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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 16:13

General

  • Target

    31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe

  • Size

    381KB

  • MD5

    c4c8cb796091adbbae269b05094e7332

  • SHA1

    7cbbc98f889ade6945bc46fcf904999e66c8f308

  • SHA256

    31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc

  • SHA512

    1ffcaa3cef4bde4734dc1ff454bbba78e07989e07f9a699dffc694f89d819632c736fd082212cf855813e0b0342e524494e581076fcbcd4b1182140c696605c7

  • SSDEEP

    6144:MVfjmN+6x0Joevr9BIfamYnwA92lGh5qyM4mF5sAOj/dxCzHa3NrJQe:O7++A02evr/IfamWkCM4OSdxma3Nrj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 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 20 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3344
      • C:\Users\Admin\AppData\Local\Temp\31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe
        "C:\Users\Admin\AppData\Local\Temp\31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:960
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3614.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1772
          • C:\Users\Admin\AppData\Local\Temp\31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe
            "C:\Users\Admin\AppData\Local\Temp\31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe"
            4⤵
            • Executes dropped EXE
            PID:4224
        • 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:1480
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4892
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2236

      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

        717bbf070b0486e85b4c31139c219c7e

        SHA1

        0e361c843f2a2586f6b80fcec5363f478ef9b251

        SHA256

        25b83b39261bb702ed450e78d6d76c653cc1f6c12d70065be96a83df057a7156

        SHA512

        2926f4012914e741b8653e3f9e2c7c4d2162b04ac97479709bd6126c5587755f8b71bb5b8d0df85580557c1aed475c5f4acf365c2f5e0026b4f448ecbd473c39

      • C:\Program Files\7-Zip\7z.exe

        Filesize

        570KB

        MD5

        8e459e5220458b5b0fb908befb380c1e

        SHA1

        5e028ed6415024e4892a1b477f679f6dcf9d3998

        SHA256

        0febdadb41baf0e4a14a5229dd020af8abf53b662fd521d25fa26649014af985

        SHA512

        eb6a3d808b1d44d9e8b770f514b472101136eb5fa286da27548a072265200ca767688809eccd09ea9584e2c37a07d9081789bcd6e1c278163b2f24908e17f102

      • C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe

        Filesize

        481KB

        MD5

        1db5b390daa2d070657fbdb4f5d2cc55

        SHA1

        77e633e49df484b827080753514cc376749b0ceb

        SHA256

        d5fbaf5c0d8e313d4dad23b28cac4256c5dbed6ab3b0d797e2971f30c5e095ad

        SHA512

        68aa0152f5aae79a146c1813915fd16ec5454b285bd1781370923f97d6c147d53684192f7f4161e5c1a340959ec432ecaac127b0abe7d08f70c387e08ee4f617

      • C:\Users\Admin\AppData\Local\Temp\$$a3614.bat

        Filesize

        722B

        MD5

        9321159710e041c44faae8eb4cb21aa0

        SHA1

        e8803ae676380ec31470ae6455055ea39a5fefa8

        SHA256

        c7db0dd62beefa41c0e87dfed83e6aa03da846fe1d4cc3313b5ce0f42262c208

        SHA512

        5336e10ed0958bf482e4e935b7b8e8d16cf5404ffd7813c346895cce649dfc7a2386ee752a0ee71427a5521a4ad1e0026aad877200faf5b0e0bfb200be451cf5

      • C:\Users\Admin\AppData\Local\Temp\31d3d7d119de686232e9d19128b2ff3d67e2259b131c11525b22787b197db9dc.exe.exe

        Filesize

        354KB

        MD5

        e552401ea07d0e12ca80e294a78819cd

        SHA1

        36d05c8c18cc9c073d6488a4cf63ba7be8e61c55

        SHA256

        d8dfc83a5cf4d0567437ba971e3b712631c85666767c900f62695abca447f728

        SHA512

        c75b4cda661b14e79dd20add36bbf8584b6bbc4e9068f7d613765bf5d633c50d18d71a1954be896b4244de17c784335b0241dcc368bd00877dc86d7eed8548d2

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        bbe25ec5fb983e881cda55b0a827d9b9

        SHA1

        448be06c535598b29e10e7feec613612f0030121

        SHA256

        0b9164da17c3f89558fac9e2a2f5362619ea58990822d6171ffa43eb8b579c7a

        SHA512

        1fea6f1ee33645476fbf8e7cbf21dfb06b113aea208f238fa274f43d7a54af87a6966b0bed9ea10543613732656fec5535ac4e973d724d99f6016a47410757ef

      • F:\$RECYCLE.BIN\S-1-5-21-399997616-3400990511-967324271-1000\_desktop.ini

        Filesize

        8B

        MD5

        eb3fe7085aac4986a5db69d6c382011f

        SHA1

        19c0d93bf576dc3bcf232628428d6218f91767a0

        SHA256

        41f6ad8112406e684ecf32a535c20fbac2db8d577e00b14197146b599a4b6ab2

        SHA512

        26ed6484407c76b27987c2ed0e5ec2522ea6053de299c486841195690c536d72d0569fb291a9b9a91ce74fa22f4c37c43b491f4d0ff00afb8771bd36a7dcf508

      • memory/960-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/960-9-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-37-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-33-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-41-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-26-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-1008-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-1175-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-2063-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-12-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-4740-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1480-19-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB