Overview

overview

10

Static

static

5

2b2334be59...3f.exe

windows7-x64

10

2b2334be59...3f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    102s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 06:05

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General

  • Target

    2b2334be59840289104b40fa956f903f.exe

  • Size

    512KB

  • MD5

    2b2334be59840289104b40fa956f903f

  • SHA1

    5302f0e8e3606297177fc0d9c8888d668cddec8c

  • SHA256

    6be4c767472e4ce61785ce65c1e8b54461353a843689c5bb1b40712efc620741

  • SHA512

    fbef0d95a50db0bb3025efc8be62ba0e275bf446da8482966b7b09c36529fbcba1731c8d6895510a5ea6244b5ff9bb5405043e2121a898f59b7c18502f8178c5

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6u:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5p

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • 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.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • 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
    persistence
  • AutoIT Executable 2 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
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b2334be59840289104b40fa956f903f.exe
    "C:\Users\Admin\AppData\Local\Temp\2b2334be59840289104b40fa956f903f.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:2744
    • 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:568
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1204
      • C:\Windows\SysWOW64\hmepwyrculrhl.exe
        hmepwyrculrhl.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2580
      • C:\Windows\SysWOW64\ronfmjar.exe
        ronfmjar.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:2728
      • C:\Windows\SysWOW64\ydolthmlqwykium.exe
        ydolthmlqwykium.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1892
      • C:\Windows\SysWOW64\pvyleczius.exe
        pvyleczius.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:2768
    • C:\Windows\SysWOW64\ronfmjar.exe
      C:\Windows\system32\ronfmjar.exe
      1⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c hmepwyrculrhl.exe
      1⤵
        PID:2572

      Network

            MITRE ATT&CK Enterprise v15

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            Downloads

            • \Windows\SysWOW64\ydolthmlqwykium.exe
              Filesize

              92KB

              MD5

              6662b185f19fbf697c56a25c92de7961

              SHA1

              0df0c0df0de3724258df2549c583e3c934aca726

              SHA256

              c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

              SHA512

              c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

              Download Submit

            • memory/568-45-0x000000002F1B1000-0x000000002F1B2000-memory.dmp

              Filesize

              4KB

              Download

            • memory/568-47-0x0000000070E6D000-0x0000000070E78000-memory.dmp

              Filesize

              44KB

              Download

            • memory/568-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

              Filesize

              64KB

              Download

            • memory/568-85-0x0000000070E6D000-0x0000000070E78000-memory.dmp

              Filesize

              44KB

              Download

            • memory/568-106-0x000000005FFF0000-0x0000000060000000-memory.dmp

              Filesize

              64KB

              Download

            • memory/2744-0-0x0000000000400000-0x0000000000496000-memory.dmp

              Filesize

              600KB

              Download