Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 09:25

General

  • Target

    79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe

  • Size

    925KB

  • MD5

    0e9e305e1e69c435383eb73f66c63530

  • SHA1

    9d5eb75968bfe5a1e12af2d81f8b20322c77f2ec

  • SHA256

    79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb

  • SHA512

    1bdd88fab52efebbc81ce27b961f7a574ca6e4a9216570bf5193ff09c8f9f8771b93e0a4a312f61a208ecfec2f97b7027fa99dce35b5772d7d99a2a65ad5645e

  • SSDEEP

    24576:Ibo2IFemqKLdQ+tExSVoVKbcqmuDaomTzktr:Ic2tlKLzsAqAhtSgt

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Adobe.exe

  • copy_folder

    Adobe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Adobe-OTOIRK

  • 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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 7 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 5 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.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe
    "C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe
      "C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe"
      2⤵
        PID:2408
      • C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe
        "C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe"
        2⤵
          PID:4520
        • C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe
          "C:\Users\Admin\AppData\Local\Temp\79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb.exe"
          2⤵
          • Checks computer location settings
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4848
          • C:\ProgramData\Adobe\Adobe.exe
            "C:\ProgramData\Adobe\Adobe.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2352
            • C:\ProgramData\Adobe\Adobe.exe
              "C:\ProgramData\Adobe\Adobe.exe"
              4⤵
              • Executes dropped EXE
              PID:3568
            • C:\ProgramData\Adobe\Adobe.exe
              "C:\ProgramData\Adobe\Adobe.exe"
              4⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:2276
              • C:\ProgramData\Adobe\Adobe.exe
                C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\qasobek"
                5⤵
                • Executes dropped EXE
                PID:404
              • C:\ProgramData\Adobe\Adobe.exe
                C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\qasobek"
                5⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                PID:1136
              • C:\ProgramData\Adobe\Adobe.exe
                C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\scxgtxvdcx"
                5⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook accounts
                • System Location Discovery: System Language Discovery
                PID:2132
              • C:\ProgramData\Adobe\Adobe.exe
                C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\dxczupfwyfuye"
                5⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3040

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Adobe\Adobe.exe

        Filesize

        925KB

        MD5

        0e9e305e1e69c435383eb73f66c63530

        SHA1

        9d5eb75968bfe5a1e12af2d81f8b20322c77f2ec

        SHA256

        79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb

        SHA512

        1bdd88fab52efebbc81ce27b961f7a574ca6e4a9216570bf5193ff09c8f9f8771b93e0a4a312f61a208ecfec2f97b7027fa99dce35b5772d7d99a2a65ad5645e

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

        Filesize

        4KB

        MD5

        18db1829b27eaeed163c211f5d179d72

        SHA1

        4442332494cba1e012f8876ecac42126ba995bc6

        SHA256

        610c5ee3f0e63441521d26bc477c9618a4c5f86e93d31b31890680c69e3ecc3d

        SHA512

        123d68b2c84f7a52d15faa212c06f33b04a55585e2aeb16bb14df95b18c0bcf31933e5bf0c736c90bc054b9527fccb046540d3302a0f149ebeed7c6bcca0b986

      • memory/768-10-0x0000000009560000-0x00000000095FC000-memory.dmp

        Filesize

        624KB

      • memory/768-2-0x0000000005C60000-0x0000000006204000-memory.dmp

        Filesize

        5.6MB

      • memory/768-5-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

      • memory/768-4-0x0000000005900000-0x000000000590A000-memory.dmp

        Filesize

        40KB

      • memory/768-6-0x0000000005930000-0x0000000005940000-memory.dmp

        Filesize

        64KB

      • memory/768-7-0x000000007489E000-0x000000007489F000-memory.dmp

        Filesize

        4KB

      • memory/768-8-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

      • memory/768-9-0x0000000006F50000-0x0000000007010000-memory.dmp

        Filesize

        768KB

      • memory/768-0-0x000000007489E000-0x000000007489F000-memory.dmp

        Filesize

        4KB

      • memory/768-3-0x0000000005750000-0x00000000057E2000-memory.dmp

        Filesize

        584KB

      • memory/768-1-0x0000000000C80000-0x0000000000D6C000-memory.dmp

        Filesize

        944KB

      • memory/768-15-0x0000000074890000-0x0000000075040000-memory.dmp

        Filesize

        7.7MB

      • memory/1136-48-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/1136-53-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/1136-55-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2132-50-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2132-52-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2132-54-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2276-41-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-71-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-37-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-38-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-39-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-78-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-42-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-77-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-43-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-44-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-46-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-75-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-74-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-73-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-72-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-70-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2276-65-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2276-68-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2276-69-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2352-32-0x00000000738E0000-0x0000000074090000-memory.dmp

        Filesize

        7.7MB

      • memory/2352-40-0x00000000738E0000-0x0000000074090000-memory.dmp

        Filesize

        7.7MB

      • memory/2352-31-0x00000000738EE000-0x00000000738EF000-memory.dmp

        Filesize

        4KB

      • memory/2352-30-0x00000000738E0000-0x0000000074090000-memory.dmp

        Filesize

        7.7MB

      • memory/2352-29-0x00000000738EE000-0x00000000738EF000-memory.dmp

        Filesize

        4KB

      • memory/3040-58-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3040-56-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3040-59-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4848-28-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

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

        Filesize

        520KB

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

        Filesize

        520KB

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

        Filesize

        520KB

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

        Filesize

        520KB