Analysis

  • max time kernel
    187s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 03:34

General

  • Target

    769450e7d371b2de969a03992d341df06eb113c3e8827c40fbe085451f4cfd70.exe

  • Size

    48KB

  • MD5

    fff8d991fe97984fb1710ba5bcfb2b16

  • SHA1

    396adbb7e6228b266daa118cea9bd337f5230e44

  • SHA256

    769450e7d371b2de969a03992d341df06eb113c3e8827c40fbe085451f4cfd70

  • SHA512

    5f44e82ab6a66d4eb60ea2e525f7285ffd6ae1e6e66ea7668f9237e65b12d7ba1c45c192aafb3d11afb9f467849635eb73cdb036523b604b107059981df49ee4

  • SSDEEP

    768:ZeNEhmSglfzBv+6wH9H7MfygXaDMFQXD7e:Zeamjfx6NNDsQXD7

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 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 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\769450e7d371b2de969a03992d341df06eb113c3e8827c40fbe085451f4cfd70.exe
    "C:\Users\Admin\AppData\Local\Temp\769450e7d371b2de969a03992d341df06eb113c3e8827c40fbe085451f4cfd70.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Users\Admin\siuon.exe
      "C:\Users\Admin\siuon.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1816

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\siuon.exe

    Filesize

    48KB

    MD5

    dbe76266b3cdee600b7f2d444be5f6bf

    SHA1

    80772ec34b3bd430d3a03b1daa8a233029a8ffdf

    SHA256

    7713a7015d4d3d47f02fce86b76e380496f39613cfbd359d50b6dcc1ba046373

    SHA512

    6f8adaed7044005e6ae72951442a876e9841791aa0fd9767d0cedf9306f7ef90eabed138d3f5119cafe9928a593f84c1fe425a7a2a9513d08fdd22f8f4a03f51

  • C:\Users\Admin\siuon.exe

    Filesize

    48KB

    MD5

    dbe76266b3cdee600b7f2d444be5f6bf

    SHA1

    80772ec34b3bd430d3a03b1daa8a233029a8ffdf

    SHA256

    7713a7015d4d3d47f02fce86b76e380496f39613cfbd359d50b6dcc1ba046373

    SHA512

    6f8adaed7044005e6ae72951442a876e9841791aa0fd9767d0cedf9306f7ef90eabed138d3f5119cafe9928a593f84c1fe425a7a2a9513d08fdd22f8f4a03f51

  • \Users\Admin\siuon.exe

    Filesize

    48KB

    MD5

    dbe76266b3cdee600b7f2d444be5f6bf

    SHA1

    80772ec34b3bd430d3a03b1daa8a233029a8ffdf

    SHA256

    7713a7015d4d3d47f02fce86b76e380496f39613cfbd359d50b6dcc1ba046373

    SHA512

    6f8adaed7044005e6ae72951442a876e9841791aa0fd9767d0cedf9306f7ef90eabed138d3f5119cafe9928a593f84c1fe425a7a2a9513d08fdd22f8f4a03f51

  • \Users\Admin\siuon.exe

    Filesize

    48KB

    MD5

    dbe76266b3cdee600b7f2d444be5f6bf

    SHA1

    80772ec34b3bd430d3a03b1daa8a233029a8ffdf

    SHA256

    7713a7015d4d3d47f02fce86b76e380496f39613cfbd359d50b6dcc1ba046373

    SHA512

    6f8adaed7044005e6ae72951442a876e9841791aa0fd9767d0cedf9306f7ef90eabed138d3f5119cafe9928a593f84c1fe425a7a2a9513d08fdd22f8f4a03f51

  • memory/972-56-0x0000000075D01000-0x0000000075D03000-memory.dmp

    Filesize

    8KB