Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 12:15

General

  • Target
    support.client.exe
  • Size 305KB
  • Sample260601-pfb4dsa18y
  • SHA256 5f178a9596d1fc74ebcdd3594b320cd77839a56239947ef682945538491bd680
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 7 IoCs
  • Manipulates Digital Signatures 1 TTPs 4 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • 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.

  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\support.client.exe
    "C:\Users\Admin\AppData\Local\Temp\support.client.exe"
    1⤵
    • Manipulates Digital Signatures
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe"
      2⤵
      • Downloads MZ/PE file
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      PID:2668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        scre...exe_25b0fbb6ef7eb094_0019.0002_none_867d819169b5504f.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre...exe_25b0fbb6ef7eb094_0019.0002_none_867d819169b5504f.cdf-ms
        • Size 24KB
        • SHA256 11156cd70c70bbf855c32b65bbbe07569e944fdd5aee804e1cbc4f38d0609b94
        • MD5 SHA1 SHA512 SSDEEP TLSH

        scre..core_4b14c015c87c1ad8_0019.0002_none_41e6e31d258051c3.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..core_4b14c015c87c1ad8_0019.0002_none_41e6e31d258051c3.cdf-ms
        • Size 3KB
        • SHA256 49224339937b52ccfd2bfa9bb2cdcdf6688cae637abe118337fd6e0119954302
        • MD5 SHA1 SHA512 TLSH

        scre..dows_4b14c015c87c1ad8_0019.0002_none_465ebafe61ce64f3.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..dows_4b14c015c87c1ad8_0019.0002_none_465ebafe61ce64f3.cdf-ms
        • Size 5KB
        • SHA256 0e4e1a85a2246a34bb39e9215b29b64badc7f10b48cb694628029edb6a0eb76a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        scre..ient_4b14c015c87c1ad8_0019.0002_none_a32dbc410e6434d0.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..ient_4b14c015c87c1ad8_0019.0002_none_a32dbc410e6434d0.cdf-ms
        • Size 6KB
        • SHA256 b380ff8f48ff94d527a4322bc49c9e62ef54271557cbaccc2dc35cb642f3a1c0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        scre..ient_4b14c015c87c1ad8_0019.0002_none_d7fc40ef34cfa7c7.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..ient_4b14c015c87c1ad8_0019.0002_none_d7fc40ef34cfa7c7.cdf-ms
        • Size 2KB
        • SHA256 11c1831d2522ed765980a73143aab3c5f486fcd406e2887372079b63c2debbbc
        • MD5 SHA1 SHA512 TLSH

        scre..tion_25b0fbb6ef7eb094_0019.0002_none_2771bb27d0341a32.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..tion_25b0fbb6ef7eb094_0019.0002_none_2771bb27d0341a32.cdf-ms
        • Size 14KB
        • SHA256 74af472fd5005c0a61f841793d1fc9f9f0f494c113f467b6de909b49f955a870
        • MD5 SHA1 SHA512 SSDEEP TLSH

        scre..vice_4b14c015c87c1ad8_0019.0002_none_f33a7b65bb3fb52e.cdf-ms

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\manifests\scre..vice_4b14c015c87c1ad8_0019.0002_none_f33a7b65bb3fb52e.cdf-ms
        • Size 4KB
        • SHA256 914e467b7d382cde8a9b0876d68d4a62d57094976233cb6ff8bfde98680fe149
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.exe

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\scre...exe_25b0fbb6ef7eb094_0019.0002_none_867d819169b5504f\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe:Zone.Identifier

        • Path C:\Users\Admin\AppData\Local\Apps\2.0\K71Y37AT.15C\P65WKXJ6.JJ3\scre..tion_25b0fbb6ef7eb094_0019.0002_6a2c22ba01b864b0\ScreenConnect.WindowsClient.exe:Zone.Identifier
        • Size 26B
        • SHA256 eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913
        • MD5 SHA1 SHA512

        258D3JYG.A8J.application

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\13RGK2QC.A1K\258D3JYG.A8J.application
        • Size 231KB
        • SHA256 06f8cf19f4c8b8072c9917222b9cc5191fd5756c8a0b07574527fe081ee33c1d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll.genman

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Client.dll.genman
        • Size 1KB
        • SHA256 948596c07ffcd2ad7c1463894ac108ee05507def70f8a4a97d75a7081266b512
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.ClientService.dll

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.ClientService.dll
        • Size 66KB
        • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.dll.genman

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.ClientService.dll.genman
        • Size 1KB
        • SHA256 7ba2e686afa757becaec5216ddbc0be75d7d30f9af8233e9160d200efec8aa0f
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.Core.dll

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Core.dll
        • Size 538KB
        • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll.genman

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Core.dll.genman
        • Size 1KB
        • SHA256 1008e0a6ce99adf165f8e173dcd4bb5e0761673aa9c3150f5e010f03d0f6434b
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.Windows.dll

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll.genman

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.Windows.dll.genman
        • Size 1KB
        • SHA256 74bc77d4a907113ee17339077cf42d4919a3d02987325a5fd5608a43f65e60c2
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsBackstageShell.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsBackstageShell.exe
        • Size 59KB
        • SHA256 1404090db3128de503ba4d991a960c7c1bc3b910a62d06ecf7e7081a2fcf11b9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsClient.exe
        • Size 593KB
        • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe.config

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsClient.exe.genman

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsClient.exe.genman
        • Size 2KB
        • SHA256 cfe9e06a7fc7a776c704f992b1b80c2938133a4b8c1b53bcabe57cade90d44b9
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsClient.exe.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsClient.exe.manifest
        • Size 17KB
        • SHA256 d44b7bda547bbbeab6060edd2207e97dbc43c28aa08522b2108866c1ac023dbd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsFileManager.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Deployment\YKMQ3379.VV6\JRE9Q109.TLX\ScreenConnect.WindowsFileManager.exe
        • Size 79KB
        • SHA256 13f8cfe4648b807a0cbddd653c75254b60d1951e11e715f4e5a1a2c9ab29360b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2668-0-0x0000018AD97E0000-0x0000018AD97E8000-memory.dmp

        memory/2668-15-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp

        memory/2668-48-0x0000018AF96B0000-0x0000018AF96E6000-memory.dmp

        memory/2668-42-0x0000018AF9880000-0x0000018AF990C000-memory.dmp

        memory/2668-60-0x0000018AF9B50000-0x0000018AF9CFC000-memory.dmp

        memory/2668-36-0x0000018AF9890000-0x0000018AF9928000-memory.dmp

        memory/2668-26-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp

        memory/2668-54-0x0000018AF61B0000-0x0000018AF61C8000-memory.dmp

        memory/2668-14-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp

        memory/2668-6-0x0000018AF91B0000-0x0000018AF9200000-memory.dmp

        memory/2668-3-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp

        memory/2668-2-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp

        memory/2668-1-0x0000018AF3DD0000-0x0000018AF3F58000-memory.dmp

        memory/2668-337-0x0000018AF5E30000-0x0000018AF5E40000-memory.dmp