Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-08-2024 15:36

General

  • Target

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

  • Size

    928KB

  • MD5

    04d4d4d83e1601d220f83f09ae16cd79

  • SHA1

    4f0a7d8060399a7ae5029690bdee2bf3b2e3e395

  • SHA256

    86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8

  • SHA512

    87747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c

  • SSDEEP

    24576:bhdtlx9EP2aKUQ6/FfCH1bGl4rg5YWNexNBpqod:bhdrY+aPQiFgDWcxNzqi

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

C2

sungito2.ddns.net:6509

154.216.19.222:5532

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

    remcos

  • mouse_option

    false

  • mutex

    Rmc-LXAZN2

  • 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 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 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 6 IoCs

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

  • 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.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:3860
    • 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\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3884
    • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
      "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
      2⤵
        PID:1140
      • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
        "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4848
        • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
          C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\myhjdczpcibw"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3200
        • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
          C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\osmueukqqqtaqnlv"
          3⤵
            PID:3624
          • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
            C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\osmueukqqqtaqnlv"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:2128
          • C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
            C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\zvrmfnvkeylfbtzzkij"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2108

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        9910a953d9216bcff25bb92782a8e25f

        SHA1

        91af368fd2a075e84a172d71ea131644392af9a7

        SHA256

        060dc123b52fa30f0ec7118a1e0c715a0e5a49d4fa5033e471385e0dc952e148

        SHA512

        0b7ed2a6322ce55d9a4c36f6d789847611c7d77025636dca263fb4fd0fe3e04057d15b9ddffec771d23615dd2d29c3d4bf8c6079d822bc95a2f736c5b92f12d5

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tjdggmam.xo5.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        c7ac5a21cac5bd5580a6e28112212613

        SHA1

        0a256177c387053fec680e599bcb63729a16c161

        SHA256

        89e0e7dc8ad418f8613610b71d0c140247e26a5f9a453ee255b1467fb80f15ff

        SHA512

        753675a75b643132e50175d67589a3952cb5154a7e51c11883b2e28bf4fe406afbaed88e61575cc114156e41ed5c587b0f76845e6d20ddf922e775bfff3f0b43

      • memory/2108-58-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2108-57-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2108-56-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2128-50-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2128-52-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2128-49-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/3200-47-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3200-48-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3200-51-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3860-6-0x0000000007F90000-0x0000000007FA8000-memory.dmp

        Filesize

        96KB

      • memory/3860-0-0x000000007491E000-0x000000007491F000-memory.dmp

        Filesize

        4KB

      • memory/3860-10-0x00000000068D0000-0x000000000696C000-memory.dmp

        Filesize

        624KB

      • memory/3860-9-0x0000000006610000-0x00000000066D0000-memory.dmp

        Filesize

        768KB

      • memory/3860-22-0x0000000074910000-0x00000000750C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3860-8-0x0000000074910000-0x00000000750C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3860-7-0x000000007491E000-0x000000007491F000-memory.dmp

        Filesize

        4KB

      • memory/3860-5-0x0000000074910000-0x00000000750C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3860-4-0x00000000053B0000-0x00000000053BA000-memory.dmp

        Filesize

        40KB

      • memory/3860-3-0x0000000005420000-0x00000000054B2000-memory.dmp

        Filesize

        584KB

      • memory/3860-2-0x0000000005930000-0x0000000005ED4000-memory.dmp

        Filesize

        5.6MB

      • memory/3860-1-0x00000000008C0000-0x00000000009AA000-memory.dmp

        Filesize

        936KB

      • memory/3884-81-0x0000000007760000-0x000000000777A000-memory.dmp

        Filesize

        104KB

      • memory/3884-88-0x00000000079A0000-0x00000000079B4000-memory.dmp

        Filesize

        80KB

      • memory/3884-27-0x0000000005B60000-0x0000000005BC6000-memory.dmp

        Filesize

        408KB

      • memory/3884-38-0x0000000005DC0000-0x0000000006114000-memory.dmp

        Filesize

        3.3MB

      • memory/3884-93-0x0000000074910000-0x00000000750C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3884-90-0x0000000007A80000-0x0000000007A88000-memory.dmp

        Filesize

        32KB

      • memory/3884-89-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

        Filesize

        104KB

      • memory/3884-28-0x0000000005CD0000-0x0000000005D36000-memory.dmp

        Filesize

        408KB

      • memory/3884-87-0x0000000007990000-0x000000000799E000-memory.dmp

        Filesize

        56KB

      • memory/3884-45-0x0000000006420000-0x000000000643E000-memory.dmp

        Filesize

        120KB

      • memory/3884-46-0x00000000064B0000-0x00000000064FC000-memory.dmp

        Filesize

        304KB

      • memory/3884-26-0x0000000005460000-0x0000000005482000-memory.dmp

        Filesize

        136KB

      • memory/3884-20-0x000000007491E000-0x000000007491F000-memory.dmp

        Filesize

        4KB

      • memory/3884-84-0x0000000007960000-0x0000000007971000-memory.dmp

        Filesize

        68KB

      • memory/3884-25-0x0000000005530000-0x0000000005B58000-memory.dmp

        Filesize

        6.2MB

      • memory/3884-83-0x00000000079E0000-0x0000000007A76000-memory.dmp

        Filesize

        600KB

      • memory/3884-82-0x00000000077D0000-0x00000000077DA000-memory.dmp

        Filesize

        40KB

      • memory/3884-21-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

        Filesize

        216KB

      • memory/3884-23-0x0000000074910000-0x00000000750C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3884-80-0x0000000007DA0000-0x000000000841A000-memory.dmp

        Filesize

        6.5MB

      • memory/3884-60-0x0000000007410000-0x0000000007442000-memory.dmp

        Filesize

        200KB

      • memory/3884-61-0x00000000711F0000-0x000000007123C000-memory.dmp

        Filesize

        304KB

      • memory/3884-71-0x0000000006A00000-0x0000000006A1E000-memory.dmp

        Filesize

        120KB

      • memory/3884-72-0x0000000007650000-0x00000000076F3000-memory.dmp

        Filesize

        652KB

      • memory/4848-44-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-126-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-12-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-74-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4848-79-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-14-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-19-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-16-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-85-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-86-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-77-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4848-78-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4848-109-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-39-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-40-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-95-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-101-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-102-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-42-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-110-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-117-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-118-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-125-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4848-41-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB