Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2024 02:18

General

  • Target

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe

  • Size

    1004KB

  • MD5

    b55d24e6b8e053c08bdd57534af83734

  • SHA1

    13473f286428aa39869a9580c7f3fbb0fde8d9ed

  • SHA256

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b

  • SHA512

    1957bdfa97e1bd9309040f64d22c7348df0ca692f79a3136cb0203e19e5e4a67c5d8588e758f3e43a0652158a22042bd694635f0baaaa31c8d1c826432da8f22

  • SSDEEP

    24576:99CJVyR2dzExjVlDjcFXcq5meyUBNrllwKkwa9:9UO2dCzmeeT/sS

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

87.120.120.25:5940

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-13MD3U

  • 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 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 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 7 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 8 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
    "C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:940
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QglnNavO.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QglnNavO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA6D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
      "C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
        C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe /stext "C:\Users\Admin\AppData\Local\Temp\fnffrsyixpoupxbbw"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4348
      • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
        C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe /stext "C:\Users\Admin\AppData\Local\Temp\ipkyskiclxhzrlpfokvp"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1084
      • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
        C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe /stext "C:\Users\Admin\AppData\Local\Temp\sjxjtdtezfzebsljxuijeez"
        3⤵
          PID:4124
        • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
          C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe /stext "C:\Users\Admin\AppData\Local\Temp\sjxjtdtezfzebsljxuijeez"
          3⤵
            PID:4400
          • C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe
            C:\Users\Admin\AppData\Local\Temp\27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe /stext "C:\Users\Admin\AppData\Local\Temp\sjxjtdtezfzebsljxuijeez"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4728

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        d3f5693d83bdb218964f9aab4bc44dd0

        SHA1

        787df4f14f44dbc103810ffedf604e06d803522f

        SHA256

        df2ca747ede4de1ab0f7dd81a6d91849a5a22a03e93ca120888b10ca705abecf

        SHA512

        563d640f415951624254b97f2588a320e3a3dfba502df9c6510495f29ea5f696c5946fd4824704679aec4790f93e8cd2d196f9cd283bb37638f248826a71e2ad

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ryyo3b1y.ttd.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        c3c5f2de99b7486f697634681e21bab0

        SHA1

        00f90d495c0b2b63fde6532e033fdd2ade25633d

        SHA256

        76296dc29f718988107d35d0e0b835c2bf3fc7405e79e5121aa4738f82b51582

        SHA512

        7c60ffdc093de30e793d20768877f2f586bee3e948767871f9a1139252d5d2f593ba6f88ce0ed5f72c79faddb26186792df0581e4b6c84d405c44d9d12f951b8

      • C:\Users\Admin\AppData\Local\Temp\tmpFA6D.tmp

        Filesize

        1KB

        MD5

        dd35403f18b17f9760cdfec7a578fc6c

        SHA1

        4ded9cf2169a04139f78ff5e8bbb5ed66c81c41e

        SHA256

        be994e5dea4e52a9ea9cc4ca3edce26564b737ec075edec111d1e600deb75698

        SHA512

        1076218f437ccd811146cf9a750a7d89b3b69d3209723e6a2298560adb9449bcde8e1dfbf44b310a66845d28748f0713295388fe0cb8e7e7772a94282aaf43a7

      • memory/940-8-0x00000000746CE000-0x00000000746CF000-memory.dmp

        Filesize

        4KB

      • memory/940-4-0x00000000059E0000-0x0000000005A7C000-memory.dmp

        Filesize

        624KB

      • memory/940-6-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/940-7-0x0000000005C70000-0x0000000005C82000-memory.dmp

        Filesize

        72KB

      • memory/940-44-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/940-9-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/940-10-0x0000000008A70000-0x0000000008B32000-memory.dmp

        Filesize

        776KB

      • memory/940-1-0x0000000000F10000-0x0000000001012000-memory.dmp

        Filesize

        1.0MB

      • memory/940-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

        Filesize

        5.6MB

      • memory/940-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

        Filesize

        4KB

      • memory/940-5-0x00000000058C0000-0x00000000058CA000-memory.dmp

        Filesize

        40KB

      • memory/940-3-0x0000000005940000-0x00000000059D2000-memory.dmp

        Filesize

        584KB

      • memory/1084-56-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1084-55-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1084-54-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2996-33-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-47-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-102-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-71-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2996-103-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-43-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-42-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-39-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-38-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-110-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-29-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-46-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-45-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-30-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-48-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-50-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-100-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-111-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-118-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-119-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-126-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-66-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2996-127-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2996-70-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2996-72-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4164-85-0x0000000007A60000-0x0000000007B03000-memory.dmp

        Filesize

        652KB

      • memory/4164-90-0x0000000007D70000-0x0000000007D81000-memory.dmp

        Filesize

        68KB

      • memory/4164-15-0x0000000005280000-0x00000000052B6000-memory.dmp

        Filesize

        216KB

      • memory/4164-16-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/4164-17-0x00000000059B0000-0x0000000005FD8000-memory.dmp

        Filesize

        6.2MB

      • memory/4164-60-0x0000000006850000-0x000000000686E000-memory.dmp

        Filesize

        120KB

      • memory/4164-18-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/4164-73-0x0000000007820000-0x0000000007852000-memory.dmp

        Filesize

        200KB

      • memory/4164-74-0x0000000070A20000-0x0000000070A6C000-memory.dmp

        Filesize

        304KB

      • memory/4164-84-0x0000000006E10000-0x0000000006E2E000-memory.dmp

        Filesize

        120KB

      • memory/4164-20-0x0000000005880000-0x00000000058A2000-memory.dmp

        Filesize

        136KB

      • memory/4164-86-0x00000000081B0000-0x000000000882A000-memory.dmp

        Filesize

        6.5MB

      • memory/4164-87-0x0000000007B70000-0x0000000007B8A000-memory.dmp

        Filesize

        104KB

      • memory/4164-88-0x0000000007BE0000-0x0000000007BEA000-memory.dmp

        Filesize

        40KB

      • memory/4164-89-0x0000000007DF0000-0x0000000007E86000-memory.dmp

        Filesize

        600KB

      • memory/4164-61-0x0000000006910000-0x000000000695C000-memory.dmp

        Filesize

        304KB

      • memory/4164-92-0x0000000007DA0000-0x0000000007DAE000-memory.dmp

        Filesize

        56KB

      • memory/4164-93-0x0000000007DB0000-0x0000000007DC4000-memory.dmp

        Filesize

        80KB

      • memory/4164-94-0x0000000007EB0000-0x0000000007ECA000-memory.dmp

        Filesize

        104KB

      • memory/4164-95-0x0000000007E90000-0x0000000007E98000-memory.dmp

        Filesize

        32KB

      • memory/4164-98-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/4164-22-0x0000000005FE0000-0x0000000006046000-memory.dmp

        Filesize

        408KB

      • memory/4164-31-0x0000000006210000-0x0000000006564000-memory.dmp

        Filesize

        3.3MB

      • memory/4164-23-0x00000000746C0000-0x0000000074E70000-memory.dmp

        Filesize

        7.7MB

      • memory/4164-21-0x0000000005920000-0x0000000005986000-memory.dmp

        Filesize

        408KB

      • memory/4348-51-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4348-52-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4348-53-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4728-64-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4728-63-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4728-62-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB