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Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 14:48

General

  • Target

    190920240949TJgGO5EprAaBIME.exe

  • Size

    908KB

  • MD5

    b2125f1650b58eddaa86b18ed64871a5

  • SHA1

    d28fd63324a74b0c61a29e964f863bf79668f9a6

  • SHA256

    717ba8a5452f784b6c8df7936a0c4668720cf0ad480b9dfab9028056d398a466

  • SHA512

    f8620026e270376e561da0d5a2f458b10476db82c426bc8261dfeb66f3d3d2f9ff5d96abd69b712d492ae878b0f2f69da0bf836bed59bc23818062f83b9e7c85

  • SSDEEP

    24576:Xoq0yKtaUx9ekC04qZoAe+QA4VMsN7y1NZSZNGMCgcCzqI+gN8w:4vy2nx9ZMq+AAA51UNGMCgRN8w

Malware Config

Extracted

Family

remcos

Botnet

Sept 03 2024

C2

salonirang.duckdns.org:54604

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

    bookmark

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-SPKD1X

  • 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 2 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 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 14 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
    "C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.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:1116
    • 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\190920240949TJgGO5EprAaBIME.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gVmBHRfidrI.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gVmBHRfidrI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C9B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3168
    • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
      "C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4240
      • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
        C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\lwvsgfdlozphdsdllifbwwlxsj"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4472
      • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
        C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\wzalgqoechhmnyzputsdhbgotyyqn"
        3⤵
          PID:4588
        • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
          C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\wzalgqoechhmnyzputsdhbgotyyqn"
          3⤵
            PID:4464
          • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
            C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\wzalgqoechhmnyzputsdhbgotyyqn"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:3956
          • C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe
            C:\Users\Admin\AppData\Local\Temp\190920240949TJgGO5EprAaBIME.exe /stext "C:\Users\Admin\AppData\Local\Temp\gtfvhizgxpzzpmnblenesoaxbfqzgain"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4976

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        315dfc0f5b514e7b835299640ea84483

        SHA1

        14f88a0749ee0e34580a25c86c0f2f0d9538c348

        SHA256

        57598ec340f8a2a577fec2b5831cb10fb64d75aaf17f0e07a73786728c20e214

        SHA512

        5e361b69b575e5058a4b079a38962f273b5971ab69f08dfd5087978bd7fc7d6d33b84f8af19bcd351359f421b3b1f1bae48b0e108e235f047a5dfcdc3f8eaf29

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h3tspg3a.ewp.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        05d209dc2e52f4877b0210319d699d7c

        SHA1

        f80b9ea3164019831fa0b5cffc864c0d496a002b

        SHA256

        278f3fd9076c23dc3d397375c5f586aa23b15c9e42b22139748e20f70f127160

        SHA512

        701f72884bf941ec3e60f6f8bb98c26743447c276de2d15ca27a406ccc6a39dafeef9a6f83264d52ebb93923af738fa7b16f617fb33dc54e5a7ed93b188aee9a

      • C:\Users\Admin\AppData\Local\Temp\tmp1C9B.tmp

        Filesize

        1KB

        MD5

        2b1d855e08d24bdc942c2ee7f9d0daf1

        SHA1

        3a268b7f66c801d389b6d5f02ebae690006ae45a

        SHA256

        a6a31f5b6bdf6071c605579fdf2271feb49ac719bab4668a3c8bd30cd5cf993b

        SHA512

        7570297763f44fd0ff0328c33a7360f5940988465bb4b1e8a328f50e4b11d6571e42a90bcfca1b8211c2cb45d5c21fc8a5455da4446a86c3a82ac859552b92af

      • C:\Users\Admin\AppData\Roaming\bookmark\logs.dat

        Filesize

        144B

        MD5

        bc01e2493a39bb209546a2846a4055e8

        SHA1

        3605f1dda8fab3ad194acd0475642450fcdf4308

        SHA256

        cb8c867ef025d045a37c67c3c88b18a1f92aaeb7fc2efb12a22e52d13a9b98d6

        SHA512

        8339a07bccaec42a77989371e1ed144902b3732b827902ef87e13c03be45e69bddad4984b1719561155dbd8baa865ed528de4cd41a6747fecf148c2f85312951

      • memory/520-88-0x0000000007E10000-0x0000000007EA6000-memory.dmp

        Filesize

        600KB

      • memory/520-87-0x0000000007C00000-0x0000000007C0A000-memory.dmp

        Filesize

        40KB

      • memory/520-69-0x0000000006E20000-0x0000000006E3E000-memory.dmp

        Filesize

        120KB

      • memory/520-81-0x0000000007850000-0x00000000078F3000-memory.dmp

        Filesize

        652KB

      • memory/520-83-0x0000000007B90000-0x0000000007BAA000-memory.dmp

        Filesize

        104KB

      • memory/520-15-0x0000000002F50000-0x0000000002F86000-memory.dmp

        Filesize

        216KB

      • memory/520-17-0x0000000005AB0000-0x00000000060D8000-memory.dmp

        Filesize

        6.2MB

      • memory/520-16-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/520-51-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/520-21-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/520-82-0x00000000081D0000-0x000000000884A000-memory.dmp

        Filesize

        6.5MB

      • memory/520-59-0x000000006F320000-0x000000006F36C000-memory.dmp

        Filesize

        304KB

      • memory/520-92-0x0000000007DC0000-0x0000000007DCE000-memory.dmp

        Filesize

        56KB

      • memory/520-102-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/1116-2-0x0000000005610000-0x0000000005BB4000-memory.dmp

        Filesize

        5.6MB

      • memory/1116-1-0x00000000006A0000-0x000000000078A000-memory.dmp

        Filesize

        936KB

      • memory/1116-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

        Filesize

        4KB

      • memory/1116-3-0x0000000005160000-0x00000000051F2000-memory.dmp

        Filesize

        584KB

      • memory/1116-4-0x0000000005310000-0x000000000531A000-memory.dmp

        Filesize

        40KB

      • memory/1116-7-0x00000000749FE000-0x00000000749FF000-memory.dmp

        Filesize

        4KB

      • memory/1116-5-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/1116-6-0x00000000055A0000-0x00000000055B0000-memory.dmp

        Filesize

        64KB

      • memory/1116-10-0x0000000009200000-0x000000000929C000-memory.dmp

        Filesize

        624KB

      • memory/1116-9-0x0000000006630000-0x00000000066F2000-memory.dmp

        Filesize

        776KB

      • memory/1116-8-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/1116-56-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3376-38-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3376-57-0x0000000006C90000-0x0000000006CC2000-memory.dmp

        Filesize

        200KB

      • memory/3376-54-0x00000000066F0000-0x000000000670E000-memory.dmp

        Filesize

        120KB

      • memory/3376-20-0x0000000005E60000-0x0000000005EC6000-memory.dmp

        Filesize

        408KB

      • memory/3376-19-0x0000000005DF0000-0x0000000005E56000-memory.dmp

        Filesize

        408KB

      • memory/3376-94-0x0000000007D50000-0x0000000007D6A000-memory.dmp

        Filesize

        104KB

      • memory/3376-58-0x000000006F320000-0x000000006F36C000-memory.dmp

        Filesize

        304KB

      • memory/3376-89-0x0000000007C10000-0x0000000007C21000-memory.dmp

        Filesize

        68KB

      • memory/3376-93-0x0000000007C50000-0x0000000007C64000-memory.dmp

        Filesize

        80KB

      • memory/3376-95-0x0000000007D30000-0x0000000007D38000-memory.dmp

        Filesize

        32KB

      • memory/3376-18-0x0000000005600000-0x0000000005622000-memory.dmp

        Filesize

        136KB

      • memory/3376-36-0x00000000060B0000-0x0000000006404000-memory.dmp

        Filesize

        3.3MB

      • memory/3376-55-0x0000000006780000-0x00000000067CC000-memory.dmp

        Filesize

        304KB

      • memory/3376-101-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3376-44-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3376-43-0x00000000749F0000-0x00000000751A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3956-108-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/3956-107-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/3956-110-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4240-46-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-53-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-91-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-84-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-86-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-85-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-103-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-47-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-159-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-158-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-151-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-50-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-150-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-142-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-143-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-45-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-119-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4240-124-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-123-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4240-122-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4240-80-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-126-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-127-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-79-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-134-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4240-135-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4472-105-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4472-106-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4472-109-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4976-112-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4976-116-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4976-111-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB