Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 08:54

General

  • Target

    pdtzx.scr.exe

  • Size

    984KB

  • MD5

    98e7bfbf542d7b12f7b7614991743557

  • SHA1

    9eec15369db22c4bcdf39407042545715466292b

  • SHA256

    2320bdd2ef439c3c079ecf8c1c89ff9e8d2c20ed47f459c29186b00c476fa7d4

  • SHA512

    2411a485a66d6aafbe59a576afadb78c1cffd13f4b09595155fe2a9e5f03d57eb2f102cf924e8ebf6918449661197f270e7143c7ce938bdd4dfdaaf277a6e5f9

  • SSDEEP

    24576:6oOBrBls3VEr6ZgFMH+zfQE75oZUPgVQwDqsQ1xAT/qH3:10BlsDZgFMqS1Axu/qH

Malware Config

Extracted

Family

remcos

Botnet

28PDT

C2

psolver827.ddns.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

    28pdt

  • mouse_option

    false

  • mutex

    Rmc-9BVBM5

  • 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.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1236
    • 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\pdtzx.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:720
      • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
        C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe /stext "C:\Users\Admin\AppData\Local\Temp\dccfmofjrzmuqzcaosootzhmrie"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4512
      • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
        C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe /stext "C:\Users\Admin\AppData\Local\Temp\ffhpngqkfhezagyefdjhwebdaonmuj"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:5052
      • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
        C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe /stext "C:\Users\Admin\AppData\Local\Temp\pzuioyjetpwedmmioowjhrwmbdfvnuncy"
        3⤵
          PID:4504
        • C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe
          C:\Users\Admin\AppData\Local\Temp\pdtzx.scr.exe /stext "C:\Users\Admin\AppData\Local\Temp\pzuioyjetpwedmmioowjhrwmbdfvnuncy"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2684

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\28pdt\logs.dat

            Filesize

            144B

            MD5

            ea1da3dbbb06b6a5ebb50dbedc993ed2

            SHA1

            2097d4fb2d7ec7fd26641ca1eecd3044a02b1ea9

            SHA256

            5fb023a54316194a930d0a03908749f4ccfefbc93842b94b494cce73284dc5f7

            SHA512

            6ca10d0cf27edfaa3b6964bfbb2726b007883f28d81f1d413f2f431c916a603bb7279379bdd32254ffb0f98f18bf0635168500f701cb0ef11d4df6d1ca8710ce

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xw11yhrw.0ko.psm1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

            Filesize

            4KB

            MD5

            fc8ceff5210efa58594c67ed8f49a824

            SHA1

            dba98c98becbdf81f623cdca6cd0a993022fe6cd

            SHA256

            778b7d5b90428961459c82e9881fe0fece78424d6301eb0720a96f100511f599

            SHA512

            c3b24fe5f5ba39174528ffc05544da6f22ac6aef2cac923ad139c0d044989873e004f9f5018cc0cc6847b5878f5aee96d6de823c860ac54a0fc67ff8d2d89cd1

          • memory/720-40-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-23-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-68-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/720-71-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/720-73-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/720-74-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/720-75-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-109-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-11-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-12-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-15-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-138-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-137-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-18-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-130-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-21-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-24-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-129-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-111-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/720-42-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-114-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-121-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-41-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-122-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-113-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-64-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/720-39-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/1236-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

            Filesize

            5.6MB

          • memory/1236-3-0x00000000050C0000-0x0000000005152000-memory.dmp

            Filesize

            584KB

          • memory/1236-17-0x0000000074500000-0x0000000074CB0000-memory.dmp

            Filesize

            7.7MB

          • memory/1236-4-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

            Filesize

            64KB

          • memory/1236-10-0x0000000007B50000-0x0000000007BEC000-memory.dmp

            Filesize

            624KB

          • memory/1236-1-0x0000000074500000-0x0000000074CB0000-memory.dmp

            Filesize

            7.7MB

          • memory/1236-9-0x00000000069F0000-0x0000000006AB0000-memory.dmp

            Filesize

            768KB

          • memory/1236-8-0x0000000004A80000-0x0000000004A8C000-memory.dmp

            Filesize

            48KB

          • memory/1236-7-0x0000000005460000-0x0000000005468000-memory.dmp

            Filesize

            32KB

          • memory/1236-6-0x0000000005440000-0x000000000545C000-memory.dmp

            Filesize

            112KB

          • memory/1236-5-0x0000000005070000-0x000000000507A000-memory.dmp

            Filesize

            40KB

          • memory/1236-0-0x00000000006A0000-0x0000000000798000-memory.dmp

            Filesize

            992KB

          • memory/2648-96-0x00000000075E0000-0x00000000075EA000-memory.dmp

            Filesize

            40KB

          • memory/2648-103-0x00000000078A0000-0x00000000078BA000-memory.dmp

            Filesize

            104KB

          • memory/2648-26-0x0000000005280000-0x00000000052A2000-memory.dmp

            Filesize

            136KB

          • memory/2648-14-0x0000000002910000-0x0000000002946000-memory.dmp

            Filesize

            216KB

          • memory/2648-33-0x0000000005390000-0x00000000053F6000-memory.dmp

            Filesize

            408KB

          • memory/2648-27-0x0000000005320000-0x0000000005386000-memory.dmp

            Filesize

            408KB

          • memory/2648-16-0x0000000074500000-0x0000000074CB0000-memory.dmp

            Filesize

            7.7MB

          • memory/2648-38-0x0000000005D00000-0x0000000006054000-memory.dmp

            Filesize

            3.3MB

          • memory/2648-22-0x0000000004E40000-0x0000000004E50000-memory.dmp

            Filesize

            64KB

          • memory/2648-107-0x0000000074500000-0x0000000074CB0000-memory.dmp

            Filesize

            7.7MB

          • memory/2648-104-0x0000000007880000-0x0000000007888000-memory.dmp

            Filesize

            32KB

          • memory/2648-25-0x0000000005480000-0x0000000005AA8000-memory.dmp

            Filesize

            6.2MB

          • memory/2648-77-0x00000000061D0000-0x00000000061EE000-memory.dmp

            Filesize

            120KB

          • memory/2648-78-0x00000000062A0000-0x00000000062EC000-memory.dmp

            Filesize

            304KB

          • memory/2648-80-0x0000000004E40000-0x0000000004E50000-memory.dmp

            Filesize

            64KB

          • memory/2648-81-0x0000000006830000-0x0000000006862000-memory.dmp

            Filesize

            200KB

          • memory/2648-82-0x0000000070930000-0x000000007097C000-memory.dmp

            Filesize

            304KB

          • memory/2648-92-0x0000000006810000-0x000000000682E000-memory.dmp

            Filesize

            120KB

          • memory/2648-93-0x0000000007230000-0x00000000072D3000-memory.dmp

            Filesize

            652KB

          • memory/2648-94-0x0000000007BB0000-0x000000000822A000-memory.dmp

            Filesize

            6.5MB

          • memory/2648-95-0x0000000007560000-0x000000000757A000-memory.dmp

            Filesize

            104KB

          • memory/2648-19-0x0000000004E40000-0x0000000004E50000-memory.dmp

            Filesize

            64KB

          • memory/2648-97-0x00000000077E0000-0x0000000007876000-memory.dmp

            Filesize

            600KB

          • memory/2648-98-0x0000000007760000-0x0000000007771000-memory.dmp

            Filesize

            68KB

          • memory/2648-99-0x0000000007790000-0x000000000779E000-memory.dmp

            Filesize

            56KB

          • memory/2648-100-0x0000000004E40000-0x0000000004E50000-memory.dmp

            Filesize

            64KB

          • memory/2648-101-0x00000000077A0000-0x00000000077B4000-memory.dmp

            Filesize

            80KB

          • memory/2648-102-0x0000000074500000-0x0000000074CB0000-memory.dmp

            Filesize

            7.7MB

          • memory/2684-49-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/2684-51-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/2684-55-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/2684-58-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4512-48-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4512-43-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4512-66-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4512-54-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4512-57-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/5052-47-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/5052-44-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/5052-53-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/5052-56-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/5052-59-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB