Analysis

  • max time kernel
    115s
  • max time network
    119s
  • 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 09:15

General

  • Target

    2b7b7ff52de860b729fdf80c48091be0N.exe

  • Size

    134KB

  • MD5

    2b7b7ff52de860b729fdf80c48091be0

  • SHA1

    ea9926aff20c7767152a41cd9755009146aeae8f

  • SHA256

    b06d7cd428c59e8ed614c3bf2475cadb03e6d20299fca47fd545fe5f7993be37

  • SHA512

    2df0b1699abb5bea2a5ee8cd5712c6e4a9fb5e8ffb79283be529ffb1bbbe72eee4c82db89f35f5ec1d529285d87f25f9c7787235648f66b62f7eea7f7fa5e967

  • SSDEEP

    1536:sDfDbhERTatPLTH0NqNZg3mqKv6y0RrwFd1tSEsF27da6ZW72Foj/MqMabadwC7M:SiRTeH0NqAW6J6f1tqF6dngNmaZC7M

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 6 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b7b7ff52de860b729fdf80c48091be0N.exe
    "C:\Users\Admin\AppData\Local\Temp\2b7b7ff52de860b729fdf80c48091be0N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Users\Admin\AppData\Local\Temp\2b7b7ff52de860b729fdf80c48091be0N.exe
      C:\Users\Admin\AppData\Local\Temp\2b7b7ff52de860b729fdf80c48091be0N.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Users\Admin\AppData\Roaming\omsecor.exe
        C:\Users\Admin\AppData\Roaming\omsecor.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4996
        • C:\Users\Admin\AppData\Roaming\omsecor.exe
          C:\Users\Admin\AppData\Roaming\omsecor.exe
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:396
          • C:\Windows\SysWOW64\omsecor.exe
            C:\Windows\System32\omsecor.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3544
            • C:\Windows\SysWOW64\omsecor.exe
              C:\Windows\SysWOW64\omsecor.exe
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2916
              • C:\Users\Admin\AppData\Roaming\omsecor.exe
                C:\Users\Admin\AppData\Roaming\omsecor.exe
                7⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:4832
                • C:\Users\Admin\AppData\Roaming\omsecor.exe
                  C:\Users\Admin\AppData\Roaming\omsecor.exe
                  8⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:3540
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 260
                  8⤵
                  • Program crash
                  PID:3572
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 292
              6⤵
              • Program crash
              PID:4320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 288
          4⤵
          • Program crash
          PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 288
      2⤵
      • Program crash
      PID:712
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3924 -ip 3924
    1⤵
      PID:1136
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4996 -ip 4996
      1⤵
        PID:3236
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4412,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
        1⤵
          PID:220
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3544 -ip 3544
          1⤵
            PID:4964
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4832 -ip 4832
            1⤵
              PID:4672

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              134KB

              MD5

              17bf352316d57166426e6c46a8299147

              SHA1

              d46d352c2ddebe177e03c4ae2ad447d85b55eaa8

              SHA256

              d22c3f2e6e9893e9d56aaca4dbcbd688c2a6f170e9b7df60e73bde7fed4b7451

              SHA512

              1798d1df63727725de6937c5e82f410812d8ebaa08866c66571693aa0839fe11662debaf7f19b109f6c31d2d5aeb0d00825e9b36abce0269ce9419e645dbd035

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

              Filesize

              134KB

              MD5

              d59a13ea72f897a24726076db30846c7

              SHA1

              0a022af01e295d08a70ecdf5d5b750d3ebddcc83

              SHA256

              34d79aa25375ad114221a9943231552ac55b3efd3227dede0ca13e866762d264

              SHA512

              ac058deeff0f3cf0ad8bffdc5ef0e186697c1d86730edec624f11dba8429a084b19f46209e63e9e24f762bd8b6cd178fd95e264b02d65efb85113513f1339977

            • C:\Windows\SysWOW64\omsecor.exe

              Filesize

              134KB

              MD5

              7718d9ae4022885dcc17c3f4e44ae070

              SHA1

              fc893f74a43a5985ddb4aa6885bdfe874da09509

              SHA256

              f68ab85daa6c301e4cf65fba57e2e33a06523458d6cb91eee47bebecd7465a93

              SHA512

              c181df9d8d5d12df5889312fd8f3f16764a7fc530d7bfafb6381dd53d7d5129c3913b6a5382ec21f42a3ef318f02751dc438bb69e64f19e977267deaf370d574

            • memory/396-17-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-27-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-24-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-23-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-14-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-15-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/396-20-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/2916-37-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/2916-35-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/2916-34-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/3540-47-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/3540-49-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/3540-46-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/3544-48-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3544-29-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3924-16-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3924-0-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4200-3-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/4200-1-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/4200-2-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/4200-5-0x0000000000400000-0x0000000000429000-memory.dmp

              Filesize

              164KB

            • memory/4832-41-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4996-11-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB