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Analysis

  • max time kernel
    255s
  • max time network
    292s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2023, 18:04

General

  • Target

    NEAS.87e7d4cb4a0d4e2523e03bc159bef7d0.exe

  • Size

    346KB

  • MD5

    87e7d4cb4a0d4e2523e03bc159bef7d0

  • SHA1

    357d1149fe49928e2868238b8cf9598c557a5a7b

  • SHA256

    75161078d75acead13d1a4236df271476c17a7be656cbc536a996cdddc69db5c

  • SHA512

    23279a35049fa7a4dea72f1de343a42f599d0a9e1d02d475548dd8f53aa5ac77ec890d60596b958215150bd080632ece4bef9fe3bde0b546dad5b1d3d2079a55

  • SSDEEP

    6144:8uIlWqB+ihabs7Ch9KwyF5LeLodp2D1Mmakda0qLqIYhuIlWqB+W:X6Wq4aaE6KwyF5L0Y2D1PqLb6Wq4W

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.87e7d4cb4a0d4e2523e03bc159bef7d0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.87e7d4cb4a0d4e2523e03bc159bef7d0.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\svhost.exe
      C:\Windows\svhost.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Documents and Settings.exe

    Filesize

    346KB

    MD5

    4640c73f565b34210e378d0e7e04dda4

    SHA1

    4d06d3dd02c2fc9f6a2e37a77c2e834a9e2780e4

    SHA256

    7271544bbc55a6afbe5d0085599cadb5027507de60ec6040cb9ccd65503571d5

    SHA512

    c7953155d78ccf5adbeec72f6e5f8ea172a775bfa71a6df101ede16eb28362ced7f37036dc40d52e7befd50bae208d8e1d56f6c58ca5bbe29ca9798eca6548e2

  • C:\Windows\Driver.db

    Filesize

    82B

    MD5

    c2d2dc50dca8a2bfdc8e2d59dfa5796d

    SHA1

    7a6150fc53244e28d1bcea437c0c9d276c41ccad

    SHA256

    b2d38b3f122cfcf3cecabf0dfe2ab9c4182416d6961ae43f1eebee489cf3c960

    SHA512

    6cfdd08729de9ee9d1f5d8fcd859144d32ddc0a9e7074202a7d03d3795bdf0027a074a6aa54f451d4166024c134b27c55c7142170e64d979d86c13801f937ce4

  • C:\Windows\svhost.exe

    Filesize

    346KB

    MD5

    6f0e98d1ab8d3d760241fe095529c1e0

    SHA1

    ab05fd26244b7cbeb2831f3eba5cc4e598c5a44b

    SHA256

    3470d796dbaff469de73fd3368f8f99e1281567379ccb5bd32582c36e4c642fc

    SHA512

    0e0354030b28a6006981a5ca0d75fdc650b6f3579b14d1e26c9994762724b3cb9f555b5994282b31f2d4fde517ff7829ca05b1d41ef4a4c690dc51c3b5213a6d

  • C:\Windows\svhost.exe

    Filesize

    346KB

    MD5

    6f0e98d1ab8d3d760241fe095529c1e0

    SHA1

    ab05fd26244b7cbeb2831f3eba5cc4e598c5a44b

    SHA256

    3470d796dbaff469de73fd3368f8f99e1281567379ccb5bd32582c36e4c642fc

    SHA512

    0e0354030b28a6006981a5ca0d75fdc650b6f3579b14d1e26c9994762724b3cb9f555b5994282b31f2d4fde517ff7829ca05b1d41ef4a4c690dc51c3b5213a6d

  • memory/2616-5-0x0000000000400000-0x0000000000523000-memory.dmp

    Filesize

    1.1MB

  • memory/2616-229-0x0000000000400000-0x0000000000523000-memory.dmp

    Filesize

    1.1MB

  • memory/2640-0-0x0000000000400000-0x0000000000523000-memory.dmp

    Filesize

    1.1MB

  • memory/2640-120-0x0000000000400000-0x0000000000523000-memory.dmp

    Filesize

    1.1MB

  • memory/2640-121-0x0000000003A80000-0x0000000003BA3000-memory.dmp

    Filesize

    1.1MB