Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/10/2026, 00:24

General

  • Target
    quickb.msi
  • Size 3.5MB
  • Sample261013-ap4gnsvsbx
  • SHA256 5a9501fc85fb65db7f2afc288d3e1853c6a098bc7149f51fc01bb3b65ddadee6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 12 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

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

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\quickb.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:6036
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3324
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5168
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3440
    • C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\uclient.exe
      "C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\uclient.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      PID:4904

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5991f6.rbs

          • Path C:\Config.Msi\e5991f6.rbs
          • Size 11KB
          • SHA256 5139bda12df8e7071d3dd7bcbd686b4228066bde154f3a0154e87ff437ee7c69
          • MD5 SHA1 SHA512 SSDEEP TLSH

          HTCTL32.DLL

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\HTCTL32.DLL
          • Size 316KB
          • SHA256 6562585009f15155eea9a489e474cebc4dd2a01a26d846fdd1b93fdc24b0c269
          • MD5 SHA1 SHA512 SSDEEP TLSH

          NSM.LIC

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\NSM.LIC
          • Size 262B
          • SHA256 fcc6afd664a8045bd61c398be3c37a97536a199a48d277e11977f93868ae1acc
          • MD5 SHA1 SHA512 TLSH

          PCICAPI.dll

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\PCICAPI.dll
          • Size 106KB
          • SHA256 2dfdc169dfc27462adc98dde39306de8d0526dcf4577a1a486c2eef447300689
          • MD5 SHA1 SHA512 SSDEEP TLSH

          PCICL32.dll

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\PCICL32.dll
          • Size 3.3MB
          • SHA256 b6d4ad0231941e0637485ac5833e0fdc75db35289b54e70f3858b70d36d04c80
          • MD5 SHA1 SHA512 SSDEEP TLSH

          client32.ini

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\client32.ini
          • Size 730B
          • SHA256 edef082fa6f5cdf747b94fe8357545947d428e94e04054eed6f1e87516e97bcd
          • MD5 SHA1 SHA512 TLSH

          msvcr100.dll

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\msvcr100.dll
          • Size 755KB
          • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pcichek.dll

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\pcichek.dll
          • Size 14KB
          • SHA256 0cff893b1e7716d09fb74b7a0313b78a09f3f48c586d31fc5f830bd72ce8331f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          uclient.exe

          • Path C:\Users\Admin\AppData\Local\NetSupport\NetSupport Manager\uclient.exe
          • Size 33KB
          • SHA256 275e5b085534f64313b50cbdcb08ecd59c57d21c96bb937f140ee92a3d27f792
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5991f7.msi

          • Path C:\Windows\Installer\e5991f7.msi
          • Size 3.5MB
          • SHA256 5a9501fc85fb65db7f2afc288d3e1853c6a098bc7149f51fc01bb3b65ddadee6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 5b12dbc656074aa4cb7fb886a8b8cff3d167bd5be53a13fb24739f04ff3ac5b0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {0a24e4cb-9e48-42b4-895e-95fb8ee3e8bc}_OnDiskSnapshotProp

          • Path \??\Volume{f0fdc120-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{0a24e4cb-9e48-42b4-895e-95fb8ee3e8bc}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 4a8ef5d10a9b693eeb0cb1417225ccbb0f1513a4a6a52805391a45e5781b2d45
          • MD5 SHA1 SHA512 SSDEEP TLSH