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Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/08/2024, 02:07

General

  • Target

    f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe

  • Size

    1.0MB

  • MD5

    a3a1178a681a45c960b0ed5d0c47926b

  • SHA1

    9048f61cab453a6d4eb6ebae1bd2f913350975d9

  • SHA256

    f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713

  • SHA512

    974b0726a47312b9ecf429d4ba7716e196448655e24775f9443c5cc5b5a3fb790ef917baf30dc0da4907c9298ddff10fd411b806103a261dcc926c0f008ce0e3

  • SSDEEP

    24576:78+0suO3PuzmSe//zGdg7Vbo11Im2YJAssiWV9w9pTNLo:juO/uzmN/CdSmfUqPx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.106.127.79:5679

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-7VNLX4

  • 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 14 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
    "C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.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:4892
    • 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\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:916
    • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
      "C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe"
      2⤵
        PID:1764
      • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
        "C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe"
        2⤵
          PID:2284
        • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
          "C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2852
          • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
            C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe /stext "C:\Users\Admin\AppData\Local\Temp\xvssnb"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:2172
          • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
            C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe /stext "C:\Users\Admin\AppData\Local\Temp\ipfcgltdt"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:544
          • C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe
            C:\Users\Admin\AppData\Local\Temp\f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe /stext "C:\Users\Admin\AppData\Local\Temp\kjkvgedxgjaqq"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3156

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kdatxhxe.vx0.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        ea01dd92b15d2f570f6b167dad2d1fd0

        SHA1

        7b89141d4c3eb2f29d096f28a9bfe66eb006224a

        SHA256

        0515f49138d74283f9ac1042fd1a384f715b74c2b99193454dbb0cd585097727

        SHA512

        0e7695aea30250a41829fa4abb681b8c3ed4c0955e18f1f9f3a5456bfb3a76f016f538e557bf29b99ab6ab48c846f9fa3c4bccd8cb5fe73099a81b5946029ec8

      • memory/544-63-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/544-65-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/544-67-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/916-47-0x0000000005FC0000-0x0000000005FF2000-memory.dmp

        Filesize

        200KB

      • memory/916-60-0x0000000007390000-0x0000000007A0A000-memory.dmp

        Filesize

        6.5MB

      • memory/916-93-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/916-88-0x0000000007070000-0x0000000007078000-memory.dmp

        Filesize

        32KB

      • memory/916-87-0x0000000007090000-0x00000000070AA000-memory.dmp

        Filesize

        104KB

      • memory/916-83-0x0000000006F90000-0x0000000006FA4000-memory.dmp

        Filesize

        80KB

      • memory/916-78-0x0000000006F80000-0x0000000006F8E000-memory.dmp

        Filesize

        56KB

      • memory/916-18-0x00000000748EE000-0x00000000748EF000-memory.dmp

        Filesize

        4KB

      • memory/916-19-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/916-21-0x0000000000C70000-0x0000000000CA6000-memory.dmp

        Filesize

        216KB

      • memory/916-76-0x0000000006F50000-0x0000000006F61000-memory.dmp

        Filesize

        68KB

      • memory/916-75-0x0000000006FD0000-0x0000000007066000-memory.dmp

        Filesize

        600KB

      • memory/916-42-0x0000000005570000-0x00000000058C4000-memory.dmp

        Filesize

        3.3MB

      • memory/916-29-0x0000000004BE0000-0x0000000004C02000-memory.dmp

        Filesize

        136KB

      • memory/916-46-0x0000000005AD0000-0x0000000005B1C000-memory.dmp

        Filesize

        304KB

      • memory/916-64-0x0000000006DC0000-0x0000000006DCA000-memory.dmp

        Filesize

        40KB

      • memory/916-22-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/916-58-0x00000000069F0000-0x0000000006A0E000-memory.dmp

        Filesize

        120KB

      • memory/916-59-0x0000000006A10000-0x0000000006AB3000-memory.dmp

        Filesize

        652KB

      • memory/916-45-0x0000000005A00000-0x0000000005A1E000-memory.dmp

        Filesize

        120KB

      • memory/916-61-0x0000000006D50000-0x0000000006D6A000-memory.dmp

        Filesize

        104KB

      • memory/916-27-0x0000000004E20000-0x0000000005448000-memory.dmp

        Filesize

        6.2MB

      • memory/916-30-0x0000000004D00000-0x0000000004D66000-memory.dmp

        Filesize

        408KB

      • memory/916-31-0x0000000004D70000-0x0000000004DD6000-memory.dmp

        Filesize

        408KB

      • memory/916-48-0x0000000070FE0000-0x000000007102C000-memory.dmp

        Filesize

        304KB

      • memory/2172-71-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2172-66-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2172-62-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2852-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-90-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-37-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-12-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-102-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-25-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-101-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-26-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-99-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-100-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-97-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-98-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-16-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-95-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-94-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-44-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-89-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-85-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2852-17-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-84-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2852-86-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2852-80-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2852-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/3156-68-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3156-70-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3156-69-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4892-3-0x0000000005030000-0x00000000050C2000-memory.dmp

        Filesize

        584KB

      • memory/4892-7-0x00000000748EE000-0x00000000748EF000-memory.dmp

        Filesize

        4KB

      • memory/4892-8-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/4892-2-0x00000000056C0000-0x0000000005C64000-memory.dmp

        Filesize

        5.6MB

      • memory/4892-5-0x0000000005690000-0x000000000569A000-memory.dmp

        Filesize

        40KB

      • memory/4892-9-0x00000000064F0000-0x00000000065B0000-memory.dmp

        Filesize

        768KB

      • memory/4892-4-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/4892-6-0x0000000006A60000-0x0000000006A78000-memory.dmp

        Filesize

        96KB

      • memory/4892-10-0x0000000008ED0000-0x0000000008F6C000-memory.dmp

        Filesize

        624KB

      • memory/4892-20-0x00000000748E0000-0x0000000075090000-memory.dmp

        Filesize

        7.7MB

      • memory/4892-1-0x0000000000510000-0x000000000061C000-memory.dmp

        Filesize

        1.0MB

      • memory/4892-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

        Filesize

        4KB