Analysis

  • max time kernel
    47s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    01/03/2023, 14:21

General

  • Target
    8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede.exe
  • Size 75KB
  • Sample230301-rpcgmage43
  • SHA256 8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Path
  • C:\Users\Admin\Desktop\README_TO_DECRYPT.html

Ransom Note
  • ALL YOUR DATA IS ENCRYPTED by QUANTUM What happened? All your files are encrypted on all devices across the network Huge volume of your data including financial, customer, partner and employees data was downloaded to our internal servers What's next? If you don't get in touch with us next 48 hours, we'll start publishing your data to the Data Leaks Portal How do I recover? There is no way to decrypt your files manually unless we provide a special decryption tool Please download TOR browser and CONTACT US for further instructions Hours Minutes Seconds

Signatures

  • Quantum Ransomware

    A rebrand of the MountLocker ransomware first seen in August 2021.

  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 26 IoCs
  • Modifies Internet Explorer settings 1 TTPs 33 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 10 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede.exe
    "C:\Users\Admin\AppData\Local\Temp\8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\\006C3026.bat" "C:\Users\Admin\AppData\Local\Temp\8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede.exe""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\8fe49892d510470e049d8c2e5523fa1841b20ccc89406fd91055950f90a5eede.exe"
        3⤵
        • Views/modifies file attributes
        PID:1448
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\README_TO_DECRYPT.html
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1376 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:572

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 61KB
        • SHA256 95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72
        • MD5 SHA1 SHA512 SSDEEP

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 542268efcdd81712487f1d2b687ed287e4f53db4f07bbc365ea2b62245129fcd
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 450afba24e22679b220254dd3d8759e2e785884b1b12614bc1133cc09e4a5961
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 28d1eba81fec81566b6b3f9672b23857a67dc9135ec754a0bfc043731192515b
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 daa1c009c15da89a5191c4cfea9f503824f24d1d6c1b79f010c4dc4a46423cf5
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 5ea81687bf37c135f30def207927f2b9d5ce40daac9491fed029e0d1c4e7b0a4
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 115aa60bfeda2a0c78a15bb38719abcbdc255568037fd1ff8e62c3dd13bc19fe
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 a4ec5ad6d46f5b677942827f8c53e69bcea13e1f58b2832e9159d6f4baaecc1d
        • MD5 SHA1 SHA512

        006C3026.bat

        • Path C:\Users\Admin\AppData\Local\Temp\006C3026.bat
        • Size 65B
        • SHA256 c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506
        • MD5 SHA1 SHA512

        006C3026.bat

        • Path C:\Users\Admin\AppData\Local\Temp\006C3026.bat
        • Size 65B
        • SHA256 c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506
        • MD5 SHA1 SHA512

        Cab7534.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab7534.tmp
        • Size 61KB
        • SHA256 10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
        • MD5 SHA1 SHA512 SSDEEP

        Tar75D3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar75D3.tmp
        • Size 161KB
        • SHA256 c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd
        • MD5 SHA1 SHA512 SSDEEP

        Tar7655.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar7655.tmp
        • Size 161KB
        • SHA256 1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd
        • MD5 SHA1 SHA512 SSDEEP

        README_TO_DECRYPT.html

        • Path C:\Users\Admin\Desktop\README_TO_DECRYPT.html
        • Size 7KB
        • SHA256 37eed59e2b19bb813a295ceaf81f44d2d163c9a43846c87d632fa4743ea42d9c
        • MD5 SHA1 SHA512 SSDEEP

        README_TO_DECRYPT.html

        • Path C:\Users\Admin\Desktop\README_TO_DECRYPT.html
        • Size 7KB
        • SHA256 37eed59e2b19bb813a295ceaf81f44d2d163c9a43846c87d632fa4743ea42d9c
        • MD5 SHA1 SHA512 SSDEEP

        memory/572-305-0x0000000002AE0000-0x0000000002AE2000-memory.dmp

        memory/1376-304-0x0000000002750000-0x0000000002760000-memory.dmp