Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 10:25

General

  • Target

    decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe

  • Size

    2.1MB

  • MD5

    bdd5b588b161a51dd54a3e9f4c933310

  • SHA1

    e42907ce9f128b1901a370e814754574ebc3faa2

  • SHA256

    decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e

  • SHA512

    30f9c349c28d263f0041f3e19ba230fe96a60fba87c6664eddfd93ce67a593c9f87554774004e93e01018cf99d8fa32e8443848850cb78247996a61913777852

  • SSDEEP

    49152:G7UitFvogMYoqeKa8KJvi2ykvmdNpOXW7mX5XPjkZB9qX6:dinoVqeKiA2qdCXWG5XPjkZBoX6

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 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
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1200
      • C:\Users\Admin\AppData\Local\Temp\decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe
        "C:\Users\Admin\AppData\Local\Temp\decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2832
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a311E.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2788
          • C:\Users\Admin\AppData\Local\Temp\decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe
            "C:\Users\Admin\AppData\Local\Temp\decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: GetForegroundWindowSpam
            PID:2644
        • 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:2772
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2632
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2512

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        251KB

        MD5

        5eba4680d4eebf14625ab65f5dd70cef

        SHA1

        22651f51e8d06d14411add1ba9a03444a713d6ae

        SHA256

        993a84268386b7f0968ae7bb9ec37d797d3b3e1babc0e03eb93ede3525049382

        SHA512

        e48cd696c9563117e1d78337992aa923eba7f819ad327c348d1ce753617f9e43114ed6e64937d274383fe66d56e775edad03e05c7e686981152b662926fc32be

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

        Filesize

        471KB

        MD5

        c6c8fde27f649c91ddaab8cb9ca344a6

        SHA1

        5e4865aec432a18107182f47edda176e8c566152

        SHA256

        32c3fed53bfc1d890e9bd1d771fdc7e2c81480e03f1425bce07b4045a192d100

        SHA512

        a8df7d1e852d871d7f16bae10c4ff049359583da88cc85a039f0298525839040d5363ce5ef4cbdb92a12a25785f73df83cf0df07752b78e6e6444f32160a2155

      • C:\Users\Admin\AppData\Local\Temp\$$a311E.bat

        Filesize

        722B

        MD5

        bfc2fe9aa33106bb5ffdfa3ca4f47826

        SHA1

        62f6b8aba7b585211706e063a93f7cd75399f770

        SHA256

        d2dfd72d68f345fb50787de1173451315215fd047d2e09d2e8bc11cfa778add2

        SHA512

        a5a57a4f5e63a422dd53863d3beed7a8c9ba4355d46737ebf41d1ce97ef7667dd93dce2b051b4ba44f9ee5fe4b3ceaab1e315acab06044c1b93a0843ef7d2c1a

      • C:\Users\Admin\AppData\Local\Temp\decf3fcdea2cc7b8a499606fe0c0608a32daf542b8c9dece8da8a85ebcd9a68e.exe.exe

        Filesize

        2.0MB

        MD5

        a69ea69919aeae2d563f23bc6c97f179

        SHA1

        1a1f9d631573ec52e438a0730bd3b09ae8caebe2

        SHA256

        4b14a8f3096ed929d94756a8003a2d5c75e41268e02453214410e2d6503c86f6

        SHA512

        ddadc2df257f33eeaa3ec616f9eb3b20f86740d00ed946d338524db16bfc46c3b8a30ae1147a614a874cd4ddd5fd54cf175932f2acc9ec61a25c367d6fe1352d

      • C:\Users\Admin\AppData\Local\Temp\nst3381.tmp\ioSpecial.ini

        Filesize

        728B

        MD5

        137c4bb597bb87191881b139a28d2515

        SHA1

        798430924b72b7df578e3e4b73f988fd255fe0dc

        SHA256

        448f286e1b47e913d09311c39431e2817f94153226adc2f12294484ecdf7d4f9

        SHA512

        e5e95c2a688c58f6500cedc7e4590767309dd6b912d255b723ba5f42c6e511882963b5d5cc7778a6744c7224a060d2a5e8eaa549c62f5235ee0b0bb4a69b0324

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        acc80e286f75b7b56c346fd4f2be6dd3

        SHA1

        b30f317400d4d51d47844f4e243e541179aca02a

        SHA256

        bea45eb5ffc6d0e209f96a3a84e4d78770af77041469ea916a42cadab3f9ff9e

        SHA512

        7ba7b60bba498579562d3c2bdc47fb09888212434a86308cc05478084f0b96d889de00627bf6fc47e2088b49d1d9ccea58c2b4cfbfea24b09a8e4c9000097a4d

      • F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\_desktop.ini

        Filesize

        8B

        MD5

        d970a2bfcaa076939c06270d1a48dec8

        SHA1

        7a558f4d64c3e98bcfd2af83f28e6fbd207a39e1

        SHA256

        bdc6872f9a0a011a670907f0fedad9b88e283c5af545cf9f6bd73c3709967d44

        SHA512

        ea4c16930628455852ce343f8ae248b6df869b8da10b10928ebb802129f73d9761971811de317c7d3121b815340027782ec15d385d1d2d7df8fd0a46b62974c2

      • \Users\Admin\AppData\Local\Temp\nst3381.tmp\InstallOptions.dll

        Filesize

        14KB

        MD5

        107737e3282fefd85684f2fa3df6d1c3

        SHA1

        3befbcae116a644ae28cebdc1d7dfe6be5c8ca5f

        SHA256

        21042be362d4073053bffcc90511b3ecf77902243525b56bb159581b5ece43a0

        SHA512

        439ac2f3066902e08d63dc3061f55063089857e765feb29fe47ba5819a9bebdff3fe2fe55fc8bfcfddb729d340f006ee95b5aa4422d712f9dcc07cc02ec410b4

      • \Users\Admin\AppData\Local\Temp\nst3381.tmp\LangDLL.dll

        Filesize

        5KB

        MD5

        9530f18694fca38d744280f34ae08d41

        SHA1

        00aaedf6e5dab916dc9f1281cae0bb4f207dbd8b

        SHA256

        88d3bebbc9b98f393be97d8d984696ab860e5ad59ea85036c8276e91ecf9eda0

        SHA512

        e7682d601e585b2fd6a47d4c7a3895e8bb3c2c1ac80aaae78ee9ff896b37ed91cb4371ba8e8631e176ed8486ee00574f62688c460aa6173b669f9c853370ff9e

      • memory/1200-39-0x0000000002F80000-0x0000000002F81000-memory.dmp

        Filesize

        4KB

      • memory/2772-131-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-118-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-125-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-177-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-183-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-293-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-1937-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-3397-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2772-20-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2832-16-0x00000000002A0000-0x00000000002D4000-memory.dmp

        Filesize

        208KB

      • memory/2832-17-0x00000000002A0000-0x00000000002D4000-memory.dmp

        Filesize

        208KB

      • memory/2832-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2832-18-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB