Analysis

  • max time kernel
    151s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 19:21

General

  • Target

    a85144a2c4ed68d0e7ecfd200d018c4a.exe

  • Size

    512KB

  • MD5

    a85144a2c4ed68d0e7ecfd200d018c4a

  • SHA1

    f0035d0141735df4584ef1350bb5edb86c1d9502

  • SHA256

    d97b2ec5c1969d1c1704ffbf8bb9e36dac57545d353a61ad73c36d48607727c6

  • SHA512

    951e391705803ab960571e1da80f50bd743d21c9aed095c291daf46f2366ce32fde81376905cbab55599532f37cfedffcb43d3c77838e310e40a36c577c953e5

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj69:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5q

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a85144a2c4ed68d0e7ecfd200d018c4a.exe
    "C:\Users\Admin\AppData\Local\Temp\a85144a2c4ed68d0e7ecfd200d018c4a.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\SysWOW64\qzusjhsssd.exe
      qzusjhsssd.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\hdohbyux.exe
        C:\Windows\system32\hdohbyux.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2592
    • C:\Windows\SysWOW64\ncedgklqyxzgccp.exe
      ncedgklqyxzgccp.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2736
    • C:\Windows\SysWOW64\hdohbyux.exe
      hdohbyux.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2796
    • C:\Windows\SysWOW64\lhbzrpngxepik.exe
      lhbzrpngxepik.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2740
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2548
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1448
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2236

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe

            Filesize

            512KB

            MD5

            f988d763525d74ce35c7ccf583353909

            SHA1

            6b02fa1fff3f10ae34ecc738c1e56b4cb1042319

            SHA256

            2cc2e4d33414ba7ceb26674611216cd9b9bbbc1e1c0968f5840aeef6e9ae4c52

            SHA512

            534cf976c52537bc2f831173e4386c49d55bb46f84b330547f723c816c33ee9fe45afb741c6d5a096c8b9c7661aa6a9f8580b14c57eb712dbb800a594b2da98b

          • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

            Filesize

            512KB

            MD5

            64a232f106255fded44a1777cc13bcc2

            SHA1

            ab40aa6786afb9e04dc42b5bba5e7864b339de89

            SHA256

            e33b2ffa5fe5cfe2e3e7d9ece7301f0f4d26ac824770fca171d5ef187bf57972

            SHA512

            be8eca3471bdf863a61d7defd33738aa63eb06c2ebae3ed43e40d53e1a60e14f048a07bf6e8028b0808acbe572c9ccf1cae58204b64627578552f4bc7428d8c9

          • C:\Users\Admin\Documents\ReadMeasure.doc.exe

            Filesize

            512KB

            MD5

            a1c20c24e932dcc8fd5cc425a7b0d112

            SHA1

            682f91ef978c1fa515359623b312c6cca7b5cd9e

            SHA256

            7c49364b25544858883ab52712fac2aeba2dbcfdcf3bcb8382e4439588a4b98d

            SHA512

            21eedfe32eee05ec99b5dd6b83a42f274d4bf3564b40f90f919471fb4601ffcd2fb09cd41647e0ce4afe2d7741155a86f3e8cedf75e7acf37398591c891fae2d

          • C:\Windows\SysWOW64\hdohbyux.exe

            Filesize

            512KB

            MD5

            82705f0dc5ebf694ba61227335377421

            SHA1

            df318424b343dd724321be90dd09d98ab2dbc40d

            SHA256

            8e8a5b2f059c967c5a903fa7fb74dea454aa17913ff7ba55b892af5a9155e759

            SHA512

            1f1ffc995a4b2d3e81c75880a4452af6970373892ed317b4c18c78d86807b6bc43ba71cf6c80264a2c80e065ca155343fd77e0089d6e0281b0caefcec9276cea

          • C:\Windows\SysWOW64\lhbzrpngxepik.exe

            Filesize

            512KB

            MD5

            4c52a7a48dead386ad735c2fff0cfaac

            SHA1

            0b235dd2a2b4ec68d89b4cc75be02a8cac4589bf

            SHA256

            6a9af4623df9388484fdbfd282f99328f44921110118cd2124e1f0805db92888

            SHA512

            7a4b61d55d14d840bfd27d6d2f3423e3035bfa426eb882ff96bc6f95aafcf23e99a8c38009374cfdcb4751bac252becf75ecc696737bbf27be549e8bf51bd27e

          • C:\Windows\SysWOW64\ncedgklqyxzgccp.exe

            Filesize

            512KB

            MD5

            48d479463d3b366c2074058b3c64f98b

            SHA1

            60bc43533f3c96c2d99b251b4ce7c436494656ef

            SHA256

            536072d51d699474d3375a8a213088d18ed6c47a35a0603a739e39e33c08844d

            SHA512

            c436d78ba6348d6c0dfad51371f78bbcca01cb28a4f9b02d5bbfb217f58558742723684038054648dd147ba93ecf146803230a5cb8241854bc742e593960d4ca

          • C:\Windows\mydoc.rtf

            Filesize

            223B

            MD5

            06604e5941c126e2e7be02c5cd9f62ec

            SHA1

            4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

            SHA256

            85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

            SHA512

            803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

          • \Windows\SysWOW64\qzusjhsssd.exe

            Filesize

            512KB

            MD5

            4a27a8437e9cb97352373150b0a686fe

            SHA1

            65e96fa6c3d81ca25a698112cc12574983e9a9ff

            SHA256

            222f4a0ff98c18dcf36651666128fcc0d9a389e003387fb0e8e112ef67373fad

            SHA512

            511653a39416d16ec76418a5eb939680a690d3818d3f5a4fffcaba4bf1fc4cb0d2bba280494ed7e34ca6e4ae52906af524a13979da40c9e3c4a70f620995bb4e

          • memory/1904-0-0x0000000000400000-0x0000000000496000-memory.dmp

            Filesize

            600KB

          • memory/2236-87-0x0000000003C30000-0x0000000003C31000-memory.dmp

            Filesize

            4KB

          • memory/2236-91-0x0000000003C30000-0x0000000003C31000-memory.dmp

            Filesize

            4KB

          • memory/2548-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2548-47-0x000000007170D000-0x0000000071718000-memory.dmp

            Filesize

            44KB

          • memory/2548-45-0x000000002F7C1000-0x000000002F7C2000-memory.dmp

            Filesize

            4KB

          • memory/2548-89-0x000000007170D000-0x0000000071718000-memory.dmp

            Filesize

            44KB