Windows 7 deprecation

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Analysis

  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 06:15

General

  • Target

    0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe

  • Size

    926KB

  • MD5

    1a3a325061c8d7bc7efc9e3709c0120d

  • SHA1

    e9f0edf40d6ce7705c713e82e637816afcf46dce

  • SHA256

    0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d

  • SHA512

    5ed1f79609a72d970f273292c096f8c18c9051b228412b091caa5675f981256512bbc4138393c44716bf5dc575bbbfce4c6dec89ebddcb3a44945bde72724c9b

  • SSDEEP

    12288:U7+lIzIM4/h0cRjG/kvMTheu8WDY3HlHgUoSPL/W/ZlW+V1jrpduBgVXceR5+n1p:U7sX/h0cEnh8WD8lHvWjW+DXp6rwPu9Z

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe
        "C:\Users\Admin\AppData\Local\Temp\0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a11BC.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2008
          • C:\Users\Admin\AppData\Local\Temp\0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe
            "C:\Users\Admin\AppData\Local\Temp\0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe"
            4⤵
            • Executes dropped EXE
            PID:2144
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2228
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2640
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2680

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

        Filesize

        251KB

        MD5

        69e0ff51b5c71d80e8789788f4c0def5

        SHA1

        6a167207c2bcfc3af9a3db078cab336c23bff679

        SHA256

        0c795a07deb16a871947caa3fee6505f7645fb2df3b3f33b532b4dc9d4cbe077

        SHA512

        0c9ae6ef006ce63ab0d3d853ffbb8e5bb33bad1367863e07a0a92750d2282dda5f80590883964751260e727bc94f56198e0a24ceb81e689307dda15741d334fa

      • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

        Filesize

        471KB

        MD5

        4cfdb20b04aa239d6f9e83084d5d0a77

        SHA1

        f22863e04cc1fd4435f785993ede165bd8245ac6

        SHA256

        30ed17ca6ae530e8bf002bcef6048f94dba4b3b10252308147031f5c86ace1b9

        SHA512

        35b4c2f68a7caa45f2bb14b168947e06831f358e191478a6659b49f30ca6f538dc910fe6067448d5d8af4cb8558825d70f94d4bd67709aee414b2be37d49be86

      • C:\Users\Admin\AppData\Local\Temp\$$a11BC.bat

        Filesize

        722B

        MD5

        fd7afb754ba3914f8291627429e1de60

        SHA1

        c544f601c0f1e822c07fafdd4ef84a9b6934e76b

        SHA256

        e186ef62016db91df98e9f61fb106bec4b1c09df0ba8fa5a748fd6fabd88e8ef

        SHA512

        4f70276f17322498457c6e99c0e68669d340043fe7cd61a21666089c7ca6960644e34597994b634a695008592d278f6cdda350a5084f45c070406df0489564fb

      • C:\Users\Admin\AppData\Local\Temp\0443b28d1096b9ee3e03aa78d74e531cfffc9842770127532dd8d1b4678b8b9d.exe.exe

        Filesize

        899KB

        MD5

        2cb5bc00421e0a0193169be2009d0022

        SHA1

        9a2754b0c2906dd64c1b2553246a232dc7c09bc1

        SHA256

        f5591ec5909f8cd792c709a3772bdd4441243e673b703c4395d5755dbb638c76

        SHA512

        35e1b408fe0c2f9b7dfc1e51ec9fe15029e53dd88a714e26c19f46711064e000f9bc44c1aef8adad3d647cd58bd5270202a2efd7f7fe30b6d1e1af028bae1cad

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        eae720ddb96259ba9cc84160c4e6db6b

        SHA1

        6e6aa6b84edda1752d2720be3269e5df9a7dbc91

        SHA256

        1e3b3150146e34c2742aa0816cab9a3720ecb9f8e6ad85db6db8624ca6a57760

        SHA512

        a386e5ebbe057131bfcbafcd14f2efe8cb486238394819e681feb1dc7fb5695df660cb2e6dc1ce3a944b1eabc365d91994ed1f137bde0a41d8a4c882428e7610

      • F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\_desktop.ini

        Filesize

        8B

        MD5

        d970a2bfcaa076939c06270d1a48dec8

        SHA1

        7a558f4d64c3e98bcfd2af83f28e6fbd207a39e1

        SHA256

        bdc6872f9a0a011a670907f0fedad9b88e283c5af545cf9f6bd73c3709967d44

        SHA512

        ea4c16930628455852ce343f8ae248b6df869b8da10b10928ebb802129f73d9761971811de317c7d3121b815340027782ec15d385d1d2d7df8fd0a46b62974c2

      • memory/1208-29-0x0000000002F10000-0x0000000002F11000-memory.dmp

        Filesize

        4KB

      • memory/1512-12-0x00000000002B0000-0x00000000002E4000-memory.dmp

        Filesize

        208KB

      • memory/1512-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1512-17-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-31-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-38-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-44-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-90-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-96-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-628-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-1850-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-2338-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2228-3310-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB