Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 01:03

General

  • Target

    156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe

  • Size

    1.0MB

  • MD5

    06288ac34c34b1751dca19951d6140f8

  • SHA1

    e3af412db4368c7a3c7b3a0a812c2af6903bb697

  • SHA256

    156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75

  • SHA512

    47cd551807523783db43570df4d3ab4edb52699b8a118b91453c12aa5c5ca3b746a023ce6b5b0561754f876671136312b9aa725d6a8c5fec0ef004231caaf039

  • SSDEEP

    24576:FyAXOCNGRx9s8Qbzjx84azkY9zIe8BIPX66Id:FyQOyax9sbjNaznzbmIvrId

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-PW8G0U

  • 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 3 IoCs

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
    "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2992
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZukuCcvWAQW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2392
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZukuCcvWAQW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8E4B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2712
    • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
      "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
        C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\ameclyhrtppqwtlldsopzzoblcfilayzr"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2804
      • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
        C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\lgjulq"
        3⤵
          PID:2640
        • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
          C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\lgjulq"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:2012
        • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
          C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\vapnmjcmd"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Local\Temp\tmp8E4B.tmp

      Filesize

      1KB

      MD5

      57b1a9bdfaac7754d4461ca2eee08b93

      SHA1

      62c5b719182190e64164cceaacb3cac21bef2ec1

      SHA256

      524c6627852677b30271f94bd6860d412a9c4dc5243a790ebe78247af3b46ba1

      SHA512

      bb2b5ae6e3653382ff36631409138815bc033f2a4c0c4c773ba7319b994dc74fb522e315fb79e3886915926a1341a3f89d90882b328df6f1a15b8e48697f3ec7

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      c9d16f017e892e2b517b5ebe3300206b

      SHA1

      dddc335b15512d2d4f1a5a03447a9a8ce29b4c0c

      SHA256

      9bbcdc1fd5d34bf9b11a5c2c7aeaf7177dd9c1c85a8f8255fc3e6cfdd66dbda7

      SHA512

      8d0803ae8a126e94d87a97af1be9f7d409935b71d155c75cf0953637fca387237c0e4ffc4b7a1fa441a23cec2e76e878811838807e170ab681f4a6febf1ff35f

    • memory/1900-3-0x0000000000430000-0x000000000044E000-memory.dmp

      Filesize

      120KB

    • memory/1900-4-0x000000007475E000-0x000000007475F000-memory.dmp

      Filesize

      4KB

    • memory/1900-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

      Filesize

      6.9MB

    • memory/1900-6-0x0000000005B20000-0x0000000005BE0000-memory.dmp

      Filesize

      768KB

    • memory/1900-39-0x0000000074750000-0x0000000074E3E000-memory.dmp

      Filesize

      6.9MB

    • memory/1900-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

      Filesize

      6.9MB

    • memory/1900-1-0x0000000000E90000-0x0000000000F94000-memory.dmp

      Filesize

      1.0MB

    • memory/1900-0-0x000000007475E000-0x000000007475F000-memory.dmp

      Filesize

      4KB

    • memory/2012-55-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2012-54-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2012-53-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2084-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-32-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-23-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-21-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2084-40-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-42-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-70-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-69-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2084-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2084-68-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2084-65-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2084-19-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2368-58-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2368-59-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2368-57-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2804-50-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2804-51-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2804-49-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB