Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2025 07:36

General

  • Target

    SIP_20252780935456808324578723572956.exe

  • Size

    1.0MB

  • MD5

    725d50e3d1d33e570efef92c4f72dd1c

  • SHA1

    059a6d565986ab372f99a7e86ea612aad3c6e190

  • SHA256

    76a9a68e8da599c81f44d2a43fb4fe5e5e4d2e6c5881ccf775ecd665c16939d8

  • SHA512

    1b9ee427dc492b9451ae4530f0e234bcc9002df681351591da14102d9464ca99f07678f8fbf3d82dd8deaccc42d2f318ab1b40256e25098a51ff1484280a3cf9

  • SSDEEP

    24576:JhNsRGf7gedBIuxEi6Vm0oGLyMryTptU242bY96DVjaFF:JXsleXIoA4eLyXt5k6ZjoF

Malware Config

Extracted

Family

remcos

Botnet

MONDAY454

C2

sungito333.ddns.net:5590

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-R5Q1RM

  • 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 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 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of web browsers 3 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 8 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
    "C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2684
    • 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\SIP_20252780935456808324578723572956.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1264
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cORjjxAPNjnQU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cORjjxAPNjnQU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF1E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2832
    • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
      "C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe"
      2⤵
        PID:2736
      • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
        "C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
          C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
          3⤵
            PID:1576
          • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
            C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
            3⤵
              PID:1440
            • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
              C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
              3⤵
                PID:1720
              • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
                C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
                3⤵
                  PID:2868
                • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
                  C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
                  3⤵
                    PID:1340
                  • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
                    C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\zcullmugzwwowirc"
                    3⤵
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2100
                  • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
                    C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\jwawmefineoayongtww"
                    3⤵
                    • Accesses Microsoft Outlook accounts
                    • System Location Discovery: System Language Discovery
                    PID:2044
                  • C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe
                    C:\Users\Admin\AppData\Local\Temp\SIP_20252780935456808324578723572956.exe /stext "C:\Users\Admin\AppData\Local\Temp\uyfpnxpbbmgfjdbkchjvhv"
                    3⤵
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1872

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\remcos\logs.dat

                Filesize

                144B

                MD5

                baade3a98ecb1c84627b37c9b3f881a5

                SHA1

                942a999a18a36de6b69da68f9b473e1d4e383f54

                SHA256

                13e3c25bdd0c4862b6a29b80b8e5f3013553b0b315b76b75a5d6783d81708dd6

                SHA512

                64d65219b9135eb1c8292474944cef4fed619458d1f9ae1b414f1ff68e1a8d3c585fd4a4fa3778a3ca7354c726916c9907af2f15febb971dc46e4f3c93360518

              • C:\Users\Admin\AppData\Local\Temp\tmpF1E.tmp

                Filesize

                1KB

                MD5

                623e57e7085bdbc3042529c541591420

                SHA1

                68138b32e2240cd43b8515d96b45ce109d20d499

                SHA256

                3182ce86a68178fcc2696012f88239bf83ccfa3f72eab7fd838bbfd3a3ee9b92

                SHA512

                b8292c80069ff79ddac31c9dc143c89ab446944ba08f6de15a6a41a083a2ae88a93d654d5dbf3375936985c3f0298a8e1cf2f433b0b38f37772346d7c20c8899

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

                Filesize

                2B

                MD5

                f3b25701fe362ec84616a93a45ce9998

                SHA1

                d62636d8caec13f04e28442a0a6fa1afeb024bbb

                SHA256

                b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                SHA512

                98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

                Filesize

                7KB

                MD5

                475bdfb7016af32d5d4ab5c5ec7e8f4a

                SHA1

                88d95b7ae5843499b56da007b375edbc6598ff5a

                SHA256

                4caece4e19d675d8b3ad2b240e5d8a1bca41b48ef7e75a9dfd3dfbfc37bb9fe9

                SHA512

                34368e4719b26633311850b614c6ffe83d9af652acf834a69a64fa4c17992f49f048c294c1b7808fdf8ef32d2d54a6c7f079de0b1d029c2b18f17188e29f105c

              • memory/1872-57-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/1872-55-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/1872-56-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/2044-53-0x0000000000400000-0x0000000000462000-memory.dmp

                Filesize

                392KB

              • memory/2044-49-0x0000000000400000-0x0000000000462000-memory.dmp

                Filesize

                392KB

              • memory/2044-51-0x0000000000400000-0x0000000000462000-memory.dmp

                Filesize

                392KB

              • memory/2100-52-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/2100-50-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/2100-47-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/2644-42-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-71-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                Filesize

                4KB

              • memory/2644-25-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-23-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-21-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-29-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-27-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-39-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-40-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-41-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-103-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-45-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-34-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-37-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-102-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-33-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-19-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-95-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-94-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-87-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-86-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-79-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-64-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-65-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-66-0x0000000010000000-0x0000000010019000-memory.dmp

                Filesize

                100KB

              • memory/2644-70-0x0000000010000000-0x0000000010019000-memory.dmp

                Filesize

                100KB

              • memory/2644-69-0x0000000010000000-0x0000000010019000-memory.dmp

                Filesize

                100KB

              • memory/2644-32-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2644-78-0x0000000000400000-0x0000000000480000-memory.dmp

                Filesize

                512KB

              • memory/2684-1-0x00000000001C0000-0x00000000002C8000-memory.dmp

                Filesize

                1.0MB

              • memory/2684-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

                Filesize

                6.9MB

              • memory/2684-3-0x0000000000660000-0x000000000067E000-memory.dmp

                Filesize

                120KB

              • memory/2684-4-0x00000000748FE000-0x00000000748FF000-memory.dmp

                Filesize

                4KB

              • memory/2684-5-0x00000000748F0000-0x0000000074FDE000-memory.dmp

                Filesize

                6.9MB

              • memory/2684-6-0x0000000005CF0000-0x0000000005DB4000-memory.dmp

                Filesize

                784KB

              • memory/2684-38-0x00000000748F0000-0x0000000074FDE000-memory.dmp

                Filesize

                6.9MB

              • memory/2684-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

                Filesize

                4KB