Analysis

  • max time kernel
    151s
  • max time network
    70s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 22:07

General

  • Target

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e.exe

  • Size

    80KB

  • MD5

    789b2d019ce1e089f23b34f9b93dd565

  • SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

  • SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

  • SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • SSDEEP

    1536:Md11RDEgq46nSfMVW13jtqIcaQ3MEc38KOngYpZQjwOf4BlEu7toePZeQ:EX5fMd8zAn7t+4BlEu7tbP4Q

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e.exe
    "C:\Users\Admin\AppData\Local\Temp\5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e.exe
      72
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Loads dropped DLL
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Users\Admin\laaukoy.exe
        "C:\Users\Admin\laaukoy.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1572
        • C:\Users\Admin\laaukoy.exe
          72
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\laaukoy.exe

    Filesize

    80KB

    MD5

    789b2d019ce1e089f23b34f9b93dd565

    SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

    SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

    SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • C:\Users\Admin\laaukoy.exe

    Filesize

    80KB

    MD5

    789b2d019ce1e089f23b34f9b93dd565

    SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

    SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

    SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • C:\Users\Admin\laaukoy.exe

    Filesize

    80KB

    MD5

    789b2d019ce1e089f23b34f9b93dd565

    SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

    SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

    SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • \Users\Admin\laaukoy.exe

    Filesize

    80KB

    MD5

    789b2d019ce1e089f23b34f9b93dd565

    SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

    SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

    SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • \Users\Admin\laaukoy.exe

    Filesize

    80KB

    MD5

    789b2d019ce1e089f23b34f9b93dd565

    SHA1

    3b3882a45eb17c14a40c604af3ee72587f3661e2

    SHA256

    5e5791c3f9b8d158ea925e90510631dd4afc3d850d7b1c87b22f8cb30f69731e

    SHA512

    9017ffffea9c77280b680170d94f77238f1d7b6fef5aa1ffe156f5998d879335be0a7baff85675d3d98a6936e2543b156075a88496dd51fc028ab28495883a3d

  • memory/1236-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1236-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1368-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1368-63-0x0000000075C51000-0x0000000075C53000-memory.dmp

    Filesize

    8KB

  • memory/1368-56-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1368-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1368-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB