Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 02:01

General

  • Target

    00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe

  • Size

    1.0MB

  • MD5

    b29b16ebb9b0e72685abcb3d1bb10ecb

  • SHA1

    0447f64739d8b3ff0f1eaa9f8a33ac4bf5a83b9e

  • SHA256

    00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9

  • SHA512

    11caef5f251c76848cb02b9c7a4a4bd070fabcca11b5dc5b65e8e4c74b3ac1618fd775712a4a839324713d538d935dc6afc9767c2990bed1736448cd43d1419c

  • SSDEEP

    24576:nEFEYFTBWob0zYtxuPjwx6EEsRId90km:EFxFISxUwDRE9T

Malware Config

Extracted

Family

remcos

Botnet

8846455

C2

windowsoctarem.duckdns.org:56892

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

    4765-HH3V0S

  • 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.

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
    "C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zkCXHdkRhSWE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3424
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkCXHdkRhSWE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE31C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3112
    • C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
      "C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"
      2⤵
        PID:4712
      • C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
        "C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"
        2⤵
          PID:4384
        • C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe
          "C:\Users\Admin\AppData\Local\Temp\00a87ff3c6352b93575ed9b1122a9c77750c2b31e9ee4051e518c582a83b26a9.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:1804

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1hwubrvh.p0s.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpE31C.tmp

        Filesize

        1KB

        MD5

        40f905b638959ff233730f37f4c3dd83

        SHA1

        359e97727b0e62a28f46e8ce4b59f416a5ef13c0

        SHA256

        dd70aea351a49371fddb6fdd82f441d01e08db6b6e640b5ae339739be168f752

        SHA512

        1c38dbd722b00d3c0d7b4edeb098ab166ab51bd5e848ba71eb1f632d468849f05b74088b1f12df6c4e334f13286ea9640d8adfd7285e84a48aae9f148ce8da70

      • memory/1804-76-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-104-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-127-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-126-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-125-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-124-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-123-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-122-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-121-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-120-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-119-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-77-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-118-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-117-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-116-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-29-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-115-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-36-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-114-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-38-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-113-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-112-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-111-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-110-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-40-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-39-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-109-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-108-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-43-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-44-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-107-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-106-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-105-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-91-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-103-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-102-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-101-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-100-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-78-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-99-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-98-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-97-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-96-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-95-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-68-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-94-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-72-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-73-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-74-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-75-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-93-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-92-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-62-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-79-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-80-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-81-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-82-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-83-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-84-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-85-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-86-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-87-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-88-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-89-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/1804-90-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/3424-41-0x0000000006700000-0x000000000671E000-memory.dmp

        Filesize

        120KB

      • memory/3424-20-0x0000000005780000-0x00000000057A2000-memory.dmp

        Filesize

        136KB

      • memory/3424-15-0x00000000051A0000-0x00000000051D6000-memory.dmp

        Filesize

        216KB

      • memory/3424-71-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3424-67-0x0000000007D70000-0x0000000007D78000-memory.dmp

        Filesize

        32KB

      • memory/3424-66-0x0000000007D90000-0x0000000007DAA000-memory.dmp

        Filesize

        104KB

      • memory/3424-65-0x0000000007C90000-0x0000000007CA4000-memory.dmp

        Filesize

        80KB

      • memory/3424-64-0x0000000007C80000-0x0000000007C8E000-memory.dmp

        Filesize

        56KB

      • memory/3424-63-0x0000000007C50000-0x0000000007C61000-memory.dmp

        Filesize

        68KB

      • memory/3424-61-0x0000000007CD0000-0x0000000007D66000-memory.dmp

        Filesize

        600KB

      • memory/3424-60-0x0000000007AC0000-0x0000000007ACA000-memory.dmp

        Filesize

        40KB

      • memory/3424-59-0x0000000007A50000-0x0000000007A6A000-memory.dmp

        Filesize

        104KB

      • memory/3424-58-0x0000000008090000-0x000000000870A000-memory.dmp

        Filesize

        6.5MB

      • memory/3424-57-0x0000000007910000-0x00000000079B3000-memory.dmp

        Filesize

        652KB

      • memory/3424-56-0x00000000078E0000-0x00000000078FE000-memory.dmp

        Filesize

        120KB

      • memory/3424-45-0x0000000006CF0000-0x0000000006D22000-memory.dmp

        Filesize

        200KB

      • memory/3424-46-0x0000000071000000-0x000000007104C000-memory.dmp

        Filesize

        304KB

      • memory/3424-42-0x00000000067A0000-0x00000000067EC000-memory.dmp

        Filesize

        304KB

      • memory/3424-16-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3424-18-0x0000000005810000-0x0000000005E38000-memory.dmp

        Filesize

        6.2MB

      • memory/3424-21-0x0000000005FB0000-0x0000000006016000-memory.dmp

        Filesize

        408KB

      • memory/3424-22-0x0000000006110000-0x0000000006176000-memory.dmp

        Filesize

        408KB

      • memory/3424-23-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3424-19-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3424-34-0x0000000006180000-0x00000000064D4000-memory.dmp

        Filesize

        3.3MB

      • memory/4684-1-0x0000000000010000-0x000000000011C000-memory.dmp

        Filesize

        1.0MB

      • memory/4684-37-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/4684-2-0x0000000005160000-0x0000000005704000-memory.dmp

        Filesize

        5.6MB

      • memory/4684-3-0x0000000004AF0000-0x0000000004B82000-memory.dmp

        Filesize

        584KB

      • memory/4684-6-0x0000000005130000-0x0000000005148000-memory.dmp

        Filesize

        96KB

      • memory/4684-10-0x0000000007450000-0x00000000074EC000-memory.dmp

        Filesize

        624KB

      • memory/4684-9-0x00000000071A0000-0x000000000725E000-memory.dmp

        Filesize

        760KB

      • memory/4684-8-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB

      • memory/4684-7-0x000000007481E000-0x000000007481F000-memory.dmp

        Filesize

        4KB

      • memory/4684-0-0x000000007481E000-0x000000007481F000-memory.dmp

        Filesize

        4KB

      • memory/4684-5-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

        Filesize

        40KB

      • memory/4684-4-0x0000000074810000-0x0000000074FC0000-memory.dmp

        Filesize

        7.7MB