Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 23:08

General

  • Target

    c45709d0c349e754ae8e9dd1ed10d94a.exe

  • Size

    54KB

  • MD5

    c45709d0c349e754ae8e9dd1ed10d94a

  • SHA1

    65d3f0255aad3a0ac8659ed2ed85313f68de7547

  • SHA256

    7bb95f4481a64807202b57aef0e11503006537e7d928b2a633661b591aca0875

  • SHA512

    f0f4147bc7541dd380e60a50bada93ed902f2f3c6aeee1c6b0e198d5062f8b538afc701c5e1ac1f5901d5f92e40c5d13f3db763ab3628256bb593926277269ab

  • SSDEEP

    768:Oe3PFaDVyOQgljLDKRJyM3BmsHzSB4us/wJJapg4RoSMZeUZB/4sjQtAIOqqTRPU:V3cpyORJLuB4P4AJJv4Romu/++Ek1U7

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 9 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c45709d0c349e754ae8e9dd1ed10d94a.exe
    "C:\Users\Admin\AppData\Local\Temp\c45709d0c349e754ae8e9dd1ed10d94a.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\Internat Explorer" +s
      2⤵
      • Drops file in Program Files directory
      • Views/modifies file attributes
      PID:2868
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat" "
      2⤵
      • Deletes itself
      PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\temp_tmp.bat

    Filesize

    186B

    MD5

    c43adb1caf8346189194d6e83970aeee

    SHA1

    36c249b42b7162aac269710cdb6a5b2b28632f95

    SHA256

    10d4ac859552819968e1da5a336bac7245e1fdf3e3a1c71eaaceb96ed5c4c132

    SHA512

    708d89989d849d0fedbff49002f4155b58a0fd8c4ea6b4a8924b28c5c479fa3402e49f8e56d9c68bec434047d6543095710012fca573f3c5ff59af85debb2431

  • \Users\Admin\AppData\Local\Temp\nsy191E.tmp\System.dll

    Filesize

    11KB

    MD5

    00a0194c20ee912257df53bfe258ee4a

    SHA1

    d7b4e319bc5119024690dc8230b9cc919b1b86b2

    SHA256

    dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

    SHA512

    3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667