Analysis

  • max time kernel
    139s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2023, 07:56

General

  • Target

    31ad769e886e84be8ba35cb076ef523d.exe

  • Size

    2.1MB

  • MD5

    31ad769e886e84be8ba35cb076ef523d

  • SHA1

    ca20f2848ce8824c769fe5e9b823a87ee7c6d11d

  • SHA256

    0860dafaa3db5f440b61cea445c066dcbad2285512eb2962236ad1a8366bf527

  • SHA512

    7bd4fa4ac478c7db6f45c2c91cc4d2b94e404c2608b905361e1c12270074f0a61ddf76a180f7498cdd6e3e03b37025cca729b5bab4eb2bc13f24b21d57eae503

  • SSDEEP

    49152:Pe2YDJkISrSzXcW5FLEg95FnkLl6XVQsZL2UvMSvWNEh+thP4Gzg:PxEkISrmXcA7p8l6GKDTIo+tJS

Score
10/10

Malware Config

Signatures

  • NetSupport

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31ad769e886e84be8ba35cb076ef523d.exe
    "C:\Users\Admin\AppData\Local\Temp\31ad769e886e84be8ba35cb076ef523d.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Users\Admin\AppData\Roaming\smssc\smssc.exe
      "C:\Users\Admin\AppData\Roaming\smssc\smssc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    320KB

    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

    Filesize

    320KB

    MD5

    2d3b207c8a48148296156e5725426c7f

    SHA1

    ad464eb7cf5c19c8a443ab5b590440b32dbc618f

    SHA256

    edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

    SHA512

    55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

  • C:\Users\Admin\AppData\Roaming\smssc\MSVCR100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

    Filesize

    257B

    MD5

    7067af414215ee4c50bfcd3ea43c84f0

    SHA1

    c331d410672477844a4ca87f43a14e643c863af9

    SHA256

    2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

    SHA512

    17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

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

    Filesize

    18KB

    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

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

    Filesize

    3.6MB

    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

  • C:\Users\Admin\AppData\Roaming\smssc\PCICL32.dll

    Filesize

    3.6MB

    MD5

    00587238d16012152c2e951a087f2cc9

    SHA1

    c4e27a43075ce993ff6bb033360af386b2fc58ff

    SHA256

    63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

    SHA512

    637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

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

    Filesize

    662B

    MD5

    d03d9e00e1aec20e5a88dff73c5ce802

    SHA1

    c92d76935f7e88db70cc04872da43dae159958d5

    SHA256

    74ee2c5aa4f958821f00fdc9d2b7ae045eb431e9b18f2a518c8b57e68e46fc68

    SHA512

    39c077e2334a0b16962d85ee2aab1eb5cc72015b8a5dc3ffb35356c6be73e6b49730d198699c6103a35d6b598f9a2f4d5ca99084213d001d888509292a714928

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

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

    Filesize

    32KB

    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

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

    Filesize

    32KB

    MD5

    dcde2248d19c778a41aa165866dd52d0

    SHA1

    7ec84be84fe23f0b0093b647538737e1f19ebb03

    SHA256

    9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

    SHA512

    c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

  • C:\Users\Admin\AppData\Roaming\smssc\pcichek.dll

    Filesize

    18KB

    MD5

    a0b9388c5f18e27266a31f8c5765b263

    SHA1

    906f7e94f841d464d4da144f7c858fa2160e36db

    SHA256

    313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

    SHA512

    6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

  • C:\Users\Admin\AppData\Roaming\smssc\smssc.exe

    Filesize

    103KB

    MD5

    8d9709ff7d9c83bd376e01912c734f0a

    SHA1

    e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

    SHA256

    49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

    SHA512

    042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

  • C:\Users\Admin\AppData\Roaming\smssc\smssc.exe

    Filesize

    103KB

    MD5

    8d9709ff7d9c83bd376e01912c734f0a

    SHA1

    e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

    SHA256

    49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

    SHA512

    042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

  • C:\Users\Admin\AppData\Roaming\smssc\smssc.exe

    Filesize

    103KB

    MD5

    8d9709ff7d9c83bd376e01912c734f0a

    SHA1

    e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

    SHA256

    49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

    SHA512

    042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee