Analysis

  • max time kernel
    206s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 21:03

General

  • Target

    7abfe416a48dfd64918a31120647f8c1f9de35d5fc1969ca89c72eb89c681e9b.exe

  • Size

    255KB

  • MD5

    d86fd9e9ef6f00c85baaebffaa19db7d

  • SHA1

    f9d565de0eab70a2257ee48df13f061f810a3845

  • SHA256

    7abfe416a48dfd64918a31120647f8c1f9de35d5fc1969ca89c72eb89c681e9b

  • SHA512

    8b1e9bd0cd244cc2ccbef3ec16ab3f96c4e0314a570274e7ed2d8449cc466fe1e83eb0ab232796589e229507b2cba9c72e1c3b9f8bfe9ddfbdc85fd6e92b22c5

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJP:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI8

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 22 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7abfe416a48dfd64918a31120647f8c1f9de35d5fc1969ca89c72eb89c681e9b.exe
    "C:\Users\Admin\AppData\Local\Temp\7abfe416a48dfd64918a31120647f8c1f9de35d5fc1969ca89c72eb89c681e9b.exe"
    1⤵
    • Checks computer location settings
    • 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:4132
    • C:\Windows\SysWOW64\zmajcblraa.exe
      zmajcblraa.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
      • 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:344
      • C:\Windows\SysWOW64\ekvwumca.exe
        C:\Windows\system32\ekvwumca.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:3116
    • C:\Windows\SysWOW64\cjkaocedzzvbqke.exe
      cjkaocedzzvbqke.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1172
    • C:\Windows\SysWOW64\ekvwumca.exe
      ekvwumca.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:4508
    • C:\Windows\SysWOW64\elxahbcjsohzi.exe
      elxahbcjsohzi.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1540
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe

    Filesize

    255KB

    MD5

    21e5c22e98a0a855b57afb57d0fcadb9

    SHA1

    a2af5d768bc484870746f6453db9407782fe0291

    SHA256

    0da11e4b71bc517f7dbecd15d1159ef0383532eab47dfc5628d5898a71e45c9a

    SHA512

    94e139cd76b686fee29830a858863c74e2fbe7bf203a8094fa75efd9d8e2253b4eda31836334184725ea5b8121aa1167fd6fb9f157860e1ffc6a58a981bff2a7

  • C:\Windows\SysWOW64\cjkaocedzzvbqke.exe

    Filesize

    255KB

    MD5

    ab93c2bb84a9660eee7f22a353d2e72e

    SHA1

    2b322bec6b36ae5006a5b8521bcf5bf457f0c020

    SHA256

    fa760bfb17174d4e4c330ef0523c453662dcd7a351de8be341419fcb5b0c0e83

    SHA512

    491a318666df6e3c5e9dec4bae889d34b483af70860074ae5a24d069ebe8c69fa1bd3b1568d403a32b2a892485a7414325df23d3d8af0a6fbba63d41ae4d7c6d

  • C:\Windows\SysWOW64\cjkaocedzzvbqke.exe

    Filesize

    255KB

    MD5

    ab93c2bb84a9660eee7f22a353d2e72e

    SHA1

    2b322bec6b36ae5006a5b8521bcf5bf457f0c020

    SHA256

    fa760bfb17174d4e4c330ef0523c453662dcd7a351de8be341419fcb5b0c0e83

    SHA512

    491a318666df6e3c5e9dec4bae889d34b483af70860074ae5a24d069ebe8c69fa1bd3b1568d403a32b2a892485a7414325df23d3d8af0a6fbba63d41ae4d7c6d

  • C:\Windows\SysWOW64\ekvwumca.exe

    Filesize

    255KB

    MD5

    17cac3689799118eb5d5c3e71e5580b1

    SHA1

    a7eac573e0dcbf2c1f52c89953564a936c78afc7

    SHA256

    b71c334239ff0ac694f947585fe79b2835dfc5c7b73b4f3ac97aaded800155f9

    SHA512

    4ffc060dc5191a885c7cabc2b0d52ccc24b6698461ea1ebbfbc004da97e8092bdf73e1ddecbad00db21d0c708304c877f88df05514aec0045f4e0100ff07ccb3

  • C:\Windows\SysWOW64\ekvwumca.exe

    Filesize

    255KB

    MD5

    17cac3689799118eb5d5c3e71e5580b1

    SHA1

    a7eac573e0dcbf2c1f52c89953564a936c78afc7

    SHA256

    b71c334239ff0ac694f947585fe79b2835dfc5c7b73b4f3ac97aaded800155f9

    SHA512

    4ffc060dc5191a885c7cabc2b0d52ccc24b6698461ea1ebbfbc004da97e8092bdf73e1ddecbad00db21d0c708304c877f88df05514aec0045f4e0100ff07ccb3

  • C:\Windows\SysWOW64\ekvwumca.exe

    Filesize

    255KB

    MD5

    17cac3689799118eb5d5c3e71e5580b1

    SHA1

    a7eac573e0dcbf2c1f52c89953564a936c78afc7

    SHA256

    b71c334239ff0ac694f947585fe79b2835dfc5c7b73b4f3ac97aaded800155f9

    SHA512

    4ffc060dc5191a885c7cabc2b0d52ccc24b6698461ea1ebbfbc004da97e8092bdf73e1ddecbad00db21d0c708304c877f88df05514aec0045f4e0100ff07ccb3

  • C:\Windows\SysWOW64\elxahbcjsohzi.exe

    Filesize

    255KB

    MD5

    20c4ae2bad2fc8b6f1dcd0126a17f804

    SHA1

    2b26fd3e00ec16c5a66c2fcd076a4423cc4be2b8

    SHA256

    bffda001a9d1c6fcffce6bb06a1cc761cfb6a325a33f4e51398ebf4937b67f3c

    SHA512

    e65a0d7448e87e412a984e96453875e36f64993c1a9cf7983e35a48247fd95671866c581bba0b8635219bbabfab29ac347713bbbc59cf59e9b54e36070844435

  • C:\Windows\SysWOW64\elxahbcjsohzi.exe

    Filesize

    255KB

    MD5

    20c4ae2bad2fc8b6f1dcd0126a17f804

    SHA1

    2b26fd3e00ec16c5a66c2fcd076a4423cc4be2b8

    SHA256

    bffda001a9d1c6fcffce6bb06a1cc761cfb6a325a33f4e51398ebf4937b67f3c

    SHA512

    e65a0d7448e87e412a984e96453875e36f64993c1a9cf7983e35a48247fd95671866c581bba0b8635219bbabfab29ac347713bbbc59cf59e9b54e36070844435

  • C:\Windows\SysWOW64\zmajcblraa.exe

    Filesize

    255KB

    MD5

    f1fad13db64f344940001957d4cd5c1e

    SHA1

    8f25e9b6dd29b4e04070ba8c3b8be610935584bf

    SHA256

    50c32ac1e83912941bf8296472365e9746361fedc13c4fefef40566b8278acba

    SHA512

    86e44a78dc4ae26f804054b5c765ba5625b36c4c5d65549a80391662405dea7de80fce9ac9d7d8ea556102199a7c0d4fbbdee8f87b7b88db15ce562b7c2a65d8

  • C:\Windows\SysWOW64\zmajcblraa.exe

    Filesize

    255KB

    MD5

    f1fad13db64f344940001957d4cd5c1e

    SHA1

    8f25e9b6dd29b4e04070ba8c3b8be610935584bf

    SHA256

    50c32ac1e83912941bf8296472365e9746361fedc13c4fefef40566b8278acba

    SHA512

    86e44a78dc4ae26f804054b5c765ba5625b36c4c5d65549a80391662405dea7de80fce9ac9d7d8ea556102199a7c0d4fbbdee8f87b7b88db15ce562b7c2a65d8

  • C:\Windows\mydoc.rtf

    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

  • memory/344-161-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/344-133-0x0000000000000000-mapping.dmp

  • memory/344-145-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1172-162-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1172-136-0x0000000000000000-mapping.dmp

  • memory/1172-146-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1540-142-0x0000000000000000-mapping.dmp

  • memory/1540-164-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/1540-148-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3116-153-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3116-149-0x0000000000000000-mapping.dmp

  • memory/3116-166-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4132-152-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4132-132-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4508-147-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4508-139-0x0000000000000000-mapping.dmp

  • memory/4508-163-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4668-154-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

    Filesize

    64KB

  • memory/4668-159-0x00007FFEAA8E0000-0x00007FFEAA8F0000-memory.dmp

    Filesize

    64KB

  • memory/4668-158-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

    Filesize

    64KB

  • memory/4668-157-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

    Filesize

    64KB

  • memory/4668-156-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

    Filesize

    64KB

  • memory/4668-165-0x00007FFEAA8E0000-0x00007FFEAA8F0000-memory.dmp

    Filesize

    64KB

  • memory/4668-155-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

    Filesize

    64KB

  • memory/4668-151-0x0000000000000000-mapping.dmp