Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 09:16

General

  • Target

    62fe9d2c77ee83b54825db454d7356d9.exe

  • Size

    512KB

  • MD5

    62fe9d2c77ee83b54825db454d7356d9

  • SHA1

    a1d19e6312f0998696a48161a5088f306b95070e

  • SHA256

    b4d6677a0065d663d67af4914e0143ec2728de280c272127ca626e0c5e343641

  • SHA512

    564ccb681b71112ffef754dd8061606903ae4ddc2b34a52f98f3a14db7b92e191695bd4203f4815e221ed634a196a64ad07a25455ba537200c0fddb99655df2c

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6J:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5s

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 6 IoCs
  • Loads dropped DLL 6 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 3 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 8 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 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62fe9d2c77ee83b54825db454d7356d9.exe
    "C:\Users\Admin\AppData\Local\Temp\62fe9d2c77ee83b54825db454d7356d9.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:1688
    • C:\Windows\SysWOW64\zqavidnrhx.exe
      zqavidnrhx.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:2756
      • C:\Windows\SysWOW64\tnruczuu.exe
        C:\Windows\system32\tnruczuu.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:2636
    • C:\Windows\SysWOW64\gevurmymqopckzm.exe
      gevurmymqopckzm.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c kmawavdmduhmd.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1804
    • C:\Windows\SysWOW64\tnruczuu.exe
      tnruczuu.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:2708
    • C:\Windows\SysWOW64\kmawavdmduhmd.exe
      kmawavdmduhmd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2596
    • 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:2420
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:592
    • C:\Windows\SysWOW64\kmawavdmduhmd.exe
      kmawavdmduhmd.exe
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2560

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      512KB

      MD5

      4cd6464f70cb1b48efb00394642d2d61

      SHA1

      baa5859b12b960d29930fae2d41568d09e8fae10

      SHA256

      7ca0034761fa1b8bd3a6835ef3d9951dd073181223ae6a79af9773cc9cbc8a9a

      SHA512

      c3008447d17ffdfe3eae2d46661b4d4021a57de19fe76681a94c3fef6b026f90a0f1ab3061218429eebe10d261ac003700d79434922b146ef360328849bc643b

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

      Filesize

      512KB

      MD5

      c0fcf9c576fe2a50d3efd7858496b2ee

      SHA1

      c0aa2e5c62ce15721d78b6788a6ca2f438a3d767

      SHA256

      ef8eaf413b473744048753c2886a4a32cc1b443f5081e7a6ab56a8adca8b811a

      SHA512

      e867f95062ac45aac0bae0a7baf2085084bb860b081adbd497000901489b1736ee9c80b87c4a428189338ff31d3bae1048e9d8d19770142e65d4c42921702e73

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      b6b7aa2a89dbd021e77e1d62cadfd067

      SHA1

      32d3705e785273f99ada5949d2d0bc548afc5adf

      SHA256

      72443903e72eebd409e9907a8ca3857b5d958de3511609dcd08d2304bd6b24ca

      SHA512

      a38db67b632c8c9ea2b61ba8f1a4ea91008295f80bd9d82dffd08160f39533f68e4cc9902416efc51dfcab336c9e3a14d97a00e82e46492028dd345559e53379

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

      Filesize

      512KB

      MD5

      5de43de50ab858b90e4774fbedb14d3b

      SHA1

      180166cf3fea367d2a0dfa8524b84edfe3404265

      SHA256

      e5d4be34b000ae148ea073a0be815d9a6202c3d8fe0438e038e348056909fea0

      SHA512

      aeb1ec35bd2a0cd05679f44649acfb104a5e58119a4fce44a811a626d82d50ca24cbdf1b935659b568a6e64008964e5d1d99e7dfdf45e693f806c6ab0393efb2

    • C:\Windows\SysWOW64\gevurmymqopckzm.exe

      Filesize

      512KB

      MD5

      8f10abc75625b304c0fbffe0cdabaf21

      SHA1

      d8670c26c31fe35f1ca54f2c9f12c860cec8d9c6

      SHA256

      7a8073e0b33911d9b80c112e2801de9f2b71cf2ca610a9dbe780802385836483

      SHA512

      6d082181630e237c87bcea6c1f8299f6a0f34f696e3b78e69ea7e849dd1316c3676d48432db51da7b1de90a8d4c8b78a7d1dcdb9a07940211fbc9bc343dbc678

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\kmawavdmduhmd.exe

      Filesize

      512KB

      MD5

      a5d8f705e3d968c317bd87ced06ad686

      SHA1

      1ccaa3a8042193e119d568bfb08600d75b8ff9ca

      SHA256

      f0126781928ea11d41e260cc04bead1e4b113751fd9fffb7ab15e79336d74af1

      SHA512

      49d8d4ae5a43c5aced9e69dd728d83816efae1149e1bfc52d55123aac9ea4d3ade642de42987ef46d2dd8940e9fd07e89002fa46a0a0ae4eaca0cc22ed201de8

    • \Windows\SysWOW64\tnruczuu.exe

      Filesize

      512KB

      MD5

      17b1c4b10e3dab0b6597a3cf0cf705ab

      SHA1

      df2c7f6e9245c71d4b1795f8459d811f4d5edb2f

      SHA256

      6ff9db29a77e8513d632d4b11011d9c724a0d5a1f187fc47f350b8a34fa5711c

      SHA512

      7a2858f372760cc56a8fc49edaafdac0fd64d28bee69662173d20f86b9b17f4591275834096b37e86b5d9f4001cb2ca58afe33e472c4b83bdd1118f864da3219

    • \Windows\SysWOW64\zqavidnrhx.exe

      Filesize

      512KB

      MD5

      f01dc04b96bd64f80008ff9d6e278701

      SHA1

      d64a4818d5e1f6e228dad61adb3ba3cc12a8f783

      SHA256

      5d3fc8572a42cf333b5be70e7ac1e3a6b686b72ce343f54cd8b90d805dd16e81

      SHA512

      b2975e5199cf8ef3daaef7ca22eca2f2e41edb212b2c2503a1534f530aa428312bf57b6722ffc2b515ca2756dd3e004a21247ef0bd203c8015de76373288af06

    • memory/1688-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2420-49-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2420-50-0x000000007130D000-0x0000000071318000-memory.dmp

      Filesize

      44KB

    • memory/2420-69-0x000000007130D000-0x0000000071318000-memory.dmp

      Filesize

      44KB

    • memory/2420-48-0x000000002F711000-0x000000002F712000-memory.dmp

      Filesize

      4KB

    • memory/2420-113-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2420-114-0x000000007130D000-0x0000000071318000-memory.dmp

      Filesize

      44KB