Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 14:57

General

  • Target

    75e4864ae7901aef12051eef9c215110N.exe

  • Size

    35KB

  • MD5

    75e4864ae7901aef12051eef9c215110

  • SHA1

    49be1c214e11af091e3a01d41c873609bfb3e5d0

  • SHA256

    97b5ab3137ee3b3bf7b8c840ec89487951e4ebb86454a7aabd0605f301e322d1

  • SHA512

    3544c94d593d61b7f87b4abde5f3cbadc54bf27a68acb88e509ed2829ca1a982fbf0afd7e76a8751c972fdf7a3b9e9ce7a0387e4bc1faf9cbc4e2f262f520a29

  • SSDEEP

    768:+6vjVmakOElpmAsUA7DJHrhto2OsgwAPTUrpiEe7HpB:F8Z0kA7FHlO2OwOTUtKjpB

Malware Config

Extracted

Family

neconyd

C2

http://ow5dirasuek.com/

http://mkkuei4kdsz.com/

http://lousta.net/

Signatures

  • Neconyd

    Neconyd is a trojan written in C++.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 12 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75e4864ae7901aef12051eef9c215110N.exe
    "C:\Users\Admin\AppData\Local\Temp\75e4864ae7901aef12051eef9c215110N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4968
    • C:\Users\Admin\AppData\Roaming\omsecor.exe
      C:\Users\Admin\AppData\Roaming\omsecor.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:552
      • C:\Windows\SysWOW64\omsecor.exe
        C:\Windows\System32\omsecor.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        PID:4456

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\omsecor.exe

    Filesize

    35KB

    MD5

    dace5c7936c67d52267a2da8a90fb18d

    SHA1

    c36e1ae6a38169bdbf8f34f9500cfd2ea45cf1cd

    SHA256

    84313a73921ea31fd0f27f322a60e7c961a776a62c8e241a4c7b697655e3e801

    SHA512

    1ce8b02454cde8dfc4abd6fe3a52367a60f6abee5cb2e6be8ece818c28a0529a83620a9209b2f415571ec75ce248be0d081555aee3b43b6579fb32f5a4523f55

  • C:\Windows\SysWOW64\omsecor.exe

    Filesize

    35KB

    MD5

    0fe651b60d38d1566ae73fbb92b92445

    SHA1

    6d3ce9d39860d54acbbe5c00c18ed08796300a37

    SHA256

    3b94a00e5393036f324fcfb62eb5c3f2820169ff8b376960bec52a06677e1106

    SHA512

    fb92f1cbe77e5b90b2b839f0d4a69bacf525d02373825f7016cc51a02893e0e5e88e44a1914762cccb3e7e2f447a880fd3b4e784c740521000a3443829722b7d

  • memory/552-4-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/552-8-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/552-11-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/552-14-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/552-15-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/552-20-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4456-19-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4456-22-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4968-0-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4968-6-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB