Analysis

  • max time kernel
    161s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2024, 22:42

General

  • Target

    8ab8bf8a5cf4147b3fab5b214db8454e.exe

  • Size

    8.2MB

  • MD5

    8ab8bf8a5cf4147b3fab5b214db8454e

  • SHA1

    5f522220566a4363df48dc78c55f324e2fcabdf9

  • SHA256

    68f90121aaa88d93dfd4cb25fb182d0445bbd9a5a8563b4fe14b3eb341188df6

  • SHA512

    8c15182f61e053009eefa7a83dc9efa678ee1712885da8505ab4220a7e3aacd24a3eb51ce584ea453a71ee788521bb4010909f5c800c54962b154c59ebd77e4f

  • SSDEEP

    196608:N7effIPEsy58doQaTzwZ8Jq3ELhf8cHpLG8doQpu8rVtxQuULG8doQal1Bf80bMI:N7effIPEsy58doQaTzwZ8Jq3ELhf8cHb

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 4 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
      C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4048
      • C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
        C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
        3⤵
        • Enumerates connected drives
        PID:1700
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:1148
    • C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
      C:\Users\Admin\AppData\Local\Temp\8ab8bf8a5cf4147b3fab5b214db8454e.exe
      2⤵
      • Enumerates connected drives
      PID:2088

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\cftmon.exe

          Filesize

          8.2MB

          MD5

          894e01aaa1f501fa3c8930d535cf513f

          SHA1

          a86e37782aef20f5f5cf6c3468727f8b8ea8e3e6

          SHA256

          7676fab10ac3d7c697a6395d180d0ec24cd0f2f8684fcf899a8108fcda485b20

          SHA512

          8703bded7c912e746e45fd461557eff32a4a100fabfd814abfc91aa3e24d0ac5cef41ba37d4ff3cad3901f4f0442edaa6bdaa3d0536a0f25a2582f9f4c51855e

        • C:\Windows\SysWOW64\ftpdll.dll

          Filesize

          5KB

          MD5

          d807aa04480d1d149f7a4cac22984188

          SHA1

          ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

          SHA256

          eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

          SHA512

          875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

        • memory/1700-19-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2088-18-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2116-0-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2116-13-0x0000000010000000-0x000000001010B000-memory.dmp

          Filesize

          1.0MB

        • memory/2116-14-0x0000000010000000-0x000000001010B000-memory.dmp

          Filesize

          1.0MB

        • memory/2116-15-0x0000000010000000-0x000000001010B000-memory.dmp

          Filesize

          1.0MB

        • memory/2116-16-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/4048-1-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/4048-17-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB