Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-08-2024 01:17

General

  • Target

    1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe

  • Size

    927KB

  • MD5

    339dcd1a52b9095623e72c678f20ed01

  • SHA1

    a2bd542dcddefc2ece12e47b380bc343ead31604

  • SHA256

    1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60

  • SHA512

    06b4ab19a5cd8957d879ed141e9d9ad5a0c4898d2bb460f4796d2d04014a67a10fe00bc6243a8936c8ec1b9be7d6cf4ce1a8a6c278067e6ea86ed5a2d40150a7

  • SSDEEP

    24576:JBKlj3XZEwjwxSonfaM00VMNSfQ/woYhkToooZ:2ljHZncct7IoY9bZ

Malware Config

Extracted

Family

remcos

Botnet

BCV

C2

tvq3101.sytes.net:1974

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-9PFUGS

  • 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 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.

  • Reads user/profile data of web browsers 2 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
    "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1600
    • 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\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:448
    • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
      "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
        C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\jpcztxyolcnbanwmqeishrqpglrreupht"
        3⤵
          PID:1528
        • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
          C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\jpcztxyolcnbanwmqeishrqpglrreupht"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4316
        • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
          C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\mkhju"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:4396
        • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
          C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\wmmcuatj"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1512

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      318B

      MD5

      861774dd282d9ebddac101e5ce289a11

      SHA1

      0cfd505f908e9161573d54959e2ac645b1440370

      SHA256

      fd28e6b8f52ee1c263347a1131e0472303f37f73e8e68425031aeb18063a5d0e

      SHA512

      0ac485edb3978c268daba60fbd36b24403feb31e9890079b7238aff149294ee2a935f39a222c51f2af4eb2d370ad451d6b437b0618321e78e6670a0f595219e5

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_epbrkzjn.0kb.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      4KB

      MD5

      15e28d82a9ee8a45c10bcf671fef0362

      SHA1

      2b126b086a1191cb8b4d444e87781358d51af3a4

      SHA256

      012fbb5f15d52a9560cf0e77fd36837ec2c56aff7a989d31c3d40d4f6df6cf9d

      SHA512

      3dd749523858a54e7e5ededba47d54715c9d5663dd0bd609363de7442436d1f0e924c5e4706e3ac413b79ddb6a18c796cc0ad166b4c87a3a7a6b009ba77fee82

    • memory/448-56-0x0000000006C40000-0x0000000006C5E000-memory.dmp

      Filesize

      120KB

    • memory/448-45-0x0000000006C60000-0x0000000006C92000-memory.dmp

      Filesize

      200KB

    • memory/448-66-0x0000000007BB0000-0x0000000007BC1000-memory.dmp

      Filesize

      68KB

    • memory/448-17-0x00000000749CE000-0x00000000749CF000-memory.dmp

      Filesize

      4KB

    • memory/448-65-0x0000000007C30000-0x0000000007CC6000-memory.dmp

      Filesize

      600KB

    • memory/448-19-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB

    • memory/448-64-0x0000000007A20000-0x0000000007A2A000-memory.dmp

      Filesize

      40KB

    • memory/448-68-0x0000000007BF0000-0x0000000007C04000-memory.dmp

      Filesize

      80KB

    • memory/448-61-0x00000000079B0000-0x00000000079CA000-memory.dmp

      Filesize

      104KB

    • memory/448-60-0x0000000008000000-0x000000000867A000-memory.dmp

      Filesize

      6.5MB

    • memory/448-18-0x00000000050D0000-0x0000000005106000-memory.dmp

      Filesize

      216KB

    • memory/448-46-0x0000000070C30000-0x0000000070C7C000-memory.dmp

      Filesize

      304KB

    • memory/448-67-0x0000000007BE0000-0x0000000007BEE000-memory.dmp

      Filesize

      56KB

    • memory/448-20-0x00000000057F0000-0x0000000005E18000-memory.dmp

      Filesize

      6.2MB

    • memory/448-28-0x0000000005E90000-0x0000000005EF6000-memory.dmp

      Filesize

      408KB

    • memory/448-69-0x0000000007CF0000-0x0000000007D0A000-memory.dmp

      Filesize

      104KB

    • memory/448-70-0x0000000007CD0000-0x0000000007CD8000-memory.dmp

      Filesize

      32KB

    • memory/448-42-0x0000000006720000-0x000000000676C000-memory.dmp

      Filesize

      304KB

    • memory/448-59-0x0000000007870000-0x0000000007913000-memory.dmp

      Filesize

      652KB

    • memory/448-41-0x00000000066A0000-0x00000000066BE000-memory.dmp

      Filesize

      120KB

    • memory/448-21-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB

    • memory/448-29-0x0000000005F00000-0x0000000005F66000-memory.dmp

      Filesize

      408KB

    • memory/448-23-0x00000000056C0000-0x00000000056E2000-memory.dmp

      Filesize

      136KB

    • memory/448-39-0x00000000061F0000-0x0000000006544000-memory.dmp

      Filesize

      3.3MB

    • memory/448-73-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB

    • memory/1512-80-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1512-76-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1512-79-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1600-9-0x0000000005DA0000-0x0000000005E60000-memory.dmp

      Filesize

      768KB

    • memory/1600-4-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-1-0x0000000000100000-0x00000000001EA000-memory.dmp

      Filesize

      936KB

    • memory/1600-16-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-10-0x0000000006060000-0x00000000060FC000-memory.dmp

      Filesize

      624KB

    • memory/1600-3-0x0000000004BF0000-0x0000000004C82000-memory.dmp

      Filesize

      584KB

    • memory/1600-2-0x00000000050C0000-0x0000000005664000-memory.dmp

      Filesize

      5.6MB

    • memory/1600-5-0x0000000004D80000-0x0000000004D8A000-memory.dmp

      Filesize

      40KB

    • memory/1600-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

      Filesize

      4KB

    • memory/1600-8-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-7-0x00000000749AE000-0x00000000749AF000-memory.dmp

      Filesize

      4KB

    • memory/1600-6-0x00000000078B0000-0x00000000078C8000-memory.dmp

      Filesize

      96KB

    • memory/4316-81-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/4316-74-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/4316-78-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/4396-77-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4396-75-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4396-82-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4652-11-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-24-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-89-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/4652-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-92-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/4652-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-15-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-93-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/4652-14-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-12-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-40-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-22-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-94-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-99-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-100-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-107-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-108-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-115-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-116-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-123-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4652-124-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB