Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 14:51

General

  • Target

    INTECHRFQEN241813.exe

  • Size

    682KB

  • MD5

    f9848165fbabe0f8b34fb5d830b2fecc

  • SHA1

    2c53840921153910eb84270e4e12d07e82b1451d

  • SHA256

    a19b171658151c4a4af32dd17474a8184cc37a0d99138ae540177e15cebd9093

  • SHA512

    6dac265560ea2e03036a7737862893695ba512d2e9084325db0f1a56ba8022bd5ce4fd98fea4c515e9536e4d41a8f8845abfee128856640e374ec5055af4837c

  • SSDEEP

    12288:7++g+++++++++++++++++G++++++++++++++++++++K++++Ubv+++++++++++++2:7++g+++++++++++++++++G+++++++++o

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

69.61.31.229:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-EPE0FD

  • 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.

  • Remcos family
  • Detected Nirsoft tools 6 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Accesses Microsoft Outlook accounts 1 TTPs 3 IoCs
  • Blocklisted process makes network request 9 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 9 IoCs
  • Drops file in Windows directory 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: MapViewOfSection 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INTECHRFQEN241813.exe
    "C:\Users\Admin\AppData\Local\Temp\INTECHRFQEN241813.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle minimized "$Sontag=gc -Raw 'C:\Users\Admin\AppData\Roaming\Mirror\radials.Glu';$Dividivis=$Sontag.SubString(54192,3);.$Dividivis($Sontag)"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3304
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\lyioyrxnyanw"
          4⤵
            PID:2600
          • C:\Windows\SysWOW64\msiexec.exe
            C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\lyioyrxnyanw"
            4⤵
              PID:3504
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\lyioyrxnyanw"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:1020
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\oanyzkihmifbhbym"
              4⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:2860
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\yutrzcsiaqxojimqxja"
              4⤵
                PID:3528
              • C:\Windows\SysWOW64\msiexec.exe
                C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\yutrzcsiaqxojimqxja"
                4⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3976
              • C:\Windows\SysWOW64\msiexec.exe
                C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\rzezmkmslwxr"
                4⤵
                  PID:3756
                • C:\Windows\SysWOW64\msiexec.exe
                  C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\rzezmkmslwxr"
                  4⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2876
                • C:\Windows\SysWOW64\msiexec.exe
                  C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\btjkmdxtzepenubl"
                  4⤵
                  • Accesses Microsoft Outlook accounts
                  • System Location Discovery: System Language Discovery
                  PID:3636
                • C:\Windows\SysWOW64\msiexec.exe
                  C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\lnpdnvinnmhjpappply"
                  4⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4692
                • C:\Windows\SysWOW64\msiexec.exe
                  C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dajqmxivyhnzybspa"
                  4⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  PID:3164
                • C:\Windows\SysWOW64\msiexec.exe
                  C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\gvoimqtpmpfebpotkgtqn"
                  4⤵
                    PID:3856
                  • C:\Windows\SysWOW64\msiexec.exe
                    C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\gvoimqtpmpfebpotkgtqn"
                    4⤵
                    • Accesses Microsoft Outlook accounts
                    • System Location Discovery: System Language Discovery
                    PID:2148
                  • C:\Windows\SysWOW64\msiexec.exe
                    C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\qptbnieqaxxrlwcxbrfryhia"
                    4⤵
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3668

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\ProgramData\remcos\logs.dat

              Filesize

              102B

              MD5

              c55e2334f544f2d79761d38863607a0a

              SHA1

              0ee94541022ab10e63a50d5e9243babae3a10b49

              SHA256

              00f9be2380131b031dd6f9a0068a6131b3d10f79b035e2f25485ce857049deb2

              SHA512

              afe3dd9f751e56a8f089ca04e7d0f7a4e3d8e18bd134d4ed373e75a583c93f91eb35acfbbdaa7f20ca96908b8cf818305903ae5e1e1a833f77013222226ce1c3

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bshnx0j2.qxn.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\bhvC2ED.tmp

              Filesize

              14.0MB

              MD5

              efe92496446b580e1a42d2c2b31c8433

              SHA1

              64bf99a1036f6aa944963823ec98b1ce029c0e0a

              SHA256

              ba71368949601670e26041c590001f2ac7d7a5793b4a96faf60efa5c22aeac7a

              SHA512

              88ff40c7cab8e1ca4c92300e8fac17d5f9a90b54f3c687768bbbe1327d21bf93eea3fd4d579dba7662092f321110dbf9d1c655bf9ad9218dce354e8086c01b72

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

              Filesize

              4KB

              MD5

              16dfb23eaa7972c59c36fcbc0946093b

              SHA1

              1e9e3ff83a05131575f67e202d352709205f20f8

              SHA256

              36c49c94327c8cadcad4c0d2b3a8f5162fc7bb86624923484476c5f7b960bc4c

              SHA512

              a8b38b5e7bf886b78c5c7f01234b44647a252d4dfbcc06c99b863f8e160e3cfc151b2a83b8b49e09d13e8547419467da4bffbb8dee5fc6740032eb7c839d89dc

            • C:\Users\Admin\AppData\Roaming\Mirror\Mnage.Uro

              Filesize

              336KB

              MD5

              876aa040a7c4760384b7b4cb49ea1fc1

              SHA1

              e9d2855670fcc3ca4244687da0f8b74087a61325

              SHA256

              6c30940c90bf68d8461f05835248c1d10e002c59d448458e01c4b18ae3afe70f

              SHA512

              4a52f6e778f06888a9955d50fc6cbfae1200b0fc8b6ed867ec6d6db7b965189b05ee6aa8b25de78afabde0a4db15c5f113ac366c088c5a5c0d23164c0504dee1

            • C:\Users\Admin\AppData\Roaming\Mirror\radials.Glu

              Filesize

              52KB

              MD5

              48bfb2d69f3a797169c8b44b71e7bb6a

              SHA1

              2a3e1bb359707f2ad6325b2f8520e95945ebc6fe

              SHA256

              95da5b6aa5c574eda69ebc3c020ad6163faa508e9bb37dd42f9b4290adc61ef0

              SHA512

              688344cc79016b6678acae2a4302b945f81cf5f9abc81b9c783b2d94381d11d4c3b8d2d066452be8ea21c8312cdd3ef59d4a41d0f95496a072a071c8dadbaf1d

            • memory/320-62-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-48-0x0000000007570000-0x0000000007581000-memory.dmp

              Filesize

              68KB

            • memory/320-10-0x0000000005600000-0x0000000005622000-memory.dmp

              Filesize

              136KB

            • memory/320-12-0x00000000058B0000-0x0000000005916000-memory.dmp

              Filesize

              408KB

            • memory/320-11-0x00000000057D0000-0x0000000005836000-memory.dmp

              Filesize

              408KB

            • memory/320-22-0x0000000005920000-0x0000000005C74000-memory.dmp

              Filesize

              3.3MB

            • memory/320-23-0x0000000005EA0000-0x0000000005EBE000-memory.dmp

              Filesize

              120KB

            • memory/320-24-0x0000000005F40000-0x0000000005F8C000-memory.dmp

              Filesize

              304KB

            • memory/320-26-0x00000000063A0000-0x00000000063BA000-memory.dmp

              Filesize

              104KB

            • memory/320-27-0x0000000006410000-0x0000000006432000-memory.dmp

              Filesize

              136KB

            • memory/320-25-0x0000000006E50000-0x0000000006EE6000-memory.dmp

              Filesize

              600KB

            • memory/320-28-0x00000000077F0000-0x0000000007D94000-memory.dmp

              Filesize

              5.6MB

            • memory/320-30-0x0000000008420000-0x0000000008A9A000-memory.dmp

              Filesize

              6.5MB

            • memory/320-43-0x00000000072E0000-0x00000000072FE000-memory.dmp

              Filesize

              120KB

            • memory/320-33-0x0000000074BD0000-0x0000000074C1C000-memory.dmp

              Filesize

              304KB

            • memory/320-32-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-31-0x00000000072A0000-0x00000000072D2000-memory.dmp

              Filesize

              200KB

            • memory/320-44-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-47-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-46-0x0000000007410000-0x000000000741A000-memory.dmp

              Filesize

              40KB

            • memory/320-45-0x0000000007310000-0x00000000073B3000-memory.dmp

              Filesize

              652KB

            • memory/320-8-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-49-0x00000000075C0000-0x00000000075CE000-memory.dmp

              Filesize

              56KB

            • memory/320-50-0x00000000075D0000-0x00000000075E4000-memory.dmp

              Filesize

              80KB

            • memory/320-52-0x0000000007600000-0x0000000007608000-memory.dmp

              Filesize

              32KB

            • memory/320-51-0x0000000007610000-0x000000000762A000-memory.dmp

              Filesize

              104KB

            • memory/320-54-0x0000000007690000-0x00000000076B4000-memory.dmp

              Filesize

              144KB

            • memory/320-53-0x0000000007660000-0x000000000768A000-memory.dmp

              Filesize

              168KB

            • memory/320-55-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-56-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-58-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-59-0x000000007347E000-0x000000007347F000-memory.dmp

              Filesize

              4KB

            • memory/320-61-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-60-0x0000000008AA0000-0x000000000D451000-memory.dmp

              Filesize

              73.7MB

            • memory/320-7-0x0000000004FD0000-0x00000000055F8000-memory.dmp

              Filesize

              6.2MB

            • memory/320-63-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-66-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-65-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/320-4-0x000000007347E000-0x000000007347F000-memory.dmp

              Filesize

              4KB

            • memory/320-5-0x00000000028E0000-0x0000000002916000-memory.dmp

              Filesize

              216KB

            • memory/320-9-0x0000000073470000-0x0000000073C20000-memory.dmp

              Filesize

              7.7MB

            • memory/1020-73-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/1020-80-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/1020-75-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/1020-77-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/2860-74-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/2860-78-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/2860-79-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/2876-110-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/2876-108-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/2876-106-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/3304-140-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-158-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-89-0x0000000021F20000-0x0000000021F39000-memory.dmp

              Filesize

              100KB

            • memory/3304-155-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-99-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-71-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-102-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-67-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-152-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-149-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-92-0x0000000021F20000-0x0000000021F39000-memory.dmp

              Filesize

              100KB

            • memory/3304-93-0x0000000021F20000-0x0000000021F39000-memory.dmp

              Filesize

              100KB

            • memory/3304-146-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-143-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-121-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3304-96-0x0000000000690000-0x00000000018E4000-memory.dmp

              Filesize

              18.3MB

            • memory/3636-111-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/3636-109-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/3976-81-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3976-82-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3976-83-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4692-116-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4692-117-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB