Analysis

  • user interaction
    yes
  • max time kernel
    748s
  • max time network
    750s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 12:24

General

  • Target
    Built_Stub.exe
  • Size 2.0MB
  • Sample260703-plcbcag17z
  • SHA256 b76c9825ac1788940f4998fb954101325b7804924a5f3cb2ce7d1e665be4457d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10

Malware Config

Signatures

  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • 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 processor information in registry 2 TTPs 4 IoCs

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

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Built_Stub.exe
    "C:\Users\Admin\AppData\Local\Temp\Built_Stub.exe"
    1⤵
    • Checks processor information in registry
    PID:772
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
    1⤵
      PID:2616
    • C:\Windows\system32\CredentialEnrollmentManager.exe
      C:\Windows\system32\CredentialEnrollmentManager.exe
      1⤵
        PID:6368
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k WbioSvcGroup -s WbioSrvc
        1⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:5076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
        1⤵
          PID:1180
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
          1⤵
          • Modifies data under HKEY_USERS
          PID:7068
        • C:\Windows\System32\oobe\UserOOBEBroker.exe
          C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
          1⤵
          • Drops file in Windows directory
          PID:5996
        • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
          C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
          1⤵
          • System Location Discovery: System Language Discovery
          PID:6272
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k GPSvcGroup
          1⤵
            PID:3576
          • C:\Windows\System32\SecurityHealthHost.exe
            \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
            1⤵
              PID:4672

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  CloseReceive.gif

                  • Path C:\Users\Admin\Desktop\CloseReceive.gif
                  • Size 460KB
                  • SHA256 919d8b33badc2c5193f74bbbe7c82724cf07bc5b45d75863c1f4627228a8cc57
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  DisconnectLock.vsd

                  • Path C:\Users\Admin\Desktop\DisconnectLock.vsd
                  • Size 557KB
                  • SHA256 9940fdd195242f2fb73d22ff8e0ff818df89b679cdd517a6a1fade7748e14a4e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  DisconnectRegister.bin

                  • Path C:\Users\Admin\Desktop\DisconnectRegister.bin
                  • Size 363KB
                  • SHA256 f37ceb806e9d4347e4cf0275714cee0f00bc1afefb38645e11ea070be15f831b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  EditClear.docx

                  • Path C:\Users\Admin\Desktop\EditClear.docx
                  • Size 16KB
                  • SHA256 a01cbf41bb83bddc4439669bbc06a4c51c712dc4ea82df9912bb607cacdde014
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  EnableRestore.xlsx

                  • Path C:\Users\Admin\Desktop\EnableRestore.xlsx
                  • Size 10KB
                  • SHA256 e130fe7281f69480313fc981c797608b2e9af65a2eb144dcdd58b76927e77ed3
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  EnterMerge.vb

                  • Path C:\Users\Admin\Desktop\EnterMerge.vb
                  • Size 484KB
                  • SHA256 ed67d7a6878c08f66e197f3dec3429c01d518259491186acbbe77fd5923f1b1f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ExpandTest.ogg

                  • Path C:\Users\Admin\Desktop\ExpandTest.ogg
                  • Size 412KB
                  • SHA256 ebd44a51bab8d296eaad9e10e2fa14d8e46ca95b9fbad328c05ca6b407166554
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ExportExpand.wmf

                  • Path C:\Users\Admin\Desktop\ExportExpand.wmf
                  • Size 339KB
                  • SHA256 31a8957e6b4a649aaad334e80ad71eb2e5fb44c29fc0b01faea06a82c2b57591
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  FormatGrant.tiff

                  • Path C:\Users\Admin\Desktop\FormatGrant.tiff
                  • Size 727KB
                  • SHA256 03fc18e50c1208610307efeb77baa5d197b71dc30adf2eba18a6f44764c7e2d2
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  GetRestart.ocx

                  • Path C:\Users\Admin\Desktop\GetRestart.ocx
                  • Size 605KB
                  • SHA256 62aee0b1b989c4ae06fdcb970f077bd4ace8c92a91282b17b6a8753fde0fee77
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ImportRedo.mpa

                  • Path C:\Users\Admin\Desktop\ImportRedo.mpa
                  • Size 630KB
                  • SHA256 08a4c5f822dfd11e0ace0b5fd9a7c267eb0f704c6b4e4e34785b2a3ee0bf538f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  LockPush.vdw

                  • Path C:\Users\Admin\Desktop\LockPush.vdw
                  • Size 775KB
                  • SHA256 13d4dd5a381908094118826905fa5ade27a0c60356af598f208168cd0b550bb1
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  MergeRename.aifc

                  • Path C:\Users\Admin\Desktop\MergeRename.aifc
                  • Size 751KB
                  • SHA256 3cd3ba4208c37fecc9112b887e7ea65ed4a6bb031fa0898c0cc0acd59de4c417
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  MountInstall.DVR

                  • Path C:\Users\Admin\Desktop\MountInstall.DVR
                  • Size 315KB
                  • SHA256 d4e698ddb69e8d5619df4468ba40cfd3c2936e8678abbf225beaf95bb3ac6a58
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  NewLock.docx

                  • Path C:\Users\Admin\Desktop\NewLock.docx
                  • Size 16KB
                  • SHA256 b824f39f9636ab0a8c8a5a1e1ba91d3edd7aa882bf280eedff3317c989879144
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  NewStart.cr2

                  • Path C:\Users\Admin\Desktop\NewStart.cr2
                  • Size 533KB
                  • SHA256 ebc942019086239c564d3bbbde4d7a7f9c93f0e1bd6873a6ca83792b0352d5b0
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  NewUse.aiff

                  • Path C:\Users\Admin\Desktop\NewUse.aiff
                  • Size 654KB
                  • SHA256 bdf902cb94453674ded1c03c8e815acbbd893494c8ecc10034b563bcc2913fac
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  OpenLock.wmv

                  • Path C:\Users\Admin\Desktop\OpenLock.wmv
                  • Size 678KB
                  • SHA256 8a9518fc7ce61940a9a24e103a6df58966bbc24091076a17f641ff0681d2cecc
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  RenameAdd.xlsx

                  • Path C:\Users\Admin\Desktop\RenameAdd.xlsx
                  • Size 12KB
                  • SHA256 a1fdec0358c9718aca151300c83191016a198a1d2569b63c83fdffa4467a9ac6
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  RequestUninstall.vsd

                  • Path C:\Users\Admin\Desktop\RequestUninstall.vsd
                  • Size 508KB
                  • SHA256 bf9ff141a969fa286376e5ea724ed768ddae95f0d59d98175c840403929061eb
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ResetFind.xltm

                  • Path C:\Users\Admin\Desktop\ResetFind.xltm
                  • Size 896KB
                  • SHA256 1d38676f84efb1ff48bf25868134868b1f00df4f02851e64ede120fd1d37f7a4
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  SendLock.docx

                  • Path C:\Users\Admin\Desktop\SendLock.docx
                  • Size 15KB
                  • SHA256 7c64f58a79dd8217daa1c8edff8033e7957588da860bb137982dbc4c860bd9a4
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  SetRevoke.sql

                  • Path C:\Users\Admin\Desktop\SetRevoke.sql
                  • Size 799KB
                  • SHA256 52a4caa04168bbd7250c7025533fca5d7a4834b8db301af7fb977d64478975e3
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  SplitResolve.js

                  • Path C:\Users\Admin\Desktop\SplitResolve.js
                  • Size 1.2MB
                  • SHA256 990f3b6479b62b914d40f709ad5332ba5d609235f8408ed1b79024c8a4f8474a
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  SubmitGrant.aifc

                  • Path C:\Users\Admin\Desktop\SubmitGrant.aifc
                  • Size 848KB
                  • SHA256 f7bf6114816fbc98b1f4280d689b6f05ff3e10402c7163d06cb63c26620709b1
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  TestRegister.jpg

                  • Path C:\Users\Admin\Desktop\TestRegister.jpg
                  • Size 387KB
                  • SHA256 8bbda4d26838c8ba962622ad2c5242d8ff6d11df6b74bb14c0627b93d0e7804f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UnblockTest.html

                  • Path C:\Users\Admin\Desktop\UnblockTest.html
                  • Size 702KB
                  • SHA256 0fd54b9b03572a72b8034efadd53c0b1a56243af78cc2ddf6aec51afe0ac966d
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UnprotectMove.tif

                  • Path C:\Users\Admin\Desktop\UnprotectMove.tif
                  • Size 436KB
                  • SHA256 eb8ead0710fbfcf51b234c621c8c7be5a042aa266e0f2514639b3c16d6c8f4c8
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UnpublishUnprotect.xhtml

                  • Path C:\Users\Admin\Desktop\UnpublishUnprotect.xhtml
                  • Size 581KB
                  • SHA256 65e00b3c41d52725d664d1cd542c8c90c60f51743c53ff01dcb50602a7b38b30
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UseSync.png

                  • Path C:\Users\Admin\Desktop\UseSync.png
                  • Size 872KB
                  • SHA256 c271ce7d60f87c5aa4d666123982fe348602d56a0a553849da37f891a3c62a86
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  WritePop.wps

                  • Path C:\Users\Admin\Desktop\WritePop.wps
                  • Size 824KB
                  • SHA256 0039bf33c7d9a9a620883e155eb64c4c07e475e203a01e5c755e61642aaac362
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Acrobat Reader DC.lnk

                  • Path C:\Users\Public\Desktop\Acrobat Reader DC.lnk
                  • Size 2KB
                  • SHA256 5e4765d6c1a31d0c670a19558717af7eebba387a180ee550cef390af7a8d98e2
                  • MD5 SHA1 SHA512 TLSH

                  Firefox.lnk

                  • Path C:\Users\Public\Desktop\Firefox.lnk
                  • Size 1KB
                  • SHA256 7038081bcc882f3aa9e44bbbfe7750edc62ec6a3259deac016292867450e2887
                  • MD5 SHA1 SHA512 TLSH

                  Google Chrome.lnk

                  • Path C:\Users\Public\Desktop\Google Chrome.lnk
                  • Size 2KB
                  • SHA256 04aaa5161c0265c9eefd499d57072bb491df70f2f2e10508dcd3359e847161a6
                  • MD5 SHA1 SHA512 TLSH

                  VLC media player.lnk

                  • Path C:\Users\Public\Desktop\VLC media player.lnk
                  • Size 923B
                  • SHA256 03fa01901177070dd8928edafaca124b3a784245ca29c23cc395b1a5fef8fec0
                  • MD5 SHA1 SHA512 TLSH