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Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2023, 18:43

General

  • Target

    91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe

  • Size

    101KB

  • MD5

    d4e42d2a1f81742c9aa3d5efc9d0f76b

  • SHA1

    39e4e462aead3ef720695cb591037431b7fca5f8

  • SHA256

    91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39

  • SHA512

    58aab2c90edc7cd3bc603fb01d9c7c3d70d520e955625322ac8274ba86dd03b3a0a09a54f70f2859522aa72e3830302829cb2e156b20f908cdf9f86731a6fe53

  • SSDEEP

    3072:cNftffjmNoxPGvE4pL4zv2NL6sRe5lxe:cdVfjmNUGvEaL4z6Re5S

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:3180
      • C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe
        "C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:3544
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aB100.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3496
          • C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe
            "C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe"
            4⤵
            • Executes dropped EXE
            PID:3716
        • 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:4864
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2960
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2888

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files\7-Zip\7z.exe

        Filesize

        484KB

        MD5

        1c329a7f67b9d88b199e6a5bdf287198

        SHA1

        08009c4216ac42d5735ef5da01f412440bf2fd88

        SHA256

        0aa973d584c6a8488d9a735464e3757ffde602b2736b4bed433f7dd6e7d16836

        SHA512

        56b2c5c7a5a8582f12668648db2e98cb6e2de0a164dbcb9a2f61d39638e8aa7c6968b26d97d3107dd19bd0335e984597634b1c39a04643ee12fc7b9b3aab4a6b

      • C:\Users\Admin\AppData\Local\Temp\$$aB100.bat

        Filesize

        722B

        MD5

        73e85fb82bd45061ad81abc1ee0175ab

        SHA1

        f4eec0bffb6b499116fd00ab9db96daa3d6a5bb0

        SHA256

        3735b09a83c3199d2a72151b99b3aa733939f8b15925d4930752da3a16ca12ba

        SHA512

        1d2cc0db40659fcc1f4fe60477550bac6d60cf6148d88dde6f4f0dc26fc800559ab76d96a60ccfdad98effe4d5b129456f4529d2faf70a743342a04cd43f4f22

      • C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe

        Filesize

        75KB

        MD5

        a7851a05e83f42f741a804320c485083

        SHA1

        b76d2e6eb6d2bf289a5118c908578906851460d0

        SHA256

        3600ff58fdb37f53562e626fd74d6f4d8d39925d711a96f221bb4aca7992926a

        SHA512

        eadbfbee79aa0f34b35e0a9c9d717b3c8ac18729df8e52332b696352a2a41d0da37119ab1cb81a10bb7854b930e6479686f8fa8b5a447d48213e3c1c9304ce7b

      • C:\Users\Admin\AppData\Local\Temp\91a599fb57df5595914b7019fad54551713be537af250f0f43ebb7c9e2acbf39.exe.exe

        Filesize

        75KB

        MD5

        a7851a05e83f42f741a804320c485083

        SHA1

        b76d2e6eb6d2bf289a5118c908578906851460d0

        SHA256

        3600ff58fdb37f53562e626fd74d6f4d8d39925d711a96f221bb4aca7992926a

        SHA512

        eadbfbee79aa0f34b35e0a9c9d717b3c8ac18729df8e52332b696352a2a41d0da37119ab1cb81a10bb7854b930e6479686f8fa8b5a447d48213e3c1c9304ce7b

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        949c1d647427e45748ca7bf99f69f6c5

        SHA1

        cb82678be077dced0eac4746aa4d1cce90ab37c1

        SHA256

        af7ea121df690d7fddfea9342c9e4e7cbc68594a10009a2c927bb3148772f85d

        SHA512

        595d73796c765cb010f3dd557724742cc64efb244ceca5f6405a54674ce187f51a5f93d7717a4e6a5647c7178487b93a537fa9cb0a313da5048eddd9c40d646c

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        949c1d647427e45748ca7bf99f69f6c5

        SHA1

        cb82678be077dced0eac4746aa4d1cce90ab37c1

        SHA256

        af7ea121df690d7fddfea9342c9e4e7cbc68594a10009a2c927bb3148772f85d

        SHA512

        595d73796c765cb010f3dd557724742cc64efb244ceca5f6405a54674ce187f51a5f93d7717a4e6a5647c7178487b93a537fa9cb0a313da5048eddd9c40d646c

      • C:\Windows\rundl132.exe

        Filesize

        26KB

        MD5

        949c1d647427e45748ca7bf99f69f6c5

        SHA1

        cb82678be077dced0eac4746aa4d1cce90ab37c1

        SHA256

        af7ea121df690d7fddfea9342c9e4e7cbc68594a10009a2c927bb3148772f85d

        SHA512

        595d73796c765cb010f3dd557724742cc64efb244ceca5f6405a54674ce187f51a5f93d7717a4e6a5647c7178487b93a537fa9cb0a313da5048eddd9c40d646c

      • F:\$RECYCLE.BIN\S-1-5-21-3350690463-3549324357-1323838019-1000\_desktop.ini

        Filesize

        9B

        MD5

        6029ce528adbc1284163cdd2b27a082e

        SHA1

        a2f23e1d5101c3b6929686a2d5711c2af2dec1b7

        SHA256

        5036deecfbb090aa7f7c21c159b1921df0cf23eedafb7e0c208668ad82872dae

        SHA512

        a661e939e69a59f88fd86fa654371ba4b3e3e8faf5c1b39bdaa0def8b277b26b63e96d4f5eb047ca3d8888597165dc709f395eeaf333c25c9cf56441c31dd676

      • memory/3544-8-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3544-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-26-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-19-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-32-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-37-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-41-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-10-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-352-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-1084-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-2345-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4864-4647-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB