Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11-09-2024 08:01

General

  • Target

    97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe

  • Size

    1000KB

  • MD5

    e40b8b94d50a94e1a977b766526740cd

  • SHA1

    ab8b2ed6e3c074595a4a78a29eb81507ab86ca78

  • SHA256

    97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e

  • SHA512

    8da6ab901390460882456e3f05df1026a8797afe084f52b43dcfc7509d8d1840e5b95cb9b0f52b2ad87a95f8a10537083403ee3dc7e3d6e5379f2804e79284f7

  • SSDEEP

    24576:W/Jdk1BuaI9SJ3vfWj2oTDp53PbY+gO38vozGSkmoZGfXGS:Sdk3wG3+TDp53E/Ocoyzmo8+S

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.67.162.213:2435

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-72ZA9Y

  • 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 6 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
    "C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
      "C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe"
      2⤵
        PID:2364
      • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
        "C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe"
        2⤵
          PID:2788
        • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
          "C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2840
          • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
            C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe /stext "C:\Users\Admin\AppData\Local\Temp\ficaqqhjwasgagpgsfjvyhyjjggwyr"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:2620
          • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
            C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe /stext "C:\Users\Admin\AppData\Local\Temp\ikikrislkiklcmlsjqdxjusasmyxzczhc"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:2676
          • C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe
            C:\Users\Admin\AppData\Local\Temp\97b88b4e7564ac9d9ec3de83fe3af3de499842cb6ccc80a30273b75e0d32e73e.exe /stext "C:\Users\Admin\AppData\Local\Temp\sfndr"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2648

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • memory/1244-4-0x000000007466E000-0x000000007466F000-memory.dmp

        Filesize

        4KB

      • memory/1244-5-0x0000000074660000-0x0000000074D4E000-memory.dmp

        Filesize

        6.9MB

      • memory/1244-3-0x0000000001E20000-0x0000000001E30000-memory.dmp

        Filesize

        64KB

      • memory/1244-26-0x0000000074660000-0x0000000074D4E000-memory.dmp

        Filesize

        6.9MB

      • memory/1244-0-0x000000007466E000-0x000000007466F000-memory.dmp

        Filesize

        4KB

      • memory/1244-6-0x00000000061F0000-0x00000000062B0000-memory.dmp

        Filesize

        768KB

      • memory/1244-2-0x0000000074660000-0x0000000074D4E000-memory.dmp

        Filesize

        6.9MB

      • memory/1244-1-0x00000000000D0000-0x00000000001CE000-memory.dmp

        Filesize

        1016KB

      • memory/2620-39-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2620-37-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2620-43-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2620-50-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2620-58-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2648-49-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2648-48-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2648-47-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2676-53-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2676-45-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2676-44-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2676-51-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2676-65-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2840-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2840-29-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-30-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-31-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-33-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-34-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-28-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-52-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-22-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-25-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-20-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-14-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-16-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-17-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-27-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-9-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-60-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2840-64-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2840-63-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2840-7-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-66-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-67-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-68-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-69-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-70-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-71-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-72-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-73-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2840-74-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB