Analysis

  • max time kernel
    205s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 19:11

General

  • Target

    584ea73677e46a5167811f5f090696cfe0a42f30c40cd6d34927c69681a163bf.exe

  • Size

    255KB

  • MD5

    6d568d8f69761cc31bd30f217a6b81a1

  • SHA1

    5b473f422f2824b270b4d35647f5ffdcfa6972c7

  • SHA256

    584ea73677e46a5167811f5f090696cfe0a42f30c40cd6d34927c69681a163bf

  • SHA512

    ade0b2f807be62c56f50495341432ae9543e07c8df8d96ec64b648a0b3329d8a401df382ea96bc621b69be688b2630470543b8c268877e237797181e0db9e1de

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJj:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI+

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Modifies Installed Components in the registry 2 TTPs 3 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 10 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 59 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\584ea73677e46a5167811f5f090696cfe0a42f30c40cd6d34927c69681a163bf.exe
    "C:\Users\Admin\AppData\Local\Temp\584ea73677e46a5167811f5f090696cfe0a42f30c40cd6d34927c69681a163bf.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\fwgtucunos.exe
      fwgtucunos.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\SysWOW64\dojkflnk.exe
        C:\Windows\system32\dojkflnk.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:1468
    • C:\Windows\SysWOW64\noyjxpcenemleke.exe
      noyjxpcenemleke.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2044
    • C:\Windows\SysWOW64\dojkflnk.exe
      dojkflnk.exe
      2⤵
      • Executes dropped EXE
      PID:436
    • C:\Windows\SysWOW64\zidubngpvzuct.exe
      zidubngpvzuct.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1448
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1936
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:968
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x488
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:884
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1660
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1612

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\dojkflnk.exe

            Filesize

            255KB

            MD5

            7dc4602b021c5468546d666254d6b4c7

            SHA1

            0363d9e8005498e209a50653f91d4b42c0587a7f

            SHA256

            c85cfc2585963ced2e3174cf7d7df1f5a3ae3434f7f6e4538c8b294417634f5e

            SHA512

            ad859121e7c119ce69de01042b9b849431e67db33742f590edee8a0ab9bb8ef0df940699853cd5dd6f633c731924c08f170f7f7d1c49022a30855046b320911c

          • C:\Windows\SysWOW64\dojkflnk.exe

            Filesize

            255KB

            MD5

            7dc4602b021c5468546d666254d6b4c7

            SHA1

            0363d9e8005498e209a50653f91d4b42c0587a7f

            SHA256

            c85cfc2585963ced2e3174cf7d7df1f5a3ae3434f7f6e4538c8b294417634f5e

            SHA512

            ad859121e7c119ce69de01042b9b849431e67db33742f590edee8a0ab9bb8ef0df940699853cd5dd6f633c731924c08f170f7f7d1c49022a30855046b320911c

          • C:\Windows\SysWOW64\dojkflnk.exe

            Filesize

            255KB

            MD5

            7dc4602b021c5468546d666254d6b4c7

            SHA1

            0363d9e8005498e209a50653f91d4b42c0587a7f

            SHA256

            c85cfc2585963ced2e3174cf7d7df1f5a3ae3434f7f6e4538c8b294417634f5e

            SHA512

            ad859121e7c119ce69de01042b9b849431e67db33742f590edee8a0ab9bb8ef0df940699853cd5dd6f633c731924c08f170f7f7d1c49022a30855046b320911c

          • C:\Windows\SysWOW64\fwgtucunos.exe

            Filesize

            255KB

            MD5

            a5d6df9a027cf5210c561724ee37b703

            SHA1

            5f195481e01d995923814cda657750da94579231

            SHA256

            92df0efd265ff7c218b5a1322fc74a3f2d776a8d5a670c87c765448e5ee320f3

            SHA512

            ff3c8c30a40a47c7a75f989ae825fcf5d6fa4b0fdb6e1dda3129cafeeea1d84b53cdd3e54445e9dadfbe617e87e53fd5a795b375675001bbbc5243c82a19ea59

          • C:\Windows\SysWOW64\fwgtucunos.exe

            Filesize

            255KB

            MD5

            a5d6df9a027cf5210c561724ee37b703

            SHA1

            5f195481e01d995923814cda657750da94579231

            SHA256

            92df0efd265ff7c218b5a1322fc74a3f2d776a8d5a670c87c765448e5ee320f3

            SHA512

            ff3c8c30a40a47c7a75f989ae825fcf5d6fa4b0fdb6e1dda3129cafeeea1d84b53cdd3e54445e9dadfbe617e87e53fd5a795b375675001bbbc5243c82a19ea59

          • C:\Windows\SysWOW64\noyjxpcenemleke.exe

            Filesize

            255KB

            MD5

            eb2f84b336d45eb9311d59f04a41fd49

            SHA1

            caeb1aabaf8b49ec04f515298b2e1f8c097aca89

            SHA256

            e418605f29e74f697bb5cb0d0a32f30673c10dae233dc8f7fd9927cc09d7f31d

            SHA512

            54a958917ca25d59459b610db29773adb74e3e8b7681ea67cf0db2a699d8540ad2508f5b40218e1547cf9a0d086cbdf3e0aa78509b3d6fa5a3566d1efa12d804

          • C:\Windows\SysWOW64\noyjxpcenemleke.exe

            Filesize

            255KB

            MD5

            eb2f84b336d45eb9311d59f04a41fd49

            SHA1

            caeb1aabaf8b49ec04f515298b2e1f8c097aca89

            SHA256

            e418605f29e74f697bb5cb0d0a32f30673c10dae233dc8f7fd9927cc09d7f31d

            SHA512

            54a958917ca25d59459b610db29773adb74e3e8b7681ea67cf0db2a699d8540ad2508f5b40218e1547cf9a0d086cbdf3e0aa78509b3d6fa5a3566d1efa12d804

          • C:\Windows\SysWOW64\zidubngpvzuct.exe

            Filesize

            255KB

            MD5

            9dfc6f51cace96dae60e1fcb9613724a

            SHA1

            14fa59e32ef2e7ed8ea708eefd08a3144a5f5c60

            SHA256

            6100a3519dd12f69e219fefab3f54d0f49dba8d1aca9cc6f9cb87f0f46720f89

            SHA512

            986d5321b2ebbaaeccfa78b8fabaef112747280a693be80f8fd7a8a61f9214f5ff764003873e0fe814c9cb6b33e8fa74c6f0202013a46aa259712f8e9193e18a

          • C:\Windows\SysWOW64\zidubngpvzuct.exe

            Filesize

            255KB

            MD5

            9dfc6f51cace96dae60e1fcb9613724a

            SHA1

            14fa59e32ef2e7ed8ea708eefd08a3144a5f5c60

            SHA256

            6100a3519dd12f69e219fefab3f54d0f49dba8d1aca9cc6f9cb87f0f46720f89

            SHA512

            986d5321b2ebbaaeccfa78b8fabaef112747280a693be80f8fd7a8a61f9214f5ff764003873e0fe814c9cb6b33e8fa74c6f0202013a46aa259712f8e9193e18a

          • C:\Windows\mydoc.rtf

            Filesize

            223B

            MD5

            06604e5941c126e2e7be02c5cd9f62ec

            SHA1

            4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

            SHA256

            85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

            SHA512

            803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

          • \Windows\SysWOW64\dojkflnk.exe

            Filesize

            255KB

            MD5

            7dc4602b021c5468546d666254d6b4c7

            SHA1

            0363d9e8005498e209a50653f91d4b42c0587a7f

            SHA256

            c85cfc2585963ced2e3174cf7d7df1f5a3ae3434f7f6e4538c8b294417634f5e

            SHA512

            ad859121e7c119ce69de01042b9b849431e67db33742f590edee8a0ab9bb8ef0df940699853cd5dd6f633c731924c08f170f7f7d1c49022a30855046b320911c

          • \Windows\SysWOW64\dojkflnk.exe

            Filesize

            255KB

            MD5

            7dc4602b021c5468546d666254d6b4c7

            SHA1

            0363d9e8005498e209a50653f91d4b42c0587a7f

            SHA256

            c85cfc2585963ced2e3174cf7d7df1f5a3ae3434f7f6e4538c8b294417634f5e

            SHA512

            ad859121e7c119ce69de01042b9b849431e67db33742f590edee8a0ab9bb8ef0df940699853cd5dd6f633c731924c08f170f7f7d1c49022a30855046b320911c

          • \Windows\SysWOW64\fwgtucunos.exe

            Filesize

            255KB

            MD5

            a5d6df9a027cf5210c561724ee37b703

            SHA1

            5f195481e01d995923814cda657750da94579231

            SHA256

            92df0efd265ff7c218b5a1322fc74a3f2d776a8d5a670c87c765448e5ee320f3

            SHA512

            ff3c8c30a40a47c7a75f989ae825fcf5d6fa4b0fdb6e1dda3129cafeeea1d84b53cdd3e54445e9dadfbe617e87e53fd5a795b375675001bbbc5243c82a19ea59

          • \Windows\SysWOW64\noyjxpcenemleke.exe

            Filesize

            255KB

            MD5

            eb2f84b336d45eb9311d59f04a41fd49

            SHA1

            caeb1aabaf8b49ec04f515298b2e1f8c097aca89

            SHA256

            e418605f29e74f697bb5cb0d0a32f30673c10dae233dc8f7fd9927cc09d7f31d

            SHA512

            54a958917ca25d59459b610db29773adb74e3e8b7681ea67cf0db2a699d8540ad2508f5b40218e1547cf9a0d086cbdf3e0aa78509b3d6fa5a3566d1efa12d804

          • \Windows\SysWOW64\zidubngpvzuct.exe

            Filesize

            255KB

            MD5

            9dfc6f51cace96dae60e1fcb9613724a

            SHA1

            14fa59e32ef2e7ed8ea708eefd08a3144a5f5c60

            SHA256

            6100a3519dd12f69e219fefab3f54d0f49dba8d1aca9cc6f9cb87f0f46720f89

            SHA512

            986d5321b2ebbaaeccfa78b8fabaef112747280a693be80f8fd7a8a61f9214f5ff764003873e0fe814c9cb6b33e8fa74c6f0202013a46aa259712f8e9193e18a

          • memory/436-84-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/968-74-0x000007FEFBAE1000-0x000007FEFBAE3000-memory.dmp

            Filesize

            8KB

          • memory/1448-98-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1448-85-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1468-100-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1468-86-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1780-97-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1780-80-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/1956-99-0x000000007112D000-0x0000000071138000-memory.dmp

            Filesize

            44KB

          • memory/1956-103-0x000000007112D000-0x0000000071138000-memory.dmp

            Filesize

            44KB

          • memory/1956-89-0x00000000726C1000-0x00000000726C4000-memory.dmp

            Filesize

            12KB

          • memory/1956-90-0x0000000070141000-0x0000000070143000-memory.dmp

            Filesize

            8KB

          • memory/1956-93-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1956-101-0x000000006B541000-0x000000006B543000-memory.dmp

            Filesize

            8KB

          • memory/1956-96-0x000000006B6B1000-0x000000006B6B3000-memory.dmp

            Filesize

            8KB

          • memory/2040-76-0x0000000003010000-0x00000000030B0000-memory.dmp

            Filesize

            640KB

          • memory/2040-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

            Filesize

            8KB

          • memory/2040-75-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/2040-88-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/2044-92-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB

          • memory/2044-82-0x0000000000400000-0x00000000004A0000-memory.dmp

            Filesize

            640KB