Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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 4 IoCs
  • Sets service image path in registry 2 TTPs 3 IoCs
  • ACProtect 1.3x - 1.4x DLL software 6 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 3 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 12 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 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:4252
    • 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:1996
      • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • Suspicious use of SetWindowsHookEx
        PID:1956
      • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        3⤵
        • Enumerates connected drives
        PID:3372
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:2092
    • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
      2⤵
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        C:\Users\Admin\AppData\Local\Temp\a4846aff20db1c1fcbca5dc8a182399bf1500983b18ac8562f28f99c22fb99a7.exe
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • Suspicious use of SetWindowsHookEx
        PID:1568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    9.6MB

    MD5

    4f24f057e4e405ee5cfb6f36b8280e8c

    SHA1

    da119ef9bf9de1b8b66f04b8b9b04647f485d5f1

    SHA256

    61c4e6b4e573b70359bde1bf47896191758ce53a7f53c2cbc010fa404c756787

    SHA512

    4c2e658afb7a110f8cf2a48b1c19fa4d0de8289646d3faf07b44131412fb2ee7faeb85b96d404310c15d9d3ee55180ac75915933ad718f32689376c0ec4de2bf

  • C:\Windows\SysWOW64\drivers\spools.exe

    Filesize

    9.6MB

    MD5

    30065017a3549ad9c738066a03e16f50

    SHA1

    b3fd64b8c3dd9fde827ca5439462ba2423288b23

    SHA256

    661e7f30980d8d1088eca95ff2af2be8758ca6aa8b00dee90876e28270161817

    SHA512

    610f40335163e7ad9b4e84affa3b726c0510c159c6e452bc870d6e7dedb8d4ed0f35e31419c9ed5230cb163c9be24a3875e0f8fedc1c64abb9c8879b385ae932

  • C:\Windows\SysWOW64\ftpdll.dll

    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/1568-46-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/1568-41-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/1568-28-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/1956-25-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-27-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/1956-26-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-7-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/1996-42-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/3372-47-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/3964-44-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/4252-15-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/4252-0-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/4252-16-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/4252-13-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB