Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241023-en
  • resource tags

    arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31-10-2024 00:00

General

  • Target

    fedxrtdxt.ps1

  • Size

    480B

  • MD5

    3e390f3b3ca7d3716775f832c93fb1b1

  • SHA1

    5cc8837f0f87f71c5551c009a69fa12daf3254d4

  • SHA256

    11464f7ac40e3e5f771dfe19aee3b3d21cf526a11429038ba9de4c9d7e4bb42a

  • SHA512

    8a71a94cb17699100bba67478e5ab0fa14f93b68d0efdcbbf1a35cb5a1d20d05a36c63b0a8be559645a084aee2109a2c77eaa7e6ecd89a99ffaf670100d56c30

Malware Config

Signatures

  • NetSupport

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

  • Netsupport family
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies registry class 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\fedxrtdxt.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "VFS\ProgramFilesX64\13\13.exe e VFS\ProgramFilesX64\7z24083.7z -oC:\Users\Public\7z2408 -p7z24083"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Users\Admin\AppData\Local\Temp\VFS\ProgramFilesX64\13\13.exe
        VFS\ProgramFilesX64\13\13.exe e VFS\ProgramFilesX64\7z24083.7z -oC:\Users\Public\7z2408 -p7z24083
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4920
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "VFS\ProgramFilesX64\13\13.exe e C:\Users\Public\7z2408\7z24082.7z -oC:\Users\Public\7z2408 -p7z24082"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Users\Admin\AppData\Local\Temp\VFS\ProgramFilesX64\13\13.exe
        VFS\ProgramFilesX64\13\13.exe e C:\Users\Public\7z2408\7z24082.7z -oC:\Users\Public\7z2408 -p7z24082
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3956
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "VFS\ProgramFilesX64\13\13.exe e C:\Users\Public\7z2408\7z24081.7z -oC:\Users\Public\7z2408 -p7z24081"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Users\Admin\AppData\Local\Temp\VFS\ProgramFilesX64\13\13.exe
        VFS\ProgramFilesX64\13\13.exe e C:\Users\Public\7z2408\7z24081.7z -oC:\Users\Public\7z2408 -p7z24081
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4676
    • C:\Users\Public\7z2408\7Zz.exe
      "C:\Users\Public\7z2408\7Zz.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2928
    • C:\Users\Public\7z2408\7z2408-x64.exe
      "C:\Users\Public\7z2408\7z2408-x64.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:3108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ug0orlxv.bif.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Public\7z2408\7Zz.exe

    Filesize

    54KB

    MD5

    ecd18e8d01589119199a0334df4975e1

    SHA1

    c44e84675a79746f5f9868b7730f80156dd5f122

    SHA256

    0d191647a5b16a6f9521a16b0e262a3aea98537eeec94a542da9a812060160f1

    SHA512

    6231deb1a2d3d76723bfea2aa9710b14f4c447e6fe22fd9e1b97b79457a9f9fbaa2c8a713cd7580144313569820e4c46ee0c040a02aed411ad4e79781aad0eb1

  • C:\Users\Public\7z2408\7z2408-x64.exe

    Filesize

    1.5MB

    MD5

    0330d0bd7341a9afe5b6d161b1ff4aa1

    SHA1

    86918e72f2e43c9c664c246e62b41452d662fbf3

    SHA256

    67cb9d3452c9dd974b04f4a5fd842dbcba8184f2344ff72e3662d7cdb68b099b

    SHA512

    850382414d9d33eab134f8bd89dc99759f8d0459b7ad48bd9588405a3705aeb2cd727898529e3f71d9776a42e141c717e844e0b5c358818bbeac01d096907ad1

  • C:\Users\Public\7z2408\7z24081.7z

    Filesize

    3.0MB

    MD5

    6135175b8d095c84868ae935241cc5fb

    SHA1

    f29455f576387772186b61a95f77619ab36bc45f

    SHA256

    aace8bbc267b10781630d44c13e6646bda8e789a43767238accfcaf7b34829fb

    SHA512

    4ca7ed28c2ddfaba58dcc8a426bd40de0052b37607da183a53a60ce60d4f428c14c48c2d6ac904dcf5563f5c2e7b6261bf5233c0042dc07bcd0a931ecd29b18a

  • C:\Users\Public\7z2408\7z24082.7z

    Filesize

    3.0MB

    MD5

    303355db98e7fc43f6a55eb4554e3c2f

    SHA1

    187f574425bdaa042ab252985f05efd249c7080e

    SHA256

    68eaf2d3b4361f07bf9d61f485cdb55f3b84bdc3f455a8493060aaa2608f3d18

    SHA512

    8ef8a017dd929e48c06f7f914086ff6c6e883b9daf50b771bc5d49fca6719b9b600a369439ddd9e4e0149f173bc56dd051f076d0650a0ec845e7857f369b7399

  • C:\Users\Public\7z2408\HTCTL32.DLL

    Filesize

    320KB

    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • C:\Users\Public\7z2408\MSVCR100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Users\Public\7z2408\NSM.LIC

    Filesize

    2KB

    MD5

    c3acb1af45f26f321b16254a1150e5cc

    SHA1

    49267c214c8fafed1570a61b4aafb5b2a02fba6a

    SHA256

    6f22d4f19fd1bd72005354747065f6be2282983481def538cdede31df6bebdea

    SHA512

    97520c355b4b68bbe96606debd9fcb6fb13ecddcd35e6281c34175e4c582111c3f23bf16d27945a5f436a4a99472838de643b700ffb0f45cbeda45fe158436f3

  • C:\Users\Public\7z2408\PCICHEK.DLL

    Filesize

    18KB

    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • C:\Users\Public\7z2408\PCICL32.dll

    Filesize

    3.5MB

    MD5

    ad51946b1659ed61b76ff4e599e36683

    SHA1

    dfe2439424886e8acf9fa3ffde6caaf7bfdd583e

    SHA256

    07a191254362664b3993479a277199f7ea5ee723b6c25803914eedb50250acf4

    SHA512

    6c30e7793f69508f6d9aa6edcec6930ba361628ef597e32c218e15d80586f5a86d89fcbee63a35eab7b1e0ae26277512f4c1a03df7912f9b7ff9a9a858cf3962

  • C:\Users\Public\7z2408\client32.ini

    Filesize

    643B

    MD5

    1e0a3c2d57c3c5b35000a3b68caffdc1

    SHA1

    241d08e62460d6e08b5a661f050bcce9bf94e73e

    SHA256

    7b0679e219f8dfc250128449f8885235a10e321b3e5577b66e172dbc1a7541ce

    SHA512

    9f618299808f23531d82bd901727a8ce4f5f95816fe34c0514be4f4e1a7c9201d057d046b372b1d2275a476b5488846c5b781f9b989a3df41275ca277d670365

  • C:\Users\Public\7z2408\pcicapi.dll

    Filesize

    32KB

    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • memory/2328-12-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

    Filesize

    10.8MB

  • memory/2328-0-0x00007FFC89233000-0x00007FFC89235000-memory.dmp

    Filesize

    8KB

  • memory/2328-11-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

    Filesize

    10.8MB

  • memory/2328-10-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

    Filesize

    10.8MB

  • memory/2328-64-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

    Filesize

    10.8MB

  • memory/2328-1-0x0000018B1E490000-0x0000018B1E4B2000-memory.dmp

    Filesize

    136KB