Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 08:47

General

  • Target

    a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe

  • Size

    9.6MB

  • MD5

    6d76eccef17c33d108fea2d3b0f1846b

  • SHA1

    9a3cce565571735201fa82a23e86660e75677144

  • SHA256

    a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7

  • SHA512

    86bd624e147d0001ad79cc2a3cad33b7e8594fdbbde55f2a3c1178ebfd6f9bc91dd60382ac5f0d38422bc5381e55dd74587d26042aa1c007a0f0bc7a4536e66e

  • SSDEEP

    196608:N7effIPEsy58doQaTxLhQyZbIly38doQalArdfehQM2gsyVCQlXlAryfEQuMozkt:N7effIPEsy58doQaTxLhQyZbIly38do9

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 2 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 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 4 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
    "C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.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:2988
    • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        3⤵
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        PID:2604
    • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      PID:3020
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    9.6MB

    MD5

    62b81d25f80807b99c54a7ef9fa85ab9

    SHA1

    1c9f32fd8f63d3c65a96b6180b7e38ae192352cb

    SHA256

    b245fd50a7d236c4da06d3d2b24cbec498f45306379eeae22843ab28a9bb5981

    SHA512

    727bb4f717cbab5bbec9aaf3cc6e1edfa81c8bac77e2a35d09cb7a04527ea97ebc90f76d89f4c73729f8f1e0fd7157fc6d62094670cc70f922fa0da566b0c561

  • \Windows\SysWOW64\ftpdll.dll

    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/2604-38-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2648-33-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2648-37-0x0000000000230000-0x0000000000253000-memory.dmp

    Filesize

    140KB

  • memory/2988-0-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2988-1-0x00000000002B0000-0x00000000002D3000-memory.dmp

    Filesize

    140KB

  • memory/2988-27-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/2988-31-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2988-32-0x00000000002B0000-0x00000000002D3000-memory.dmp

    Filesize

    140KB

  • memory/2988-35-0x00000000002B0000-0x00000000002D3000-memory.dmp

    Filesize

    140KB

  • memory/3020-36-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB