Analysis

  • max time kernel
    95s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 02:21

General

  • Target

    2a0f495cd25dcbf02b2b0b11032d32a0460c9b7c5ad491afa4060ea3ca675f90.msi

  • Size

    4.5MB

  • MD5

    999440b3b0609a7fa2f06f4d07fa8e6e

  • SHA1

    a6b7839d287c71e8c724df8cc024c4f7d7ae9057

  • SHA256

    2a0f495cd25dcbf02b2b0b11032d32a0460c9b7c5ad491afa4060ea3ca675f90

  • SHA512

    c98a2dc0d1aba3b4e8488461caba4fa09656b623914161c7956a09c98c1d12835cddf5d499f97535c4886b104bd0870e4f2fd27a7e69ba9c4d58165e3907bb7d

  • SSDEEP

    98304:DAowTTYcM2Pewg9Y6mnjZpLhL8QaQs74iQlSKsrM18o4bbmo+IW/+b:DAouq2PW9YJjjLhPq4VlSKuMkb7r++b

Malware Config

Signatures

  • NetSupport

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

  • Netsupport family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Blocklisted process makes network request 4 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 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 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 SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\2a0f495cd25dcbf02b2b0b11032d32a0460c9b7c5ad491afa4060ea3ca675f90.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4764
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4392
      • C:\Windows\system32\reg.exe
        reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v ScreenConnect /t REG_SZ /d "C:\ProgramData\MScreenConnect\client32.exe"
        2⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:3380
      • C:\ProgramData\MScreenConnect\client32.exe
        "C:\ProgramData\MScreenConnect\client32.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        PID:4648
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3996

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e57fa6e.rbs

      Filesize

      10KB

      MD5

      367cdc4bab28b068461499e5aa681202

      SHA1

      a650358a225595c9cc54c86fc58681bc0a5c4299

      SHA256

      c8c5fb3c4c6276ec31d048deeacbdaeb5d5c6667c55bc7bfd2f1d3588d4350ba

      SHA512

      e14bf4bbf885f1748660f2be510b5ba572b69648c0e68d1c28cdea58c200ce4cd3d0c7484103dadb1e64ad22b5191fcf38ee68126bae43789346cd961fe54151

    • C:\ProgramData\MScreenConnect\HTCTL32.DLL

      Filesize

      306KB

      MD5

      3eed18b47412d3f91a394ae880b56ed2

      SHA1

      1b521a3ed4a577a33cce78eee627ae02445694ab

      SHA256

      13a17f2ad9288aac8941d895251604beb9524fa3c65c781197841ee15480a13f

      SHA512

      835f35af4fd241caa8b6a639626b8762db8525ccceb43afe8fffc24dffad76ca10852a5a8e9fc114bfbf7d1dc1950130a67037fc09b63a74374517a1f5448990

    • C:\ProgramData\MScreenConnect\NSM.LIC

      Filesize

      262B

      MD5

      b9956282a0fed076ed083892e498ac69

      SHA1

      d14a665438385203283030a189ff6c5e7c4bf518

      SHA256

      fcc6afd664a8045bd61c398be3c37a97536a199a48d277e11977f93868ae1acc

      SHA512

      7daa09113c0e8a36c91cc6d657c65851a20dff6b60ac3d2f40c5737c12c1613c553955f84d131ba2139959973fef9fc616ca5e968cb16c25acf2d4739eed87eb

    • C:\ProgramData\MScreenConnect\PCICAPI.dll

      Filesize

      44KB

      MD5

      9daa86d91a18131d5caf49d14fb8b6f2

      SHA1

      6b2f7ceb6157909e114a2b05a48a1a2606b5caf1

      SHA256

      1716640cce74322f7ee3e3e02b75cd53b91686f66e389d606dab01bd9f88c557

      SHA512

      9a98e0d9e2dda8aefa54bddb3c7b71501d638dff68863939de6caa117b0e7bf15e581a75419ef8a0da3f1c56a19f1b0f4c86d65f8581773ab88ff5764b9bb3aa

    • C:\ProgramData\MScreenConnect\PCICHEK.DLL

      Filesize

      27KB

      MD5

      e311935a26ee920d5b7176cfa469253c

      SHA1

      eda6c815a02c4c91c9aacd819dc06e32ececf8f0

      SHA256

      0038ab626624fa2df9f65dd5e310b1206a9cd4d8ab7e65fb091cc25f13ebd34e

      SHA512

      48164e8841cfc91f4cbf4d3291d4f359518d081d9079a7995378f970e4085b534f4bafc15b83f4824cc79b5a1e54457b879963589b1acbcfe727a03eb3dffd1c

    • C:\ProgramData\MScreenConnect\PCICL32.dll

      Filesize

      3.3MB

      MD5

      f782c24a376285c9b8a3a116175093f8

      SHA1

      b8fdb6e95c7313cf31f14a3a31cc334b56e6df09

      SHA256

      c7baf1647f6fef1b1a4231c9743f20f7a4b524ca4eb987a0acbeeef7e037d7e3

      SHA512

      256385a6663dcf70a5a9a1b766d1f826760f07efa9b9248047dc43d41f6a9f4dd56ca2b218c222ea1d441e2f7ba9bb114cde6954827b9761ebb1f23bba7ad1bb

    • C:\ProgramData\MScreenConnect\client32.exe

      Filesize

      104KB

      MD5

      f6abef857450c97ea74cd8f0eb9a8c0a

      SHA1

      a1acdd10f5a8f8b086e293c6a60c53630ad319fb

      SHA256

      db0acb4a3082edc19ca9a78b059258ea36b4be16eee4f1172115fc83e693a903

      SHA512

      b6a2196ebfa51bb3fb8fb2b95ad5275828ab5435fd859fc993e2b3ed92a74799fe1c8b178270f99c79432f39aa9dbc0090038f037fcb651ab75c14b18102671f

    • C:\ProgramData\MScreenConnect\client32.ini

      Filesize

      664B

      MD5

      14f6ebed5e1176f17c18d00a2dc64b2e

      SHA1

      cb9c079373658ce098e1d07d4a2c997bf3141b4b

      SHA256

      d4c1f00382f01abbb3142ef6d9c3e51557d0ced12a52861d8c5df44d1ce723ac

      SHA512

      e5f24a695749d693e873ea60b8caaff5cb3b306887721e3f9f308afe697fba37f3a6226322aedebb46764d6bbbaf21df44d4c6a02db49b067437d7e7d0cceaf9

    • C:\ProgramData\MScreenConnect\msvcr100.dll

      Filesize

      755KB

      MD5

      0e37fbfa79d349d672456923ec5fbbe3

      SHA1

      4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

      SHA256

      8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

      SHA512

      2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\30069012ED3CF5DB92F9F4FC78D55E2D_16AA5B9B040CB195ADDB70661F18F3C5

      Filesize

      1KB

      MD5

      484c0c34cab2ef04cfae3da0db840ccd

      SHA1

      b5f8869fcad2017fafb157c983616a3a40a3b348

      SHA256

      39568eb54bd21a69ebe8c36b07a23095f5b44f1e30bc84e945ae1e51735614d8

      SHA512

      9c423697660040ac819098ea019fbccc940c1e8be9b40d04e4101a2a4b362ea1a3898db5b2ec21027bf74eaf1f62e1831eedb26495c617700f6cb94e5d5f9e9e

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B03113490075047F519A3F760F0FF379_E0C89CBF9F7C022C313E80748FA098C7

      Filesize

      2KB

      MD5

      84cee9c731e89101f9867685ae16e9f2

      SHA1

      8febfb442bd3ce44324a1acf14fd0c02b9398105

      SHA256

      cbfee9894c18821c7c09ca82fc395793219aab7d2bbc4357add2cbe638337208

      SHA512

      5cf6cf4d4063b0f31c7d96278bb6c3b95881718e8ff67ce5607bb013f9411891ff17d4076e0bb064b74dad6deede6deefe80c524d1473d1fc28b9ccca02c9403

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\30069012ED3CF5DB92F9F4FC78D55E2D_16AA5B9B040CB195ADDB70661F18F3C5

      Filesize

      412B

      MD5

      83eea1c8afdd6a5e005f0e93420d06a7

      SHA1

      7581ec9ae36554d0ad6033915f3fc6931f27ff94

      SHA256

      8d827b7b78732787a76689df967cfad24a262e23ef9b2575eec59c4d3cb32ceb

      SHA512

      e2b033c9017b85c6ce5e11a15b308e40877889d4ccc0ecaddbfacefcb55394858d6bbf4dc57eb38d98fa3b16147ef13e01a0268f3ce3d2aa327e6d4db58d4efe

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B03113490075047F519A3F760F0FF379_E0C89CBF9F7C022C313E80748FA098C7

      Filesize

      428B

      MD5

      98f8065e34252462f74cc145f7b1c623

      SHA1

      41386746aea47e45b90b94113314ee5f4bc4bd24

      SHA256

      4c9b91806058ff80780fcd125489311335e020da4025fff8850559c44ba82c9e

      SHA512

      543ebe3f528aad99eff5c19a368024806f2335a25b1b8aa9590f871920d092ac9f2c38dcfd5487798ec5cf6cb424abaa945de1ae25fd5c0f9ef799e0fa871ee4

    • C:\Windows\Installer\e57fa6d.msi

      Filesize

      4.5MB

      MD5

      999440b3b0609a7fa2f06f4d07fa8e6e

      SHA1

      a6b7839d287c71e8c724df8cc024c4f7d7ae9057

      SHA256

      2a0f495cd25dcbf02b2b0b11032d32a0460c9b7c5ad491afa4060ea3ca675f90

      SHA512

      c98a2dc0d1aba3b4e8488461caba4fa09656b623914161c7956a09c98c1d12835cddf5d499f97535c4886b104bd0870e4f2fd27a7e69ba9c4d58165e3907bb7d

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

      Filesize

      24.1MB

      MD5

      81b65fc0f1aeefe2d329791484e908fc

      SHA1

      0fdda08967c2b9cc7278c00acb34caef2c9cb3f3

      SHA256

      79090345175c5568301946ba3c60ac050f75d6d7de0d0275946b6190298f54aa

      SHA512

      4ef5f14e9ce8c40773bd9d114abd071dec50606fd5895d16aebecb3749f31495396d2759a3ae56e58c619adaba7be4116dbbc842798b3f0e7c63beaabbc2d7f9

    • \??\Volume{0576a638-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{54081879-9108-4248-908e-bffccdb238eb}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      35123a0cbbac4c6d2a3a226c95b28e0d

      SHA1

      18d144adb3715f7c342d3105318cd19fb567238a

      SHA256

      575fa28083a15b2c275b227f53ea52c4512f4a6a49836746fe985e09001f9327

      SHA512

      191e745648b673b60c93516e21d8ba0f307e58a6ebcac6063c0d7bb4247289172b639795de6b51e8b32bf464500e946442f0b1a7fb7c7eec2652db6b9368ff90