Analysis

  • max time kernel
    220s
  • max time network
    201s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250313-en
  • resource tags

    arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28/03/2025, 13:52

General

  • Target

    SuperViewer Installer/Volume/bin/p25/mkl.msi

  • Size

    1.1MB

  • MD5

    fb9f33ec0782257bc7a3db6c1c79dd2e

  • SHA1

    8db2e3e98514d702e2abf1c26f52f9df99c8aace

  • SHA256

    2581e85c1a7accaf85babf7f4c8092856289a6fb90308966c7f29d94dab14a1a

  • SHA512

    5ee439b61bf8e79199e16fce549fefc896a54c67822c302afae706a31ce0b48623ae7defc8b7450b8ac08f5557cc7c9aaf3c9fdc45d419edb2d0d604a3613ced

  • SSDEEP

    24576:BFMt9Ro/3GNP42Is+TQNxshTK+63S3ZgTqGgeSZUf/:BFMt9VP42IlC2PJg6Uf

Score
6/10

Malware Config

Signatures

  • 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 Program Files directory 4 IoCs
  • Drops file in Windows directory 19 IoCs
  • Loads dropped DLL 11 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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.

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\SuperViewer Installer\Volume\bin\p25\mkl.msi"
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4516
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1DF31A56811B768A73E64C01984FE765 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:880
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2524
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 649373F8E67A0055A0F24A10667BFD82
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:572
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4360

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e58317c.rbs

      Filesize

      13KB

      MD5

      8259dea6ca62158610fa06590f7a82fd

      SHA1

      a3ef62dc0dc126a6637defd277cc3d486b0808b4

      SHA256

      066aaef2e0c220ed58b4145900132bb62721507855a6a2bb995f9b0bd94a6109

      SHA512

      4a29801488eb33eda12a80402b4d09dc0693d9754a93baecfcc9b0c7e81fbce2745589c6fdf9cb5f5ad2ac9c49ed5e865eeb2899f28e4fdbfbc62e79cb3da574

    • C:\Users\Admin\AppData\Local\Temp\MSI97DB.tmp

      Filesize

      639KB

      MD5

      c6417930af8969f9f2cb431acd76ec89

      SHA1

      d2f2dc9b44f5f79348f7f36091b26a5465ad4f2b

      SHA256

      1b89704532113150fc7a8a06b5367ee26937c346635a860e93662e1fbb5cd79b

      SHA512

      f30d7a5b51f5d866ccabf3e15a45d3b4013e28a9bdaaf2176e8b121fbd4ab41a8e67c059b2ece8db5bc7a0ce043e76bbc4e3f6400fb9cd2886e1ffcd9e65d79b

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

      Filesize

      24.6MB

      MD5

      121ed336f4cadca398eabf48e1ab7b86

      SHA1

      e773656cfc900709e640b8eb230b9cb5a26637e2

      SHA256

      450b5368bdd275fe2e0b8e9cada9ce853d0049df590567aefe136098c7786079

      SHA512

      545df2921158a280d2da7df4fb12d2d6889575fee658b2c405ed7ebe7483720757b1033aba65bf4e19654e849cc1bed77843214a657c771d3d8ac884b0ab390f

    • \??\Volume{f82ec716-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b3973f3f-3c6e-4b93-920d-5ee80b1b15bc}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      c48ecceb18103e9ff44d8310986cba51

      SHA1

      78834945f0e61de7c40b69ac4ca22d2f89181cca

      SHA256

      51b0caa48f74988ad4d4d428eae8098bffc9cfee43c69280ea52440af404b9f5

      SHA512

      7b2c0c833f70f1e139e6ae64a1cd8517499750842e19d961ed83415e41af7168552f6844c2ad87caab0ea6926ea669c36f8a193c42f21433df515238b51b58cc