Analysis

  • max time kernel
    151s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 01:30

General

  • Target

    b11c5fd5d95c3907a9ffb46d98729ed691bd02f9355373cb0780ff01007fd487.exe

  • Size

    255KB

  • MD5

    fdaccd9d33c069d9902379b6c6edba61

  • SHA1

    bc46e7e6a5733ae1f87a97dd9a13dcff1646e262

  • SHA256

    b11c5fd5d95c3907a9ffb46d98729ed691bd02f9355373cb0780ff01007fd487

  • SHA512

    f745ea702c31bc8385c82adbdbe47998bf659199882c4d7c807934fc60de2c975e29e5a4164a5cc7dc62c138c91578d88b0dadc8ee57ea90a5776b79834e365d

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJz:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI6

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
  • 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 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 Program Files directory 15 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\b11c5fd5d95c3907a9ffb46d98729ed691bd02f9355373cb0780ff01007fd487.exe
    "C:\Users\Admin\AppData\Local\Temp\b11c5fd5d95c3907a9ffb46d98729ed691bd02f9355373cb0780ff01007fd487.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:1992
    • C:\Windows\SysWOW64\rwxldrngco.exe
      rwxldrngco.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:1952
      • C:\Windows\SysWOW64\qmjonomy.exe
        C:\Windows\system32\qmjonomy.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1128
    • C:\Windows\SysWOW64\lknjbnqjensffap.exe
      lknjbnqjensffap.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:936
    • C:\Windows\SysWOW64\qmjonomy.exe
      qmjonomy.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1148
    • C:\Windows\SysWOW64\rjkntmfzmzjpz.exe
      rjkntmfzmzjpz.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1500
    • 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:1552
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1480

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe

      Filesize

      255KB

      MD5

      30d8e831925c6613f2905dd859c3d017

      SHA1

      bf8f5f317d5f98d8003e2398d5b9012ded97837d

      SHA256

      0c92d6e3fe01a613cd0468d611528f8f1bad519f89f53eff45d9f73648a0dd52

      SHA512

      95cdd3503d6fbbc951981317cb603135eeede46dd62196c3f081b98c8021cbb16fe473cb9b77b619ce5cce53f331fc877b588fa18ce21b89498d49c522fd746c

    • C:\Windows\SysWOW64\lknjbnqjensffap.exe

      Filesize

      255KB

      MD5

      c0daed7c1a902fa41c8dfedb4b7b6ecb

      SHA1

      1032d88afdd0f8de1b0cada53c374a7126a24c62

      SHA256

      53b76d96d8513c640a6541418144171dc5f4d302de0754c97408fc77cb456eab

      SHA512

      e7992af9c63cb7114ea46223ad37531eebceb7bfba737632c0cb6939e8ad532a84ec90cf7a41e2de95f8403b118b22d79ccd3201c9b2cb0111e2ca67714262e2

    • C:\Windows\SysWOW64\lknjbnqjensffap.exe

      Filesize

      255KB

      MD5

      c0daed7c1a902fa41c8dfedb4b7b6ecb

      SHA1

      1032d88afdd0f8de1b0cada53c374a7126a24c62

      SHA256

      53b76d96d8513c640a6541418144171dc5f4d302de0754c97408fc77cb456eab

      SHA512

      e7992af9c63cb7114ea46223ad37531eebceb7bfba737632c0cb6939e8ad532a84ec90cf7a41e2de95f8403b118b22d79ccd3201c9b2cb0111e2ca67714262e2

    • C:\Windows\SysWOW64\qmjonomy.exe

      Filesize

      255KB

      MD5

      3119adc80fbc2a7de3e38d8fb0fdc3e1

      SHA1

      a40b956c5c17c316f6ef24f191051f5dcf20c7bd

      SHA256

      aca19994680ea7ff37bb9b98b59d176184827fd89772fb678f97ea16eb1c5580

      SHA512

      5f375d231b78c970d774b8af65e71685a86402c1801e765fe9c6c23b3b2e681c28de7a2b00f7ec317485492230a6318b0a32a3b47dc91923733c535d037c02a4

    • C:\Windows\SysWOW64\qmjonomy.exe

      Filesize

      255KB

      MD5

      3119adc80fbc2a7de3e38d8fb0fdc3e1

      SHA1

      a40b956c5c17c316f6ef24f191051f5dcf20c7bd

      SHA256

      aca19994680ea7ff37bb9b98b59d176184827fd89772fb678f97ea16eb1c5580

      SHA512

      5f375d231b78c970d774b8af65e71685a86402c1801e765fe9c6c23b3b2e681c28de7a2b00f7ec317485492230a6318b0a32a3b47dc91923733c535d037c02a4

    • C:\Windows\SysWOW64\qmjonomy.exe

      Filesize

      255KB

      MD5

      3119adc80fbc2a7de3e38d8fb0fdc3e1

      SHA1

      a40b956c5c17c316f6ef24f191051f5dcf20c7bd

      SHA256

      aca19994680ea7ff37bb9b98b59d176184827fd89772fb678f97ea16eb1c5580

      SHA512

      5f375d231b78c970d774b8af65e71685a86402c1801e765fe9c6c23b3b2e681c28de7a2b00f7ec317485492230a6318b0a32a3b47dc91923733c535d037c02a4

    • C:\Windows\SysWOW64\rjkntmfzmzjpz.exe

      Filesize

      255KB

      MD5

      84f0289930c679a4c05d9e1f53c1b73d

      SHA1

      5359e93c49fd4c96ace3909e7cd5d83149d8f52c

      SHA256

      36726d9b0b7ddeb55cb4c90080f698fdfc1e57f043521004c58ec38a72f84b99

      SHA512

      941536791385c9197d4a1aa202a2ffaa3dc2c63f52cd7905290ab42c3b9c4e246d2bc9bf06628639756b1bdc998380a3a561f08eb5aa893061d92e5f0b10eee1

    • C:\Windows\SysWOW64\rjkntmfzmzjpz.exe

      Filesize

      255KB

      MD5

      84f0289930c679a4c05d9e1f53c1b73d

      SHA1

      5359e93c49fd4c96ace3909e7cd5d83149d8f52c

      SHA256

      36726d9b0b7ddeb55cb4c90080f698fdfc1e57f043521004c58ec38a72f84b99

      SHA512

      941536791385c9197d4a1aa202a2ffaa3dc2c63f52cd7905290ab42c3b9c4e246d2bc9bf06628639756b1bdc998380a3a561f08eb5aa893061d92e5f0b10eee1

    • C:\Windows\SysWOW64\rwxldrngco.exe

      Filesize

      255KB

      MD5

      9935e636340a880866a3dfffe0a1edb3

      SHA1

      2b3802afc4059acca21070cc0e470cf1c7450737

      SHA256

      5110bb1d46342f99836212f16faef303cf3e1e7ded44e2a31c6dede968e4d7eb

      SHA512

      2113937f63cd1b41dd8dd16a700a6233fc92f79099ffa1210ed3d33b10462e55a7c4b8d0d21b9180244203657435117c4bc09f7452fe39feaf02084d4bda8372

    • C:\Windows\SysWOW64\rwxldrngco.exe

      Filesize

      255KB

      MD5

      9935e636340a880866a3dfffe0a1edb3

      SHA1

      2b3802afc4059acca21070cc0e470cf1c7450737

      SHA256

      5110bb1d46342f99836212f16faef303cf3e1e7ded44e2a31c6dede968e4d7eb

      SHA512

      2113937f63cd1b41dd8dd16a700a6233fc92f79099ffa1210ed3d33b10462e55a7c4b8d0d21b9180244203657435117c4bc09f7452fe39feaf02084d4bda8372

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\lknjbnqjensffap.exe

      Filesize

      255KB

      MD5

      c0daed7c1a902fa41c8dfedb4b7b6ecb

      SHA1

      1032d88afdd0f8de1b0cada53c374a7126a24c62

      SHA256

      53b76d96d8513c640a6541418144171dc5f4d302de0754c97408fc77cb456eab

      SHA512

      e7992af9c63cb7114ea46223ad37531eebceb7bfba737632c0cb6939e8ad532a84ec90cf7a41e2de95f8403b118b22d79ccd3201c9b2cb0111e2ca67714262e2

    • \Windows\SysWOW64\qmjonomy.exe

      Filesize

      255KB

      MD5

      3119adc80fbc2a7de3e38d8fb0fdc3e1

      SHA1

      a40b956c5c17c316f6ef24f191051f5dcf20c7bd

      SHA256

      aca19994680ea7ff37bb9b98b59d176184827fd89772fb678f97ea16eb1c5580

      SHA512

      5f375d231b78c970d774b8af65e71685a86402c1801e765fe9c6c23b3b2e681c28de7a2b00f7ec317485492230a6318b0a32a3b47dc91923733c535d037c02a4

    • \Windows\SysWOW64\qmjonomy.exe

      Filesize

      255KB

      MD5

      3119adc80fbc2a7de3e38d8fb0fdc3e1

      SHA1

      a40b956c5c17c316f6ef24f191051f5dcf20c7bd

      SHA256

      aca19994680ea7ff37bb9b98b59d176184827fd89772fb678f97ea16eb1c5580

      SHA512

      5f375d231b78c970d774b8af65e71685a86402c1801e765fe9c6c23b3b2e681c28de7a2b00f7ec317485492230a6318b0a32a3b47dc91923733c535d037c02a4

    • \Windows\SysWOW64\rjkntmfzmzjpz.exe

      Filesize

      255KB

      MD5

      84f0289930c679a4c05d9e1f53c1b73d

      SHA1

      5359e93c49fd4c96ace3909e7cd5d83149d8f52c

      SHA256

      36726d9b0b7ddeb55cb4c90080f698fdfc1e57f043521004c58ec38a72f84b99

      SHA512

      941536791385c9197d4a1aa202a2ffaa3dc2c63f52cd7905290ab42c3b9c4e246d2bc9bf06628639756b1bdc998380a3a561f08eb5aa893061d92e5f0b10eee1

    • \Windows\SysWOW64\rwxldrngco.exe

      Filesize

      255KB

      MD5

      9935e636340a880866a3dfffe0a1edb3

      SHA1

      2b3802afc4059acca21070cc0e470cf1c7450737

      SHA256

      5110bb1d46342f99836212f16faef303cf3e1e7ded44e2a31c6dede968e4d7eb

      SHA512

      2113937f63cd1b41dd8dd16a700a6233fc92f79099ffa1210ed3d33b10462e55a7c4b8d0d21b9180244203657435117c4bc09f7452fe39feaf02084d4bda8372

    • memory/936-62-0x0000000000000000-mapping.dmp

    • memory/936-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/936-79-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1128-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1128-100-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1128-84-0x0000000000000000-mapping.dmp

    • memory/1148-80-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1148-67-0x0000000000000000-mapping.dmp

    • memory/1148-98-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1480-104-0x000007FEFBE81000-0x000007FEFBE83000-memory.dmp

      Filesize

      8KB

    • memory/1480-103-0x0000000000000000-mapping.dmp

    • memory/1500-82-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1500-99-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1500-72-0x0000000000000000-mapping.dmp

    • memory/1552-88-0x0000000000000000-mapping.dmp

    • memory/1552-101-0x000000007148D000-0x0000000071498000-memory.dmp

      Filesize

      44KB

    • memory/1552-91-0x00000000704A1000-0x00000000704A3000-memory.dmp

      Filesize

      8KB

    • memory/1552-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1552-93-0x000000007148D000-0x0000000071498000-memory.dmp

      Filesize

      44KB

    • memory/1552-90-0x0000000072A21000-0x0000000072A24000-memory.dmp

      Filesize

      12KB

    • memory/1552-106-0x000000007148D000-0x0000000071498000-memory.dmp

      Filesize

      44KB

    • memory/1552-105-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1952-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1952-58-0x0000000000000000-mapping.dmp

    • memory/1952-78-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1992-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1992-56-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1992-77-0x0000000002FA0000-0x0000000003040000-memory.dmp

      Filesize

      640KB

    • memory/1992-54-0x0000000076141000-0x0000000076143000-memory.dmp

      Filesize

      8KB

    • memory/1992-57-0x0000000002FA0000-0x0000000003040000-memory.dmp

      Filesize

      640KB

    • memory/1992-81-0x0000000002FA0000-0x0000000003040000-memory.dmp

      Filesize

      640KB