Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2024 16:26

General

  • Target

    bad.ps1

  • Size

    110B

  • MD5

    23459f07fe98c203526160a5b19ee84a

  • SHA1

    b865f279d511965afb81d100d771557b02c5539f

  • SHA256

    e0d913450fcaf59df1b73c7855bb838ff86ddc84045ca69c72ebc7a8c8a53b8f

  • SHA512

    e3b4e3715eed7db197ba032f5b40b1f9476b8201cbfc39bfe60d8211cd921092c854b64e0921f28150f5dee212a688eb03630425b21b0645480594c6e8ac81a3

Malware Config

Signatures

  • NetSupport

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Control Panel 28 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\bad.ps1
    1⤵
    • Blocklisted process makes network request
    • Adds Run key to start application
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\system32\ipconfig.exe
      "C:\Windows\system32\ipconfig.exe" /flushdns
      2⤵
      • Gathers network information
      PID:8
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c attrib +h C:\Users\Admin\AppData\Roaming\STlGPF
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\system32\attrib.exe
        attrib +h C:\Users\Admin\AppData\Roaming\STlGPF
        3⤵
        • Views/modifies file attributes
        PID:4520
    • C:\Users\Admin\AppData\Roaming\STlGPF\client32.exe
      "C:\Users\Admin\AppData\Roaming\STlGPF\client32.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4712
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa3892855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x5hpska2.jja.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\STlGPF\HTCTL32.DLL

    Filesize

    320KB

    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • C:\Users\Admin\AppData\Roaming\STlGPF\NSM.LIC

    Filesize

    257B

    MD5

    7067af414215ee4c50bfcd3ea43c84f0

    SHA1

    c331d410672477844a4ca87f43a14e643c863af9

    SHA256

    2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

    SHA512

    17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

  • C:\Users\Admin\AppData\Roaming\STlGPF\PCICHEK.DLL

    Filesize

    18KB

    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • C:\Users\Admin\AppData\Roaming\STlGPF\PCICL32.DLL

    Filesize

    3.6MB

    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

  • C:\Users\Admin\AppData\Roaming\STlGPF\client32.exe

    Filesize

    117KB

    MD5

    ee75b57b9300aab96530503bfae8a2f2

    SHA1

    98dd757e1c1fa8b5605bda892aa0b82ebefa1f07

    SHA256

    06a0a243811e9c4738a9d413597659ca8d07b00f640b74adc9cb351c179b3268

    SHA512

    660259bb0fd317c7fb76505da8cbc477e146615fec10e02779cd4f527aeb00caed833af72f90b128bb62f10326209125e809712d9acb41017e503126e5f85673

  • C:\Users\Admin\AppData\Roaming\STlGPF\client32.ini

    Filesize

    617B

    MD5

    7c6854f484a279e9642d2daa9fbb9993

    SHA1

    dc6b5cf18eb9b38819eae455d3672eed0ef32c69

    SHA256

    11d81c68223fb9f7b0f6e67225aa6239a5ba84b2639294cf93b759fdcf30e35c

    SHA512

    557a1234d4c68ab49fc4757a4f85bf21b0f48c379f4ab9eba3d909d7d54f2052dcd19a0fafff0f5942b565ae2c089eeca7790ddf06aee1849a0b7477bfec5bc5

  • C:\Users\Admin\AppData\Roaming\STlGPF\msvcr100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Users\Admin\AppData\Roaming\STlGPF\pcicapi.dll

    Filesize

    32KB

    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • C:\Users\Admin\AppData\Roaming\STlGPF\remcmdstub.exe

    Filesize

    75KB

    MD5

    1768c9971cea4cc10c7dd45a5f8f022a

    SHA1

    3d199bee412cbac0a6d2c4c9fd5509ad12a667e7

    SHA256

    6558b3307215c4b73fc96dc552213427fb9b28c0cb282fe6c38324f1e68e87d6

    SHA512

    f83bf23abce316cb1b91a0ac89c1a709a58a7ec49c8493140ad7dc7a629e8f75032057889e42be3091cf351760348380634f660c47a3897f69e398849ca46780

  • memory/1756-13-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-29-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-24-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-23-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-22-0x00007FF9A1F83000-0x00007FF9A1F85000-memory.dmp

    Filesize

    8KB

  • memory/1756-51-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-0-0x00007FF9A1F83000-0x00007FF9A1F85000-memory.dmp

    Filesize

    8KB

  • memory/1756-12-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-11-0x00007FF9A1F80000-0x00007FF9A2A41000-memory.dmp

    Filesize

    10.8MB

  • memory/1756-2-0x000002322E970000-0x000002322E992000-memory.dmp

    Filesize

    136KB