Analysis

  • max time kernel
    168s
  • max time network
    183s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 03:20

General

  • Target

    f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04.exe

  • Size

    2.5MB

  • MD5

    411c2e3611e8ee701918cfe17399da79

  • SHA1

    a01d2ceb1b9d0e002eb67a00fbac9238285dce85

  • SHA256

    f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04

  • SHA512

    c68a62e0342cdaaa23a8ad385551dff3d7f60e34c28c63797ef8d5969e714df6b0f7fa66a8904aaf65c034c26860f21453434e8678a48d149b2137054ee57b50

  • SSDEEP

    49152:YBO8QRm2I9bC9hY8PU5sevK7F6wd0HL5xRpMrpaKE9eFodKe/HT0:Y88QRmVluhnPyhyx30HlUpaKpodtHT0

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

gamemodz.duckdns.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    sysupdate.exe

  • copy_folder

    sysupdate

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-FEY33U

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

xworm

Version

3.1

C2

gamemodz.duckdns.org:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Detect ZGRat V1 34 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 7 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04.exe
    "C:\Users\Admin\AppData\Local\Temp\f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\sysupdate.exe
      "C:\Users\Admin\AppData\Local\Temp\sysupdate.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\ProgramData\sysupdate\sysupdate.exe
        "C:\ProgramData\sysupdate\sysupdate.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2444
        • \??\c:\program files (x86)\internet explorer\iexplore.exe
          "c:\program files (x86)\internet explorer\iexplore.exe"
          4⤵
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2656
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe
            5⤵
              PID:2780
      • C:\Users\Admin\AppData\Local\Temp\f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04.exe
        C:\Users\Admin\AppData\Local\Temp\f0ebd23eac064a10da288dbf3b9db45bdf5e107c970e57f7974710cad01aed04.exe
        2⤵
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:2352

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\sysupdate.exe

      Filesize

      483KB

      MD5

      bdfa7710dfc213d8babcd7348440deeb

      SHA1

      ecd7d6ad5a3e0cc8c24ce1f12a40b0c86a769f98

      SHA256

      79ec51c588fccbe876f58de8a0256e27de65aa14f245615c42bd92cc640063fe

      SHA512

      663eb74fba1e38d3f930c0d73787309f86b85852cbccae1b44d3056a6073a95494c1526dc98d132f84a71e379babc5bd6819e76643f82fcd5591e264825fb2ee

    • memory/2352-4847-0x0000000004B00000-0x0000000004B40000-memory.dmp

      Filesize

      256KB

    • memory/2352-4844-0x0000000074370000-0x0000000074A5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2352-4842-0x0000000004B00000-0x0000000004B40000-memory.dmp

      Filesize

      256KB

    • memory/2352-4809-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2352-4808-0x0000000074370000-0x0000000074A5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2932-44-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-50-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-12-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-14-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-16-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-18-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-20-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-22-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-24-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-26-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-28-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-30-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-32-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-34-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-36-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-38-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-40-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-42-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-0-0x0000000074B60000-0x000000007524E000-memory.dmp

      Filesize

      6.9MB

    • memory/2932-46-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-48-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-10-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-52-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-54-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-56-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-58-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-60-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-62-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-64-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-66-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-3615-0x0000000074B60000-0x000000007524E000-memory.dmp

      Filesize

      6.9MB

    • memory/2932-4780-0x0000000002940000-0x0000000002980000-memory.dmp

      Filesize

      256KB

    • memory/2932-4781-0x0000000000320000-0x0000000000321000-memory.dmp

      Filesize

      4KB

    • memory/2932-4782-0x0000000005470000-0x00000000054E8000-memory.dmp

      Filesize

      480KB

    • memory/2932-4783-0x00000000008D0000-0x000000000091C000-memory.dmp

      Filesize

      304KB

    • memory/2932-8-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-4802-0x0000000074B60000-0x000000007524E000-memory.dmp

      Filesize

      6.9MB

    • memory/2932-6-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-4-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-3-0x0000000004CE0000-0x0000000004F0A000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-2-0x0000000004CE0000-0x0000000004F10000-memory.dmp

      Filesize

      2.2MB

    • memory/2932-1-0x0000000000920000-0x0000000000B96000-memory.dmp

      Filesize

      2.5MB