Analysis

  • max time kernel
    149s
  • max time network
    145s
  • 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 15:17

General

  • Target

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

  • Size

    928KB

  • MD5

    04d4d4d83e1601d220f83f09ae16cd79

  • SHA1

    4f0a7d8060399a7ae5029690bdee2bf3b2e3e395

  • SHA256

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8

  • SHA512

    87747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c

  • SSDEEP

    24576:bhdtlx9EP2aKUQ6/FfCH1bGl4rg5YWNexNBpqod:bhdrY+aPQiFgDWcxNzqi

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

C2

sungito2.ddns.net:6509

154.216.19.222:5532

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-LXAZN2

  • 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 10 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.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: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\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1076
    • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
      "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
        PID:1056
      • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
        "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3524
        • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
          C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\sbepkngoefne"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3684
        • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
          C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\cvkalfrpsnfrade"
          3⤵
            PID:5000
          • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
            C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\cvkalfrpsnfrade"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:3028
          • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
            C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\mxpsmycjgvxwkrahgs"
            3⤵
              PID:4224
            • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
              C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\mxpsmycjgvxwkrahgs"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1704

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          4eb34ae7cb0bcd2cda428d0e0d627c02

          SHA1

          ee5523e5e5de7c6368e5cc3050a160f9409b0607

          SHA256

          392726d5fea5e78e9a30181594a620c2d9b65ef7e42f659871974cb4b82dae4f

          SHA512

          7e4e315a516920cd3b5051113b38a28deb3d53993389df5013c04a9e723fa22a365d668e2ab2a51b2daa57d59012e6fd0ebe989c81577d397e9afbeb1ae9bd03

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xnx2qfwf.ybo.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

          Filesize

          4KB

          MD5

          1891919175c888ce82e9bd8a047b01ad

          SHA1

          502a6892a5d27ecb791ac5aa6d8586944f540453

          SHA256

          a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec

          SHA512

          8bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3

        • memory/1076-81-0x00000000077F0000-0x0000000007E6A000-memory.dmp

          Filesize

          6.5MB

        • memory/1076-83-0x0000000007220000-0x000000000722A000-memory.dmp

          Filesize

          40KB

        • memory/1076-92-0x0000000074A40000-0x00000000751F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1076-89-0x00000000074D0000-0x00000000074D8000-memory.dmp

          Filesize

          32KB

        • memory/1076-88-0x00000000074F0000-0x000000000750A000-memory.dmp

          Filesize

          104KB

        • memory/1076-87-0x00000000073F0000-0x0000000007404000-memory.dmp

          Filesize

          80KB

        • memory/1076-86-0x00000000073E0000-0x00000000073EE000-memory.dmp

          Filesize

          56KB

        • memory/1076-85-0x00000000073B0000-0x00000000073C1000-memory.dmp

          Filesize

          68KB

        • memory/1076-84-0x0000000007430000-0x00000000074C6000-memory.dmp

          Filesize

          600KB

        • memory/1076-82-0x00000000071B0000-0x00000000071CA000-memory.dmp

          Filesize

          104KB

        • memory/1076-72-0x00000000070A0000-0x0000000007143000-memory.dmp

          Filesize

          652KB

        • memory/1076-71-0x0000000006480000-0x000000000649E000-memory.dmp

          Filesize

          120KB

        • memory/1076-60-0x0000000006440000-0x0000000006472000-memory.dmp

          Filesize

          200KB

        • memory/1076-61-0x00000000711A0000-0x00000000711EC000-memory.dmp

          Filesize

          304KB

        • memory/1076-45-0x0000000005F20000-0x0000000005F6C000-memory.dmp

          Filesize

          304KB

        • memory/1076-21-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

          Filesize

          4KB

        • memory/1076-23-0x0000000074A40000-0x00000000751F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1076-25-0x0000000004F70000-0x0000000005598000-memory.dmp

          Filesize

          6.2MB

        • memory/1076-44-0x0000000005E90000-0x0000000005EAE000-memory.dmp

          Filesize

          120KB

        • memory/1076-24-0x0000000074A40000-0x00000000751F0000-memory.dmp

          Filesize

          7.7MB

        • memory/1076-22-0x0000000004900000-0x0000000004936000-memory.dmp

          Filesize

          216KB

        • memory/1076-40-0x0000000005840000-0x0000000005B94000-memory.dmp

          Filesize

          3.3MB

        • memory/1076-29-0x0000000004EC0000-0x0000000004EE2000-memory.dmp

          Filesize

          136KB

        • memory/1076-31-0x00000000056A0000-0x0000000005706000-memory.dmp

          Filesize

          408KB

        • memory/1076-32-0x0000000005780000-0x00000000057E6000-memory.dmp

          Filesize

          408KB

        • memory/1704-59-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1704-57-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1704-58-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1900-7-0x00000000749AE000-0x00000000749AF000-memory.dmp

          Filesize

          4KB

        • memory/1900-8-0x00000000749A0000-0x0000000075150000-memory.dmp

          Filesize

          7.7MB

        • memory/1900-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

          Filesize

          4KB

        • memory/1900-1-0x00000000008C0000-0x00000000009AA000-memory.dmp

          Filesize

          936KB

        • memory/1900-5-0x00000000749A0000-0x0000000075150000-memory.dmp

          Filesize

          7.7MB

        • memory/1900-9-0x00000000066D0000-0x0000000006790000-memory.dmp

          Filesize

          768KB

        • memory/1900-6-0x00000000058C0000-0x00000000058D8000-memory.dmp

          Filesize

          96KB

        • memory/1900-2-0x00000000058F0000-0x0000000005E94000-memory.dmp

          Filesize

          5.6MB

        • memory/1900-4-0x00000000053B0000-0x00000000053BA000-memory.dmp

          Filesize

          40KB

        • memory/1900-20-0x00000000749A0000-0x0000000075150000-memory.dmp

          Filesize

          7.7MB

        • memory/1900-10-0x0000000006990000-0x0000000006A2C000-memory.dmp

          Filesize

          624KB

        • memory/1900-3-0x00000000053E0000-0x0000000005472000-memory.dmp

          Filesize

          584KB

        • memory/3028-52-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3028-50-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3028-56-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3524-18-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-80-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-12-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-123-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-107-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-78-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3524-27-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-15-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-75-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3524-13-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-30-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-11-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-28-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-124-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-26-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-33-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-115-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-47-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-94-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-100-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-99-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-79-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3524-108-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3524-116-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3684-49-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3684-51-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3684-48-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB