Analysis

  • max time kernel
    300s
  • max time network
    303s
  • platform
    windows10-1703_x64
  • resource
    win10-20231215-en
  • resource tags

    arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-02-2024 20:57

General

  • Target

    NvSmartMax.rar

  • Size

    146KB

  • MD5

    c56cac95726fd10b5a85be1c87336354

  • SHA1

    b29b5a35c3ecd559047e8477e949ac72e9bdc52d

  • SHA256

    e49e2826c4d9fae960ca6baecd6754400e5da74446c5b511beb15831b42f2b1d

  • SHA512

    d6dd8283320330199e9235e4e8bb2ed7995f5c6cb51a08e2118502660bc8ce29d7490198e1dcba9641b199b8d7f80c1708948230b69392cfd8391c5a7d505ab5

  • SSDEEP

    3072:MljIdulYQyNl7bAT+JbjClf00YM8SzR1hv0iuzFWC9FnbfztQf:Mj+uqXAT6jClkao5WCrbCf

Score
10/10

Malware Config

Signatures

  • Detects PlugX payload 23 IoCs
  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 20 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\NvSmartMax.rar
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5092
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\NvSmartMax.rar"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3824
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4392
    • C:\Program Files\7-Zip\7zG.exe
      "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\" -an -ai#7zMap22787:100:7zEvent812
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3812
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Users\Admin\AppData\Local\Temp\Nv.exe
        nv
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4516
    • C:\ProgramData\SxS\Nv.exe
      "C:\ProgramData\SxS\Nv.exe" 100 4516
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:5084
    • C:\ProgramData\SxS\Nv.exe
      "C:\ProgramData\SxS\Nv.exe" 200 0
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3564
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe 201 0
        2⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\system32\msiexec.exe 209 4960
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:4976

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Replay Monitor

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    Downloads

    • C:\ProgramData\SxS\bug.log
      Filesize

      656B

      MD5

      1b0a71ad841631d5ee160f1d786c03a8

      SHA1

      94a8c754f5fc57c5ecdd7c1213dbcccb8d00bc84

      SHA256

      14983e7d3bb47bc69525630eb9b88a05de1566a5088d8f901427394eac64579c

      SHA512

      41c02f2d60536f5145fded609ea977925f9cea1a55d6469e3d22c31a5ef93fcd4dc18a8edd1a3dccb84f02f23a868038058e8462fc49b353f2ea96a1d9ed9278

    • C:\ProgramData\SxS\bug.log
      Filesize

      818B

      MD5

      4cf794ec5abcb3e69e4a338a0d3d1ebb

      SHA1

      6f52c69df3405b6c9e9e8fe9e4efa5b194880a64

      SHA256

      249f9f61f14f594a2dac007e190d61906fa1c7b397819e368729aae53a6aaa3e

      SHA512

      3b0ff750819e33509687f9eec3f1693f8c2fd9473bb8396181e74c45aa79656371b2dc828cedb2ff2b1c8b8bc5d00d0610fe9969f35060f88d27ebb443cd9f4c

    • C:\Users\Admin\AppData\Local\Temp\Nv.exe
      Filesize

      46KB

      MD5

      09b8b54f78a10c435cd319070aa13c28

      SHA1

      6474d0369f97e72e01e4971128d1062f5c2b3656

      SHA256

      523d28df917f9d265cd2c0d38df26277bc56a535145100ed82e6f5fdeaae7256

      SHA512

      c1f2f5c4aa5eb55d255e22db032da954a38a0204fb4d9bc76042f140f1b1e171944aa09b0eb11159323a8b9f33974c73fd32a4f76d976aaa8a16cc9c60a34ca7

    • C:\Users\Admin\AppData\Local\Temp\Nv.mp3
      Filesize

      120KB

      MD5

      5ef7c3bcbc11cd02c95e509b226eebe9

      SHA1

      794a90212d226628c8ce4441c3418c1ecca0e3b8

      SHA256

      3d64e638f961b922398e2efaf75504da007e41ea979f213f8eb4f83e00efeebb

      SHA512

      c86f464f736125d8fb499efe2555cae1aea5d67fbf15be816883e058ad9107eb399d3ade6c5afe811a2eb59ebdc1d52c992124359fa26085a650eb940fe2eae4

    • \Users\Admin\AppData\Local\Temp\NvSmartMax.dll
      Filesize

      20KB

      MD5

      0b21678ed8e2b117344cfceba8f097dd

      SHA1

      db53bb022cb6de016713f1570f2ae501f20f9c76

      SHA256

      eaaa7899b37a3b04dcd02ad6d51e83e035be535f129773621ef0f399a2a98ee3

      SHA512

      182268649b360f44f021570ddc9290f5051a8be556ffd66355bc325027ba48c5fe824e1bea925411bdaef4c17e0f3d81a1d3c710b59c4462540d567da625a41a

    • memory/3564-41-0x0000000000E40000-0x0000000000E70000-memory.dmp
      Filesize

      192KB

    • memory/3564-46-0x0000000000E40000-0x0000000000E70000-memory.dmp
      Filesize

      192KB

    • memory/4516-12-0x0000000002000000-0x0000000002100000-memory.dmp
      Filesize

      1024KB

    • memory/4516-13-0x0000000002150000-0x0000000002180000-memory.dmp
      Filesize

      192KB

    • memory/4516-28-0x0000000002150000-0x0000000002180000-memory.dmp
      Filesize

      192KB

    • memory/4960-63-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-44-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-72-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-70-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-67-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-74-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-61-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-62-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-60-0x00000000000B0000-0x00000000000B1000-memory.dmp
      Filesize

      4KB

    • memory/4960-83-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-45-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-68-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-43-0x0000000000850000-0x0000000000880000-memory.dmp
      Filesize

      192KB

    • memory/4960-42-0x00000000001A0000-0x00000000001A1000-memory.dmp
      Filesize

      4KB

    • memory/4976-79-0x0000000002C60000-0x0000000002C61000-memory.dmp
      Filesize

      4KB

    • memory/4976-78-0x00000000032A0000-0x00000000032D0000-memory.dmp
      Filesize

      192KB

    • memory/4976-82-0x00000000032A0000-0x00000000032D0000-memory.dmp
      Filesize

      192KB

    • memory/4976-80-0x00000000032A0000-0x00000000032D0000-memory.dmp
      Filesize

      192KB

    • memory/4976-84-0x00000000032A0000-0x00000000032D0000-memory.dmp
      Filesize

      192KB

    • memory/5084-35-0x00000000005B0000-0x00000000005E0000-memory.dmp
      Filesize

      192KB

    • memory/5084-75-0x00000000005B0000-0x00000000005E0000-memory.dmp
      Filesize

      192KB

    • memory/5084-36-0x00000000005B0000-0x00000000005E0000-memory.dmp
      Filesize

      192KB