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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2024, 10:10

General

  • Target

    869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe

  • Size

    604KB

  • MD5

    ffc880a6448b251eee7f03809bf0a1bf

  • SHA1

    09e75e38d588b0e99a3f6f85b2dc4a3eebe4ee08

  • SHA256

    869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d

  • SHA512

    21dbc92495d2afa76e2e0b7243586ce70889e6cf1240222f1c75aab217df9a0287f9b9b5f3c754011ecfec411c2677c3fd091bcb2b620205c2c97db564b7b180

  • SSDEEP

    12288:O+DbgZB778Qed59T3C6g9XltKMYicJgTx5bx4OVEIHDe2RZQioKEAmD:3gZBS9TbgoMpcJ+Tbe7Ye2nOK

Score
10/10

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

NHS

C2

185.189.112.19:30311

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • 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_folder

    nhs

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_lejjhxgdnt

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
    "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1748
    • 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\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3020
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RqlVhjJtK.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1508
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RqlVhjJtK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF4B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4684
    • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
      "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
      2⤵
        PID:4536
      • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
        "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
        2⤵
          PID:1552
        • C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe
          "C:\Users\Admin\AppData\Local\Temp\869d82f75b419b649177813ee10ff71987aa775e0c86868bb952aab22f6fe91d.exe"
          2⤵
          • Suspicious use of SetWindowsHookEx
          PID:4376

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        7cba94cbaee4233b30e533fe5d53bf5d

        SHA1

        4e9c3d217229d53e563484ccf47209177a61ba5e

        SHA256

        0b72d01b414e56f79e3320767e195976fa467e8e6f9e32f09df4db53ed2f2c69

        SHA512

        8796c3d694267abbe344b5bbefe36dffe7254d9f3e3c2d051b6ebee0dc929cf9a564ab1b31fdeb82b0a2a4e132b0a77475398fc8f6b36d4690e3044cccbf3dc0

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hidh2quy.tpl.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpAF4B.tmp

        Filesize

        1KB

        MD5

        1705d1b9a73959b690c9254ade83a2ae

        SHA1

        e84f64fcfd26efc3855546605762972b6ff7937c

        SHA256

        8a560024000a3c013af92204cd4a2d64c905d05199ddb5374ff39004fd4b3d15

        SHA512

        2981ad50701769e057615366fbb5028c0c78b0bc5edc5768c82130d052573640a8d5ff930e71d5606695db142c10b52bd39359f41fcaeecf475a1255d4a38d7d

      • memory/1508-81-0x00000000070F0000-0x00000000070FA000-memory.dmp

        Filesize

        40KB

      • memory/1508-40-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1508-56-0x0000000006320000-0x0000000006352000-memory.dmp

        Filesize

        200KB

      • memory/1508-57-0x0000000074F00000-0x0000000074F4C000-memory.dmp

        Filesize

        304KB

      • memory/1508-55-0x0000000005E20000-0x0000000005E6C000-memory.dmp

        Filesize

        304KB

      • memory/1508-54-0x0000000005D40000-0x0000000005D5E000-memory.dmp

        Filesize

        120KB

      • memory/1508-22-0x0000000004C90000-0x0000000004CB2000-memory.dmp

        Filesize

        136KB

      • memory/1508-23-0x0000000005510000-0x0000000005576000-memory.dmp

        Filesize

        408KB

      • memory/1508-80-0x0000000007080000-0x000000000709A000-memory.dmp

        Filesize

        104KB

      • memory/1508-68-0x0000000006300000-0x000000000631E000-memory.dmp

        Filesize

        120KB

      • memory/1508-94-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1508-82-0x0000000007300000-0x0000000007396000-memory.dmp

        Filesize

        600KB

      • memory/1508-87-0x00000000073A0000-0x00000000073A8000-memory.dmp

        Filesize

        32KB

      • memory/1508-21-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1508-86-0x00000000073C0000-0x00000000073DA000-memory.dmp

        Filesize

        104KB

      • memory/1508-24-0x0000000005630000-0x0000000005696000-memory.dmp

        Filesize

        408KB

      • memory/1748-12-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1748-1-0x0000000000820000-0x00000000008BC000-memory.dmp

        Filesize

        624KB

      • memory/1748-2-0x00000000057F0000-0x0000000005D94000-memory.dmp

        Filesize

        5.6MB

      • memory/1748-3-0x00000000052E0000-0x0000000005372000-memory.dmp

        Filesize

        584KB

      • memory/1748-5-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1748-4-0x00000000052C0000-0x00000000052CA000-memory.dmp

        Filesize

        40KB

      • memory/1748-53-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/1748-0-0x000000007465E000-0x000000007465F000-memory.dmp

        Filesize

        4KB

      • memory/1748-11-0x000000007465E000-0x000000007465F000-memory.dmp

        Filesize

        4KB

      • memory/1748-10-0x0000000008CD0000-0x0000000008D6C000-memory.dmp

        Filesize

        624KB

      • memory/1748-9-0x0000000005790000-0x00000000057F0000-memory.dmp

        Filesize

        384KB

      • memory/1748-8-0x0000000005710000-0x0000000005726000-memory.dmp

        Filesize

        88KB

      • memory/1748-7-0x0000000005700000-0x000000000570E000-memory.dmp

        Filesize

        56KB

      • memory/1748-6-0x00000000055C0000-0x00000000055D8000-memory.dmp

        Filesize

        96KB

      • memory/3020-78-0x0000000007320000-0x00000000073C3000-memory.dmp

        Filesize

        652KB

      • memory/3020-41-0x0000000005B50000-0x0000000005EA4000-memory.dmp

        Filesize

        3.3MB

      • memory/3020-46-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/3020-79-0x0000000007AA0000-0x000000000811A000-memory.dmp

        Filesize

        6.5MB

      • memory/3020-17-0x0000000004B90000-0x0000000004BC6000-memory.dmp

        Filesize

        216KB

      • memory/3020-18-0x00000000052D0000-0x00000000058F8000-memory.dmp

        Filesize

        6.2MB

      • memory/3020-93-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/3020-83-0x0000000007660000-0x0000000007671000-memory.dmp

        Filesize

        68KB

      • memory/3020-84-0x0000000007690000-0x000000000769E000-memory.dmp

        Filesize

        56KB

      • memory/3020-85-0x00000000076A0000-0x00000000076B4000-memory.dmp

        Filesize

        80KB

      • memory/3020-67-0x0000000074F00000-0x0000000074F4C000-memory.dmp

        Filesize

        304KB

      • memory/3020-20-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/3020-19-0x0000000074650000-0x0000000074E00000-memory.dmp

        Filesize

        7.7MB

      • memory/4376-47-0x0000000000400000-0x0000000000417000-memory.dmp

        Filesize

        92KB

      • memory/4376-48-0x0000000000400000-0x0000000000417000-memory.dmp

        Filesize

        92KB

      • memory/4376-50-0x0000000000400000-0x0000000000417000-memory.dmp

        Filesize

        92KB