-16-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4292-28-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4292-19-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4292-23-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/5024-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-40-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5024-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-10-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-9-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-8-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-6-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-7-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-3-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-2-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-37-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5024-0-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-41-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5024-42-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-43-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-44-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-49-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-1-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-52-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-53-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-60-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-61-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-77-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5024-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB