Resubmissions

17/05/2024, 14:06

240517-reh7esbc8310

17/05/2024, 14:05

240517-rdxnesbb2x10

17/05/2024, 14:04

240517-rdkc4aba9110

17/05/2024, 14:00

240517-raznlsbc3310

09/01/2022, 14:18

220109-rl99gsdee210

Analysis

  • max time kernel
    18s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    17/05/2024, 14:00

General

  • Target
    00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
  • Size 66KB
  • Sample240517-raznlsbc33
  • SHA256 00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • MountLocker Ransomware

    Ransomware family first seen in late 2020, which threatens to leak files if ransom is not paid.

  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 32 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
    "C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\\0F762887.bat" "C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe"
        3⤵
        • Views/modifies file attributes
        PID:844
  • C:\Windows\explorer.exe
    "explorer.exe" RecoveryManual.html
    1⤵
      PID:1860
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\RecoveryManual.html
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2256 CREDAT:275457 /prefetch:2
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:480

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          RecoveryManual.html

          • Path C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\RecoveryManual.html
          • Size 2KB
          • SHA256 91ed41131103b4c1801eeb9245bb38c440dd8fe615145810da01b3c2941a7ee9
          • MD5 SHA1 SHA512

          3C428B1A3E5F57D887EC4B864FAC5DCC

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C428B1A3E5F57D887EC4B864FAC5DCC
          • Size 914B
          • SHA256 cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
          • Size 68KB
          • SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
          • MD5 SHA1 SHA512 SSDEEP

          F0ACCF77CDCBFF39F6191887F6D2D357

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
          • Size 1KB
          • SHA256 df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
          • MD5 SHA1 SHA512

          3C428B1A3E5F57D887EC4B864FAC5DCC

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C428B1A3E5F57D887EC4B864FAC5DCC
          • Size 252B
          • SHA256 df9c5aa63568b4e0cebf96606dd819caafa6b1f9e9955d2fb6063e71879c6189
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 8fe17841d9fd01784a19fc680ef4e0f522ffc9424cfbbba8a50399b5333e6057
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 51fecef5b41ade4cd1b85fdfcff1fc9eb60d862ae52845bb10b756058aef8511
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 f54a4fde1d04abfafd0168a81aff63b05fd3ed624c00897864ac1366b479b4f2
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 c483be39b97c13225090b51f233eed1b1cb898ca9f148b8cd5bd00e8732b5b5b
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 e3485c035e6ea42d7d7fcf8036525293a1a9f56f7612ea6960afbc2c08321b28
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 731a79d04741e294c98bb83e46c56887b1407dab968d028a686f2daaff11cd79
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 bf3ff869b4173380e401f473ff0dadd02101cd6eee79acff30db45361784e862
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 f92bd86de7e61cdf5a9faa309176be71663106dc4d07441cd2a7781b716922f6
          • MD5 SHA1 SHA512

          94308059B57B3142E455B38A6EB92015

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          • Size 344B
          • SHA256 a8070623ad04c4305140a5521ddcc6b8174dfaeb02b97c834246bccc56f59b24
          • MD5 SHA1 SHA512

          F0ACCF77CDCBFF39F6191887F6D2D357

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
          • Size 242B
          • SHA256 1f8488ea33c6bb25f47e4a4ac48c0ae8a9607449e1e9162b453268c32e63322f
          • MD5 SHA1 SHA512

          0F762887.bat

          • Path C:\Users\Admin\AppData\Local\Temp\0F762887.bat
          • Size 65B
          • SHA256 c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506
          • MD5 SHA1 SHA512

          Tar4F4E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\Tar4F4E.tmp
          • Size 177KB
          • SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
          • MD5 SHA1 SHA512 SSDEEP