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Analysis

  • max time kernel
    236s
  • max time network
    334s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 19:03

General

  • Target

    20d1cff3ade88e1313ad34e3cb857908831ae6cf18487037614a288cceb8472c.exe

  • Size

    255KB

  • MD5

    cc12ce02c458d651196298b6c478dd18

  • SHA1

    05a2c264d9a57f3ce49e7d770ac846559b947309

  • SHA256

    20d1cff3ade88e1313ad34e3cb857908831ae6cf18487037614a288cceb8472c

  • SHA512

    b4a8cf8a775ee4be9f7c655bc8f2c4f06a32ed0bf371033569cd7066927a10a87bc5a629a32b7c3974a805b35a647ab7c903f2bf3753491f66557cd4fcd104b8

  • SSDEEP

    6144:1xlZam+akqx6YQJXcNlEHUIQeE3mmBWFv67:Plf5j6zCNa0xeE3mu

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
  • UPX packed file 28 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Windows directory 5 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 FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20d1cff3ade88e1313ad34e3cb857908831ae6cf18487037614a288cceb8472c.exe
    "C:\Users\Admin\AppData\Local\Temp\20d1cff3ade88e1313ad34e3cb857908831ae6cf18487037614a288cceb8472c.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:472
    • C:\Windows\SysWOW64\ihioxqnjgp.exe
      ihioxqnjgp.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:1908
      • C:\Windows\SysWOW64\lfiyaxid.exe
        C:\Windows\system32\lfiyaxid.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1988
    • C:\Windows\SysWOW64\tjpjmaxntshhmej.exe
      tjpjmaxntshhmej.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:788
    • C:\Windows\SysWOW64\lfiyaxid.exe
      lfiyaxid.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1476
    • C:\Windows\SysWOW64\fybnlznaqocaz.exe
      fybnlznaqocaz.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:868
    • 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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:616
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1588

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\fybnlznaqocaz.exe

      Filesize

      255KB

      MD5

      9e2c48a0eb27bc8431bd419717c7047f

      SHA1

      326e852e0963ff34ccc5d20abf7235188353038c

      SHA256

      daccddfd8f5a7965012d5cfbc87043237297993a70f0fc6ca3a8e9f1cdf322cc

      SHA512

      528ea2c86efff05a007f3ac4ca23f3b3ec46eb9fa6214082150bc095880ea58adbc5ffec737765e9d7c782f25b1d0def3e10bc16c37e08cdc8694e86191147c9

    • C:\Windows\SysWOW64\fybnlznaqocaz.exe

      Filesize

      255KB

      MD5

      9e2c48a0eb27bc8431bd419717c7047f

      SHA1

      326e852e0963ff34ccc5d20abf7235188353038c

      SHA256

      daccddfd8f5a7965012d5cfbc87043237297993a70f0fc6ca3a8e9f1cdf322cc

      SHA512

      528ea2c86efff05a007f3ac4ca23f3b3ec46eb9fa6214082150bc095880ea58adbc5ffec737765e9d7c782f25b1d0def3e10bc16c37e08cdc8694e86191147c9

    • C:\Windows\SysWOW64\ihioxqnjgp.exe

      Filesize

      255KB

      MD5

      c06f5456d1ba51c14c980081ba10510a

      SHA1

      d4dd6b7896f3ca57cd318253f909074398e5f395

      SHA256

      423d58b8b9e32be176572a5ef1c190c8bb91551a01e97ee0a0d492addc381d97

      SHA512

      a3f9c0d77220ab61d28e6859b53ffa72bda04172ed2ca9c7cf63558ed6af36d126814ea087d78be65fc98e5a4a719f7ab789a0254ac399add3430db51c786364

    • C:\Windows\SysWOW64\ihioxqnjgp.exe

      Filesize

      255KB

      MD5

      c06f5456d1ba51c14c980081ba10510a

      SHA1

      d4dd6b7896f3ca57cd318253f909074398e5f395

      SHA256

      423d58b8b9e32be176572a5ef1c190c8bb91551a01e97ee0a0d492addc381d97

      SHA512

      a3f9c0d77220ab61d28e6859b53ffa72bda04172ed2ca9c7cf63558ed6af36d126814ea087d78be65fc98e5a4a719f7ab789a0254ac399add3430db51c786364

    • C:\Windows\SysWOW64\lfiyaxid.exe

      Filesize

      255KB

      MD5

      fc22a961158ef5228061a48250a9c3b4

      SHA1

      8b5dada3388d548a4d74a91cf73054a4c7ee27f5

      SHA256

      cbfafc8c4ceef8d962576dc3e49eba8e25ce869d6208f289f35d49b903a80d69

      SHA512

      6be54cab3ca2af6967ddefca807581fcda7db93fd62d7a7fbc8e93d6f57b38884225b1d840ad9e8d783ec307dce83fc8f4759c25acdedc50ee727cdb47e8ab95

    • C:\Windows\SysWOW64\lfiyaxid.exe

      Filesize

      255KB

      MD5

      fc22a961158ef5228061a48250a9c3b4

      SHA1

      8b5dada3388d548a4d74a91cf73054a4c7ee27f5

      SHA256

      cbfafc8c4ceef8d962576dc3e49eba8e25ce869d6208f289f35d49b903a80d69

      SHA512

      6be54cab3ca2af6967ddefca807581fcda7db93fd62d7a7fbc8e93d6f57b38884225b1d840ad9e8d783ec307dce83fc8f4759c25acdedc50ee727cdb47e8ab95

    • C:\Windows\SysWOW64\lfiyaxid.exe

      Filesize

      255KB

      MD5

      fc22a961158ef5228061a48250a9c3b4

      SHA1

      8b5dada3388d548a4d74a91cf73054a4c7ee27f5

      SHA256

      cbfafc8c4ceef8d962576dc3e49eba8e25ce869d6208f289f35d49b903a80d69

      SHA512

      6be54cab3ca2af6967ddefca807581fcda7db93fd62d7a7fbc8e93d6f57b38884225b1d840ad9e8d783ec307dce83fc8f4759c25acdedc50ee727cdb47e8ab95

    • C:\Windows\SysWOW64\tjpjmaxntshhmej.exe

      Filesize

      255KB

      MD5

      f02636b7607ddfd338520d5f08525d19

      SHA1

      08866d46336a5b0a35201f3d4f42e71a7fd1b8ee

      SHA256

      a8488ca77d1540190cfb8a4c7e44ee626d11e03217cebf32c2bab2a25c0bd490

      SHA512

      47112389e74d98ff4e63030677652c9609126d21ba417ddd17cc4896893fad458d31b1898b890b90120ce75b4e192b672cf356084cd4a3d460189d1b9218dc98

    • C:\Windows\SysWOW64\tjpjmaxntshhmej.exe

      Filesize

      255KB

      MD5

      f02636b7607ddfd338520d5f08525d19

      SHA1

      08866d46336a5b0a35201f3d4f42e71a7fd1b8ee

      SHA256

      a8488ca77d1540190cfb8a4c7e44ee626d11e03217cebf32c2bab2a25c0bd490

      SHA512

      47112389e74d98ff4e63030677652c9609126d21ba417ddd17cc4896893fad458d31b1898b890b90120ce75b4e192b672cf356084cd4a3d460189d1b9218dc98

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\fybnlznaqocaz.exe

      Filesize

      255KB

      MD5

      9e2c48a0eb27bc8431bd419717c7047f

      SHA1

      326e852e0963ff34ccc5d20abf7235188353038c

      SHA256

      daccddfd8f5a7965012d5cfbc87043237297993a70f0fc6ca3a8e9f1cdf322cc

      SHA512

      528ea2c86efff05a007f3ac4ca23f3b3ec46eb9fa6214082150bc095880ea58adbc5ffec737765e9d7c782f25b1d0def3e10bc16c37e08cdc8694e86191147c9

    • \Windows\SysWOW64\ihioxqnjgp.exe

      Filesize

      255KB

      MD5

      c06f5456d1ba51c14c980081ba10510a

      SHA1

      d4dd6b7896f3ca57cd318253f909074398e5f395

      SHA256

      423d58b8b9e32be176572a5ef1c190c8bb91551a01e97ee0a0d492addc381d97

      SHA512

      a3f9c0d77220ab61d28e6859b53ffa72bda04172ed2ca9c7cf63558ed6af36d126814ea087d78be65fc98e5a4a719f7ab789a0254ac399add3430db51c786364

    • \Windows\SysWOW64\lfiyaxid.exe

      Filesize

      255KB

      MD5

      fc22a961158ef5228061a48250a9c3b4

      SHA1

      8b5dada3388d548a4d74a91cf73054a4c7ee27f5

      SHA256

      cbfafc8c4ceef8d962576dc3e49eba8e25ce869d6208f289f35d49b903a80d69

      SHA512

      6be54cab3ca2af6967ddefca807581fcda7db93fd62d7a7fbc8e93d6f57b38884225b1d840ad9e8d783ec307dce83fc8f4759c25acdedc50ee727cdb47e8ab95

    • \Windows\SysWOW64\lfiyaxid.exe

      Filesize

      255KB

      MD5

      fc22a961158ef5228061a48250a9c3b4

      SHA1

      8b5dada3388d548a4d74a91cf73054a4c7ee27f5

      SHA256

      cbfafc8c4ceef8d962576dc3e49eba8e25ce869d6208f289f35d49b903a80d69

      SHA512

      6be54cab3ca2af6967ddefca807581fcda7db93fd62d7a7fbc8e93d6f57b38884225b1d840ad9e8d783ec307dce83fc8f4759c25acdedc50ee727cdb47e8ab95

    • \Windows\SysWOW64\tjpjmaxntshhmej.exe

      Filesize

      255KB

      MD5

      f02636b7607ddfd338520d5f08525d19

      SHA1

      08866d46336a5b0a35201f3d4f42e71a7fd1b8ee

      SHA256

      a8488ca77d1540190cfb8a4c7e44ee626d11e03217cebf32c2bab2a25c0bd490

      SHA512

      47112389e74d98ff4e63030677652c9609126d21ba417ddd17cc4896893fad458d31b1898b890b90120ce75b4e192b672cf356084cd4a3d460189d1b9218dc98

    • memory/472-83-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/472-58-0x00000000021D0000-0x0000000002270000-memory.dmp

      Filesize

      640KB

    • memory/472-54-0x00000000757E1000-0x00000000757E3000-memory.dmp

      Filesize

      8KB

    • memory/472-56-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/472-55-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/616-84-0x00000000721F1000-0x00000000721F4000-memory.dmp

      Filesize

      12KB

    • memory/616-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/616-94-0x0000000070C5D000-0x0000000070C68000-memory.dmp

      Filesize

      44KB

    • memory/616-86-0x000000006FC71000-0x000000006FC73000-memory.dmp

      Filesize

      8KB

    • memory/616-101-0x0000000070C5D000-0x0000000070C68000-memory.dmp

      Filesize

      44KB

    • memory/788-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/788-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/868-98-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/868-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1476-88-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1476-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1588-103-0x000007FEFB8A1000-0x000007FEFB8A3000-memory.dmp

      Filesize

      8KB

    • memory/1908-85-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1908-95-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1908-99-0x0000000003850000-0x00000000038F0000-memory.dmp

      Filesize

      640KB

    • memory/1988-100-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1988-90-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB