Windows 7 deprecation

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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2024, 22:10

General

  • Target

    611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe

  • Size

    72KB

  • MD5

    6b4271b45f74c069dd14b56f15ee6ca8

  • SHA1

    71ad403e4380bee8bc204eae9876d933012b601b

  • SHA256

    611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1

  • SHA512

    d7ffbdd8f4a096dfed4cbc68c173a2b0ae7653de41f127fddb2c9b420b2764f7463d2b24528bf55c8c17801151d72c50e4053ea436b40d1638f1535c0887399c

  • SSDEEP

    1536:NDj2d6rnJbJnJBSX1nV1b1N1Il1k1YFI1x1J1MuEqx517Q/1T1Jzct01Nsqnl1Ru:FlnnJBSX1nV1b1N1Il1k1YFI1x1J1MuF

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe
    "C:\Users\Admin\AppData\Local\Temp\611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      PID:2940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    72KB

    MD5

    686972107a58563a40146f53e464e9a7

    SHA1

    c8661619502f20e2ffba6a51af07888784281eb0

    SHA256

    9d5b390ef9cb7beb7c8ff64353a0a86bdbb5f20e50684195eea7167872da1d57

    SHA512

    89e372f91e60bf22a17bc491b268cec5ef2b5361984f38b6b98a32b9df8be5786c5bfac8a20a2961e11c3b0bcbcac441b462064c468e619eb9170f23b2f9214e

  • memory/1888-1-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1888-2-0x0000000000020000-0x000000000002C000-memory.dmp

    Filesize

    48KB

  • memory/2940-9-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2940-13-0x0000000010000000-0x0000000010005000-memory.dmp

    Filesize

    20KB

  • memory/2940-14-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB