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Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2023, 17:54

General

  • Target

    NEAS.4ea1a42d62bbcce91284af6179e470a0.exe

  • Size

    135KB

  • MD5

    4ea1a42d62bbcce91284af6179e470a0

  • SHA1

    15bc5f47c736f13996b603c4c48803cf8dcc0c19

  • SHA256

    45adf5ec60fc488c46bea8d719c14e8f7c12d343c2288bae8608d4db5a71faef

  • SHA512

    176debb9aba1561ca8b067e25bfff3e83b984d0c53ab96b37e704d83f7c5e89c6c51e57cf3aabda290c620fc246ede86d532acad25bb329dd0701eb1ac172d86

  • SSDEEP

    1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVBXf:UVqoCl/YgjxEufVU0TbTyDDalnf

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.4ea1a42d62bbcce91284af6179e470a0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.4ea1a42d62bbcce91284af6179e470a0.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5088
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:336
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3892
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4880
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Resources\Themes\explorer.exe

    Filesize

    135KB

    MD5

    2a948096bcd4602498b89dabb080cfc5

    SHA1

    d2784bf2b066ebc5f0a2fc8f9492cdba1e6ad908

    SHA256

    cc5a6cd02e668c90ce4fc359f34cac8cbdaa2aafe7fe793fea5b0a8b03ba1efd

    SHA512

    c293c52a73b8cffd24b737dee9263f52721cbd49033d577e841ace964f9c435019744f9474c01b1fc63828e638d52e0a021ccd222e531dadf75a7b00e77d87a3

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    135KB

    MD5

    e116f7e98152c513ed6c221f38b5d00d

    SHA1

    38f50c8397dbf50bd3238f335aadcb72e914841f

    SHA256

    efa187599f6deb54ca4cd740a374937731e82e06221590abb24e34e557838152

    SHA512

    4d5b308c78e9cf0de322fd2f4f46cdc78c21a1f46b436e9ab45c9dbb44d973e31fd53171083eecb439e779e11c9adbce3eb713f7617c4d62dae8dc5c90bbddb4

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    135KB

    MD5

    e116f7e98152c513ed6c221f38b5d00d

    SHA1

    38f50c8397dbf50bd3238f335aadcb72e914841f

    SHA256

    efa187599f6deb54ca4cd740a374937731e82e06221590abb24e34e557838152

    SHA512

    4d5b308c78e9cf0de322fd2f4f46cdc78c21a1f46b436e9ab45c9dbb44d973e31fd53171083eecb439e779e11c9adbce3eb713f7617c4d62dae8dc5c90bbddb4

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    135KB

    MD5

    e116f7e98152c513ed6c221f38b5d00d

    SHA1

    38f50c8397dbf50bd3238f335aadcb72e914841f

    SHA256

    efa187599f6deb54ca4cd740a374937731e82e06221590abb24e34e557838152

    SHA512

    4d5b308c78e9cf0de322fd2f4f46cdc78c21a1f46b436e9ab45c9dbb44d973e31fd53171083eecb439e779e11c9adbce3eb713f7617c4d62dae8dc5c90bbddb4

  • C:\Windows\Resources\svchost.exe

    Filesize

    135KB

    MD5

    40fc53c54f1af6c7d682575cecb6c2b6

    SHA1

    9b98f7efa63d1c15232eb7e899c9f2caa00fe8fb

    SHA256

    900f7a39d8ea0a616a869224f9290e53bcf134ebdcb9051cccbe93f66dad8f41

    SHA512

    d72642c778ceb6f374b1664174c28bea0980fc8d9c4167f99e1a7fd8fd18d99fc1e2d8cecce7de58247449f6cbcfa5d5c36e335d323165ac67729ef46e58a980

  • \??\c:\windows\resources\spoolsv.exe

    Filesize

    135KB

    MD5

    e116f7e98152c513ed6c221f38b5d00d

    SHA1

    38f50c8397dbf50bd3238f335aadcb72e914841f

    SHA256

    efa187599f6deb54ca4cd740a374937731e82e06221590abb24e34e557838152

    SHA512

    4d5b308c78e9cf0de322fd2f4f46cdc78c21a1f46b436e9ab45c9dbb44d973e31fd53171083eecb439e779e11c9adbce3eb713f7617c4d62dae8dc5c90bbddb4

  • \??\c:\windows\resources\svchost.exe

    Filesize

    135KB

    MD5

    40fc53c54f1af6c7d682575cecb6c2b6

    SHA1

    9b98f7efa63d1c15232eb7e899c9f2caa00fe8fb

    SHA256

    900f7a39d8ea0a616a869224f9290e53bcf134ebdcb9051cccbe93f66dad8f41

    SHA512

    d72642c778ceb6f374b1664174c28bea0980fc8d9c4167f99e1a7fd8fd18d99fc1e2d8cecce7de58247449f6cbcfa5d5c36e335d323165ac67729ef46e58a980

  • \??\c:\windows\resources\themes\explorer.exe

    Filesize

    135KB

    MD5

    2a948096bcd4602498b89dabb080cfc5

    SHA1

    d2784bf2b066ebc5f0a2fc8f9492cdba1e6ad908

    SHA256

    cc5a6cd02e668c90ce4fc359f34cac8cbdaa2aafe7fe793fea5b0a8b03ba1efd

    SHA512

    c293c52a73b8cffd24b737dee9263f52721cbd49033d577e841ace964f9c435019744f9474c01b1fc63828e638d52e0a021ccd222e531dadf75a7b00e77d87a3

  • memory/336-36-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3892-30-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4320-35-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4880-37-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/5088-0-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/5088-31-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB