Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    16-06-2024 20:22

General

  • Target

    e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe

  • Size

    357KB

  • MD5

    bcf80fd61a963f4569a0f11ab02c6572

  • SHA1

    58194f80a70e08de6f074fc7843f414b7ed2de00

  • SHA256

    e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf

  • SHA512

    412ed65291397134cb39823fcb2569c75d875b9b86571646850f50b3262491d31ae0336e1ab1e3d2de88e30050f92b7f2ec30315c6df686d58d6bd39204eb734

  • SSDEEP

    6144:9VfjmN4shCYLrMTaN8wSEQKRzOALPmB3tl3HAO8fYkL1o:b7+4shC2N8wSEQKdjyBdRHy1o

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.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1284
      • C:\Users\Admin\AppData\Local\Temp\e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe
        "C:\Users\Admin\AppData\Local\Temp\e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2932
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a5F8E.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2928
          • C:\Users\Admin\AppData\Local\Temp\e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe
            "C:\Users\Admin\AppData\Local\Temp\e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe"
            4⤵
            • Executes dropped EXE
            • Writes to the Master Boot Record (MBR)
            PID:2652
        • 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:2120
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2656
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2620

      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

        baf165adaab6392d033d7f32319cabcb

        SHA1

        fa4b6413108c9b552b158ae614b63565509cece4

        SHA256

        c134d2515194f237193d125b905c679da1fe6baef94e7449c93c7ed387ba66e6

        SHA512

        0400ff9363143c589e5cf1172d6d4c971fd936de9e640d80e563b5e0136b772fa048497a0e6d79f51c02bf7b8ccda0d367180bf6cb91a35d9f21c320648c3a38

      • 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\$$a5F8E.bat

        Filesize

        722B

        MD5

        c702a9fd04d1218510900cd3492c4c3d

        SHA1

        97d2e0dd4bc91c4c91df2522a251ed3c9d98834c

        SHA256

        f3d9237f3050d868c5875d3c86a2e0e2362bdbdad6b157b25a8f0244bdc6d518

        SHA512

        194fd67cdc70295a763d3db73dc7641f891dc808f34175d96bc309f2edf8da7ac43a06867c9184c8f98631cb62626939197adc9dd46d849898e4def448caca21

      • C:\Users\Admin\AppData\Local\Temp\e84470ad42b86d9596c11534b883db3399c31a338a036d196cac2c0cbe17fabf.exe.exe

        Filesize

        331KB

        MD5

        25c40a58d31194af030d2856153fc490

        SHA1

        9361a68e4a5585c4f03026165d61f5f588515128

        SHA256

        ea31aeb14e8542ea87d01839d10b4b8933ea5444af49c2536051d979bc924168

        SHA512

        3b19c2642f235b3da033a84539339f0338a4fec0de5656e925bba7e7d505fb877d02b06c636b34bc45fd5e95271741eef6eceb91a14f8e684243bdbdeec12f32

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        c96a70874a471376780d70d7ad6b255a

        SHA1

        5b19ded6314cc223bac30dd4a1ee3041fa3cfa26

        SHA256

        1ae40b73fe2ab7e5f0282d11052dff7e4eff746da740d0dd75f7468638b0b7ef

        SHA512

        3a4d3a94f2535b3ce74bbd510119b0d99f37e888da05245d34482a5a76919b3e5c518a0445cf3098e9e443267250fbf339812d5315b70d34302a9131e5c00d88

      • F:\$RECYCLE.BIN\S-1-5-21-39690363-730359138-1046745555-1000\_desktop.ini

        Filesize

        9B

        MD5

        1884bfdeea71ff22db39c196f4447c9c

        SHA1

        3eafc7e6e17ba6ce7a087a3588fb1efb596da038

        SHA256

        163167bc5a01ad6b3ed4406c2a9a1baaf2c0ef4620ab7d5b39aeddf976ca776d

        SHA512

        b22124aa3a912462e6face7f71ad3dfec4b27dab16b2e20e3a0adc277f89f631ec889c91b185ac4b9b670933d881b8fd26c25d6f405e465aa8148cdbb7f7c3e2

      • memory/1284-29-0x00000000029C0000-0x00000000029C1000-memory.dmp

        Filesize

        4KB

      • memory/2120-90-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-31-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-38-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-44-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-96-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-136-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-1873-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2120-3333-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2932-16-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2932-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2932-17-0x00000000003A0000-0x00000000003D4000-memory.dmp

        Filesize

        208KB

      • memory/2932-12-0x00000000003A0000-0x00000000003D4000-memory.dmp

        Filesize

        208KB