Analysis

  • max time kernel
    153s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 07:56

General

  • Target

    be94ffd78be149ac7ba4b07446f812ddb14836ad99c32834f1a9baac2cfe9b26.exe

  • Size

    255KB

  • MD5

    76a179876a2583c550f358966c3158c6

  • SHA1

    0936c8410e3a4e53ae488d8a09fe3ece4f7dc22a

  • SHA256

    be94ffd78be149ac7ba4b07446f812ddb14836ad99c32834f1a9baac2cfe9b26

  • SHA512

    1f904e847443e68ade0d48b2262a572f41da1a7a1561916c498e07d50a0408dde72a810de758cac68b22437e26caaf9aaaf1739535839e01207a34f71c1d7cb9

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJd:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIO

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 30 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 13 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\be94ffd78be149ac7ba4b07446f812ddb14836ad99c32834f1a9baac2cfe9b26.exe
    "C:\Users\Admin\AppData\Local\Temp\be94ffd78be149ac7ba4b07446f812ddb14836ad99c32834f1a9baac2cfe9b26.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:1184
    • C:\Windows\SysWOW64\qfftdsqnrz.exe
      qfftdsqnrz.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:820
      • C:\Windows\SysWOW64\gbybufws.exe
        C:\Windows\system32\gbybufws.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1548
    • C:\Windows\SysWOW64\bhqziyhedvgtffn.exe
      bhqziyhedvgtffn.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:672
    • C:\Windows\SysWOW64\gbybufws.exe
      gbybufws.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:1088
    • C:\Windows\SysWOW64\pwhesomoahbzg.exe
      pwhesomoahbzg.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:676
    • 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:1600

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      255KB

      MD5

      02fee1f677449aa05edae54107f50aa2

      SHA1

      60a5408d10fbe4b2d3d36d1541730e04ee8e5feb

      SHA256

      9b099fed263e2d2f17220a1b55a4767d9a4ce6e9046534f504aee602417e1a47

      SHA512

      e1a487693e4d069914ac94a75f80c87a1bff3c6ecc56322be813ee2e9586ca6bf954fd59c4a0452f748e5f2a758b364a3a7e81cb7644edc04b8086dc759ed7ed

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

      Filesize

      255KB

      MD5

      9410c493ab7e14b9afb5c876828714b8

      SHA1

      b6cd69e1f08b7dd6a0e5a1fa0dc69cad272c6a73

      SHA256

      ba904ef16b02a3a2e500ee95645fd73cd904cd570fbfe249303235265985b79f

      SHA512

      a0e8b24bc4a236dbdcc337dbdf518738364c77ba3982776285be02686076b2374ed56d4df985bc467e508f739d2e82458817a6aca59cf5b6d0704d6813834571

    • C:\Windows\SysWOW64\bhqziyhedvgtffn.exe

      Filesize

      255KB

      MD5

      2a241bf4031be00d1511c74a61438304

      SHA1

      6af13450d53cbbfde6f6982045b75ef88be618d3

      SHA256

      63571990b90a677dd7def91d094aabc57f141b988e7bb0390f7a4fdd06ed3b7d

      SHA512

      8190f7c0832a039b391073571cffcc0239dde7a9e72612dcde839211564fd120cd61628cb39a02fff4f5b17f6ab607f6aa6883651e7eec6519fa0b9d0dc69e19

    • C:\Windows\SysWOW64\bhqziyhedvgtffn.exe

      Filesize

      255KB

      MD5

      2a241bf4031be00d1511c74a61438304

      SHA1

      6af13450d53cbbfde6f6982045b75ef88be618d3

      SHA256

      63571990b90a677dd7def91d094aabc57f141b988e7bb0390f7a4fdd06ed3b7d

      SHA512

      8190f7c0832a039b391073571cffcc0239dde7a9e72612dcde839211564fd120cd61628cb39a02fff4f5b17f6ab607f6aa6883651e7eec6519fa0b9d0dc69e19

    • C:\Windows\SysWOW64\gbybufws.exe

      Filesize

      255KB

      MD5

      49ed3c67c395fc08f8194e5910b1a503

      SHA1

      94eab5e5544dc486234c90c625ae52ea22b42254

      SHA256

      fffb316b78496c4dd99e539d3c3ec3b6c605abbc825809d31e85c03414cfe0ef

      SHA512

      d22e79792306c7a1215de4fade06eb0cfa4babec792ec2cad5f9069de2d7ed098b16960a277b6cb7d4c0e5898f976413e90c14e0188d369af84a2ad074d5e0e0

    • C:\Windows\SysWOW64\gbybufws.exe

      Filesize

      255KB

      MD5

      49ed3c67c395fc08f8194e5910b1a503

      SHA1

      94eab5e5544dc486234c90c625ae52ea22b42254

      SHA256

      fffb316b78496c4dd99e539d3c3ec3b6c605abbc825809d31e85c03414cfe0ef

      SHA512

      d22e79792306c7a1215de4fade06eb0cfa4babec792ec2cad5f9069de2d7ed098b16960a277b6cb7d4c0e5898f976413e90c14e0188d369af84a2ad074d5e0e0

    • C:\Windows\SysWOW64\gbybufws.exe

      Filesize

      255KB

      MD5

      49ed3c67c395fc08f8194e5910b1a503

      SHA1

      94eab5e5544dc486234c90c625ae52ea22b42254

      SHA256

      fffb316b78496c4dd99e539d3c3ec3b6c605abbc825809d31e85c03414cfe0ef

      SHA512

      d22e79792306c7a1215de4fade06eb0cfa4babec792ec2cad5f9069de2d7ed098b16960a277b6cb7d4c0e5898f976413e90c14e0188d369af84a2ad074d5e0e0

    • C:\Windows\SysWOW64\pwhesomoahbzg.exe

      Filesize

      255KB

      MD5

      fe9835b157f4603120319ff3c47c4e4c

      SHA1

      47d925869ca68cf4e6069ed193167d118e26030b

      SHA256

      6a615920729a01dddd353adeab3a211a758e02bf93b0f11a63fa9847e3fe506e

      SHA512

      da670ab04aff7357c8ebdda81e49d009b0457e22b55134c79e77c7c8db2110b95136ea5f6843c1f695bb7e99e5eb041cac2930f76cd6923749954332a3d21e1c

    • C:\Windows\SysWOW64\pwhesomoahbzg.exe

      Filesize

      255KB

      MD5

      fe9835b157f4603120319ff3c47c4e4c

      SHA1

      47d925869ca68cf4e6069ed193167d118e26030b

      SHA256

      6a615920729a01dddd353adeab3a211a758e02bf93b0f11a63fa9847e3fe506e

      SHA512

      da670ab04aff7357c8ebdda81e49d009b0457e22b55134c79e77c7c8db2110b95136ea5f6843c1f695bb7e99e5eb041cac2930f76cd6923749954332a3d21e1c

    • C:\Windows\SysWOW64\qfftdsqnrz.exe

      Filesize

      255KB

      MD5

      392c04c61296a4d86fed5b80f2a235e4

      SHA1

      41ab950a1b2a64497a161fbe43846c525d88b8b9

      SHA256

      016aaf5222c2ad7e7dcbf47b9be8ea41b2d693c9294f0ab9adf4cc5a0db78fb4

      SHA512

      573f4f8c3042d5c0dde44ed891d0ee4c04f0debe0c9f08da9f6e55bb8b47c86c01964bdb0257a7442bf93fb4fc69e1f5d9828b2727afd868aac8a76407a3ff13

    • C:\Windows\SysWOW64\qfftdsqnrz.exe

      Filesize

      255KB

      MD5

      392c04c61296a4d86fed5b80f2a235e4

      SHA1

      41ab950a1b2a64497a161fbe43846c525d88b8b9

      SHA256

      016aaf5222c2ad7e7dcbf47b9be8ea41b2d693c9294f0ab9adf4cc5a0db78fb4

      SHA512

      573f4f8c3042d5c0dde44ed891d0ee4c04f0debe0c9f08da9f6e55bb8b47c86c01964bdb0257a7442bf93fb4fc69e1f5d9828b2727afd868aac8a76407a3ff13

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\bhqziyhedvgtffn.exe

      Filesize

      255KB

      MD5

      2a241bf4031be00d1511c74a61438304

      SHA1

      6af13450d53cbbfde6f6982045b75ef88be618d3

      SHA256

      63571990b90a677dd7def91d094aabc57f141b988e7bb0390f7a4fdd06ed3b7d

      SHA512

      8190f7c0832a039b391073571cffcc0239dde7a9e72612dcde839211564fd120cd61628cb39a02fff4f5b17f6ab607f6aa6883651e7eec6519fa0b9d0dc69e19

    • \Windows\SysWOW64\gbybufws.exe

      Filesize

      255KB

      MD5

      49ed3c67c395fc08f8194e5910b1a503

      SHA1

      94eab5e5544dc486234c90c625ae52ea22b42254

      SHA256

      fffb316b78496c4dd99e539d3c3ec3b6c605abbc825809d31e85c03414cfe0ef

      SHA512

      d22e79792306c7a1215de4fade06eb0cfa4babec792ec2cad5f9069de2d7ed098b16960a277b6cb7d4c0e5898f976413e90c14e0188d369af84a2ad074d5e0e0

    • \Windows\SysWOW64\gbybufws.exe

      Filesize

      255KB

      MD5

      49ed3c67c395fc08f8194e5910b1a503

      SHA1

      94eab5e5544dc486234c90c625ae52ea22b42254

      SHA256

      fffb316b78496c4dd99e539d3c3ec3b6c605abbc825809d31e85c03414cfe0ef

      SHA512

      d22e79792306c7a1215de4fade06eb0cfa4babec792ec2cad5f9069de2d7ed098b16960a277b6cb7d4c0e5898f976413e90c14e0188d369af84a2ad074d5e0e0

    • \Windows\SysWOW64\pwhesomoahbzg.exe

      Filesize

      255KB

      MD5

      fe9835b157f4603120319ff3c47c4e4c

      SHA1

      47d925869ca68cf4e6069ed193167d118e26030b

      SHA256

      6a615920729a01dddd353adeab3a211a758e02bf93b0f11a63fa9847e3fe506e

      SHA512

      da670ab04aff7357c8ebdda81e49d009b0457e22b55134c79e77c7c8db2110b95136ea5f6843c1f695bb7e99e5eb041cac2930f76cd6923749954332a3d21e1c

    • \Windows\SysWOW64\qfftdsqnrz.exe

      Filesize

      255KB

      MD5

      392c04c61296a4d86fed5b80f2a235e4

      SHA1

      41ab950a1b2a64497a161fbe43846c525d88b8b9

      SHA256

      016aaf5222c2ad7e7dcbf47b9be8ea41b2d693c9294f0ab9adf4cc5a0db78fb4

      SHA512

      573f4f8c3042d5c0dde44ed891d0ee4c04f0debe0c9f08da9f6e55bb8b47c86c01964bdb0257a7442bf93fb4fc69e1f5d9828b2727afd868aac8a76407a3ff13

    • memory/672-61-0x0000000000000000-mapping.dmp

    • memory/672-93-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/672-81-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/676-95-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/676-70-0x0000000000000000-mapping.dmp

    • memory/676-83-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/820-58-0x0000000000000000-mapping.dmp

    • memory/820-79-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/820-92-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1088-94-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1088-82-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1088-64-0x0000000000000000-mapping.dmp

    • memory/1184-80-0x00000000023B0000-0x0000000002450000-memory.dmp

      Filesize

      640KB

    • memory/1184-84-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1184-55-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1184-89-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1184-57-0x00000000023B0000-0x0000000002450000-memory.dmp

      Filesize

      640KB

    • memory/1184-78-0x00000000023B0000-0x0000000002450000-memory.dmp

      Filesize

      640KB

    • memory/1184-54-0x0000000075991000-0x0000000075993000-memory.dmp

      Filesize

      8KB

    • memory/1548-91-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1548-85-0x0000000000000000-mapping.dmp

    • memory/1548-97-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1552-96-0x000000006FD31000-0x000000006FD33000-memory.dmp

      Filesize

      8KB

    • memory/1552-100-0x0000000070D1D000-0x0000000070D28000-memory.dmp

      Filesize

      44KB

    • memory/1552-98-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1552-102-0x0000000070D1D000-0x0000000070D28000-memory.dmp

      Filesize

      44KB

    • memory/1552-90-0x00000000722B1000-0x00000000722B4000-memory.dmp

      Filesize

      12KB

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

    • memory/1552-107-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1552-108-0x0000000070D1D000-0x0000000070D28000-memory.dmp

      Filesize

      44KB

    • memory/1600-103-0x0000000000000000-mapping.dmp

    • memory/1600-104-0x000007FEFB7C1000-0x000007FEFB7C3000-memory.dmp

      Filesize

      8KB