Analysis

  • max time kernel
    188s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 01:32

General

  • Target

    772ff9794d412f70f3600099c7e20fd438d7ffe8a737f5b3ecaec8a4db8d3314.exe

  • Size

    255KB

  • MD5

    460dfde69634b19dbeee443af0e0b939

  • SHA1

    0a3c1231c6f1aeacf1360a69dbd0becc8e6c52ac

  • SHA256

    772ff9794d412f70f3600099c7e20fd438d7ffe8a737f5b3ecaec8a4db8d3314

  • SHA512

    e4536c9ef0390694effe0798cd3c5d6e2149cdc3a6cd74848acd56b3b63dcb3bbfaeec9f227720e5080059b118a86b98d8c3d0f305e78c412866ad3fd77e2d78

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJB:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIa

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 1 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 11 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 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 33 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of FindShellTrayWindow 59 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\772ff9794d412f70f3600099c7e20fd438d7ffe8a737f5b3ecaec8a4db8d3314.exe
    "C:\Users\Admin\AppData\Local\Temp\772ff9794d412f70f3600099c7e20fd438d7ffe8a737f5b3ecaec8a4db8d3314.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:884
    • C:\Windows\SysWOW64\mklhtqjxoi.exe
      mklhtqjxoi.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:1892
      • C:\Windows\SysWOW64\stnjnthh.exe
        C:\Windows\system32\stnjnthh.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1516
    • C:\Windows\SysWOW64\wccwqowlgntdtpz.exe
      wccwqowlgntdtpz.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1736
    • C:\Windows\SysWOW64\stnjnthh.exe
      stnjnthh.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:800
    • C:\Windows\SysWOW64\nyncsvmertzuy.exe
      nyncsvmertzuy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:936
    • 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:1792
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:740
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:892
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x480
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1884

    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

      c06bc3d2a0758271b91c0390e9f686a1

      SHA1

      6b5944de44e56dc78ce2af7d1aded4b7ac0194af

      SHA256

      860305ed66ac20eee8255438ed4bc6f97d479512a1308710f8f2d4f193442f46

      SHA512

      d80acdff943fe035b17910f4dcba0fb43125a387a17732169412112396f6d38c5f45df52861a06baa01060ea302b310d943b43ccd2dbb11900d41d20093f163f

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

      Filesize

      255KB

      MD5

      adb2b312f799c6cb84929e343980c49a

      SHA1

      b6015ffbb428db8e588486337caeb22307d7e5ac

      SHA256

      2de2cd8374357c4a051c4775132fdcfa5969e9da64e1241a330dbcce167c23fe

      SHA512

      18926f097fa451e758fe2d6288aa2f8b8084e56d41d8cadc9bdca291d3166312db55930850009db67ca4ec4ba6818db93b4a5b1a92daeca75b1eb7976f1d16a9

    • C:\Users\Admin\Documents\OpenUninstall.doc.exe

      Filesize

      255KB

      MD5

      edcd3dfb256d2d6ec86972e217019921

      SHA1

      35a4194a22e19ecc79c9a182c97236567263264b

      SHA256

      4ea3ad487d131a86d8010c61d195bedde14b5f5194a5d94f5387961185eb7eed

      SHA512

      6b83f30536f3e4ec6e5cbd2423936c7abad20bf53cb1273577e98ed06fd0748e8d82e57f49c14cc58b249b453abf0f897c82db98a2c02830ff5a5b37abcee351

    • C:\Users\Admin\Documents\ReadMerge.doc.exe

      Filesize

      255KB

      MD5

      2d9263c209934769dc0e2afed91ac5f7

      SHA1

      b68f574acd639a8e705092477accf9f9a3470617

      SHA256

      018b3870487425645a4652f7087ea5152709cc279ccf3d0e8464fdecb037c607

      SHA512

      f2750a8a433cfc7cf4b4e0cfd85f37fc6a5c13542e8b7298ee677a666b7bbb2e198194eb9b1713b8c3aab843fad8b9dcb9f7b452f5ad440c0df8d0edae7c09b1

    • C:\Windows\SysWOW64\mklhtqjxoi.exe

      Filesize

      255KB

      MD5

      f0132dc8824da1ba6c33684056b97258

      SHA1

      de1c3b1ca0ff40675eaba5579621e124ebff3324

      SHA256

      95fcb87c6c72b16de1eb1778f93fea42fe2d7f686f1a6c0cdeb5c8833da3f476

      SHA512

      2de25ac7c96f9c642e16ff2216e72f8f5edf83cd8a101c57b3d96998494d62e4ce31ea064ffc13179e4b0850f5e86f4fa946d7ac509c7fe56910018bb1f963a7

    • C:\Windows\SysWOW64\mklhtqjxoi.exe

      Filesize

      255KB

      MD5

      f0132dc8824da1ba6c33684056b97258

      SHA1

      de1c3b1ca0ff40675eaba5579621e124ebff3324

      SHA256

      95fcb87c6c72b16de1eb1778f93fea42fe2d7f686f1a6c0cdeb5c8833da3f476

      SHA512

      2de25ac7c96f9c642e16ff2216e72f8f5edf83cd8a101c57b3d96998494d62e4ce31ea064ffc13179e4b0850f5e86f4fa946d7ac509c7fe56910018bb1f963a7

    • C:\Windows\SysWOW64\nyncsvmertzuy.exe

      Filesize

      255KB

      MD5

      b77ae8d3bf15e7cb4029e69ac62c7773

      SHA1

      17c0f4f08946db1be1781cbdee13dcf9106c8d8a

      SHA256

      b975aae269a71fb083d939057fd8bfc20f2d211092240f0426c9dd0482de92fe

      SHA512

      cd34a51f886e113616de3784b31ac077828cbbb1a2e68e04ad170aff2f9b3c575ee553376911db8904e5573f62a277b5518b10505a746f1fb900e1036c2d7e1b

    • C:\Windows\SysWOW64\nyncsvmertzuy.exe

      Filesize

      255KB

      MD5

      b77ae8d3bf15e7cb4029e69ac62c7773

      SHA1

      17c0f4f08946db1be1781cbdee13dcf9106c8d8a

      SHA256

      b975aae269a71fb083d939057fd8bfc20f2d211092240f0426c9dd0482de92fe

      SHA512

      cd34a51f886e113616de3784b31ac077828cbbb1a2e68e04ad170aff2f9b3c575ee553376911db8904e5573f62a277b5518b10505a746f1fb900e1036c2d7e1b

    • C:\Windows\SysWOW64\stnjnthh.exe

      Filesize

      255KB

      MD5

      10628e1628742dc9c4b959acc76fb1b5

      SHA1

      ee16c6b0630143ade393d0cc5320e9d89c0a85bb

      SHA256

      8f3313ee754ddee068facb9c8213de94eba135963023c74811ee8884072cc2f6

      SHA512

      321faea0125b930588bb2d74ef323ad09e5ff1743d7ab43a76d32bbe6a9665a158642866fe2389968aecfae93fc90134ce9b0a8362a92d571f4f0afb5b0c3769

    • C:\Windows\SysWOW64\stnjnthh.exe

      Filesize

      255KB

      MD5

      10628e1628742dc9c4b959acc76fb1b5

      SHA1

      ee16c6b0630143ade393d0cc5320e9d89c0a85bb

      SHA256

      8f3313ee754ddee068facb9c8213de94eba135963023c74811ee8884072cc2f6

      SHA512

      321faea0125b930588bb2d74ef323ad09e5ff1743d7ab43a76d32bbe6a9665a158642866fe2389968aecfae93fc90134ce9b0a8362a92d571f4f0afb5b0c3769

    • C:\Windows\SysWOW64\stnjnthh.exe

      Filesize

      255KB

      MD5

      10628e1628742dc9c4b959acc76fb1b5

      SHA1

      ee16c6b0630143ade393d0cc5320e9d89c0a85bb

      SHA256

      8f3313ee754ddee068facb9c8213de94eba135963023c74811ee8884072cc2f6

      SHA512

      321faea0125b930588bb2d74ef323ad09e5ff1743d7ab43a76d32bbe6a9665a158642866fe2389968aecfae93fc90134ce9b0a8362a92d571f4f0afb5b0c3769

    • C:\Windows\SysWOW64\wccwqowlgntdtpz.exe

      Filesize

      255KB

      MD5

      87644ce332104ea2ec0464ce0b93f729

      SHA1

      8100d78c94bb337a98a677bdd011fac333bf7af8

      SHA256

      8f67994bb6ab2f59d3f58b1b8ce697ac8ba7b905e270398a7591d4fbc90bf714

      SHA512

      c36f8ee7f821bb894010aa41b5316214d35e8d09f23d206fab0c2df50495de7ab8c7c909bb8e20c898d3df8e5b5e637b86c8f1055bd36025ddbedc352d0c806f

    • C:\Windows\SysWOW64\wccwqowlgntdtpz.exe

      Filesize

      255KB

      MD5

      87644ce332104ea2ec0464ce0b93f729

      SHA1

      8100d78c94bb337a98a677bdd011fac333bf7af8

      SHA256

      8f67994bb6ab2f59d3f58b1b8ce697ac8ba7b905e270398a7591d4fbc90bf714

      SHA512

      c36f8ee7f821bb894010aa41b5316214d35e8d09f23d206fab0c2df50495de7ab8c7c909bb8e20c898d3df8e5b5e637b86c8f1055bd36025ddbedc352d0c806f

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\mklhtqjxoi.exe

      Filesize

      255KB

      MD5

      f0132dc8824da1ba6c33684056b97258

      SHA1

      de1c3b1ca0ff40675eaba5579621e124ebff3324

      SHA256

      95fcb87c6c72b16de1eb1778f93fea42fe2d7f686f1a6c0cdeb5c8833da3f476

      SHA512

      2de25ac7c96f9c642e16ff2216e72f8f5edf83cd8a101c57b3d96998494d62e4ce31ea064ffc13179e4b0850f5e86f4fa946d7ac509c7fe56910018bb1f963a7

    • \Windows\SysWOW64\nyncsvmertzuy.exe

      Filesize

      255KB

      MD5

      b77ae8d3bf15e7cb4029e69ac62c7773

      SHA1

      17c0f4f08946db1be1781cbdee13dcf9106c8d8a

      SHA256

      b975aae269a71fb083d939057fd8bfc20f2d211092240f0426c9dd0482de92fe

      SHA512

      cd34a51f886e113616de3784b31ac077828cbbb1a2e68e04ad170aff2f9b3c575ee553376911db8904e5573f62a277b5518b10505a746f1fb900e1036c2d7e1b

    • \Windows\SysWOW64\stnjnthh.exe

      Filesize

      255KB

      MD5

      10628e1628742dc9c4b959acc76fb1b5

      SHA1

      ee16c6b0630143ade393d0cc5320e9d89c0a85bb

      SHA256

      8f3313ee754ddee068facb9c8213de94eba135963023c74811ee8884072cc2f6

      SHA512

      321faea0125b930588bb2d74ef323ad09e5ff1743d7ab43a76d32bbe6a9665a158642866fe2389968aecfae93fc90134ce9b0a8362a92d571f4f0afb5b0c3769

    • \Windows\SysWOW64\stnjnthh.exe

      Filesize

      255KB

      MD5

      10628e1628742dc9c4b959acc76fb1b5

      SHA1

      ee16c6b0630143ade393d0cc5320e9d89c0a85bb

      SHA256

      8f3313ee754ddee068facb9c8213de94eba135963023c74811ee8884072cc2f6

      SHA512

      321faea0125b930588bb2d74ef323ad09e5ff1743d7ab43a76d32bbe6a9665a158642866fe2389968aecfae93fc90134ce9b0a8362a92d571f4f0afb5b0c3769

    • \Windows\SysWOW64\wccwqowlgntdtpz.exe

      Filesize

      255KB

      MD5

      87644ce332104ea2ec0464ce0b93f729

      SHA1

      8100d78c94bb337a98a677bdd011fac333bf7af8

      SHA256

      8f67994bb6ab2f59d3f58b1b8ce697ac8ba7b905e270398a7591d4fbc90bf714

      SHA512

      c36f8ee7f821bb894010aa41b5316214d35e8d09f23d206fab0c2df50495de7ab8c7c909bb8e20c898d3df8e5b5e637b86c8f1055bd36025ddbedc352d0c806f

    • memory/800-83-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/800-92-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/884-84-0x0000000002EE0000-0x0000000002F80000-memory.dmp

      Filesize

      640KB

    • memory/884-55-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/884-54-0x00000000762D1000-0x00000000762D3000-memory.dmp

      Filesize

      8KB

    • memory/884-77-0x0000000002EE0000-0x0000000002F80000-memory.dmp

      Filesize

      640KB

    • memory/884-79-0x0000000002EE0000-0x0000000002F80000-memory.dmp

      Filesize

      640KB

    • memory/884-90-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/892-76-0x000007FEFB581000-0x000007FEFB583000-memory.dmp

      Filesize

      8KB

    • memory/936-95-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/936-87-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1516-88-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1516-96-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1736-80-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1736-94-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1792-102-0x000000007117D000-0x0000000071188000-memory.dmp

      Filesize

      44KB

    • memory/1792-100-0x000000007117D000-0x0000000071188000-memory.dmp

      Filesize

      44KB

    • memory/1792-98-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1792-97-0x0000000070191000-0x0000000070193000-memory.dmp

      Filesize

      8KB

    • memory/1792-91-0x0000000072711000-0x0000000072714000-memory.dmp

      Filesize

      12KB

    • memory/1892-78-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB

    • memory/1892-93-0x0000000000400000-0x00000000004A0000-memory.dmp

      Filesize

      640KB