Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 09:27

General

  • Target
    2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe
  • Size 195KB
  • Sample240410-lewvmaae69
  • SHA256 baa573f6d713c298d0ea60bc46061491703574460f7bad2c25f53812583bef86
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • phorphiex

C2
  • http://185.215.113.66/

Wallets
  • 0xAa3ea4838e8E3F6a1922c6B67E3cD6efD1ff175b

  • THRUoPK7oYqF7YyKZJvPYwTH35JsPZVPto

  • 1Hw9tx4KyTq4oRoLVhPb4hjDJcLhEa4Tn6

  • qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

  • XtxFdsKkRN3oVDXtN2ipcHeNi87basT2sL

  • LXMNcn9D8FQKzGNLjdSyR9dEM8Rsh9NzyX

  • rwn7tb5KQjXEjH42GgdHWHec5PPhVgqhSH

  • ARML6g7zynrwUHJbFJCCzMPiysUFXYBGgQ

  • 48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

  • 3PL7YCa4akNYzuScqQwiSbtTP9q9E9PLreC

  • 3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3

  • D9AJWrbYsidS9rAU146ifLRu1fzX9oQYSH

  • t1gvVWHnjbGTsoWXEyoTFojc2GqEzBgvbEn

  • bnb1cgttf7t5hu7ud3c436ufhcmy59qnkd09adqczd

  • bc1q0fusmmgycnhsd5cadsuz2hk8d4maausjfjypqg

  • bitcoincash:qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut

  • GAUCC7ZBSU2KJMHXOZD6AP5LOBGKNDPCDNRYP2CO2ACR63YCSUBNT5QE

Signatures

  • Phorphiex

    Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Windows security bypass 2 TTPs 18 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • Windows security modification 2 TTPs 21 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-10_c1c6c2df10c36dfc85d03e1d95b833f2_ryuk.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4864
    • C:\Users\Admin\AppData\Local\Temp\3E51.exe
      "C:\Users\Admin\AppData\Local\Temp\3E51.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4656
      • C:\Users\Admin\AppData\Local\Temp\1845720959.exe
        C:\Users\Admin\AppData\Local\Temp\1845720959.exe
        3⤵
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4536
        • C:\Users\Admin\AppData\Local\Temp\2697426512.exe
          C:\Users\Admin\AppData\Local\Temp\2697426512.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: SetClipboardViewer
          • Suspicious use of WriteProcessMemory
          PID:3800
          • C:\Users\Admin\AppData\Local\Temp\169221283.exe
            C:\Users\Admin\AppData\Local\Temp\169221283.exe
            5⤵
            • Executes dropped EXE
            PID:1716
          • C:\Users\Admin\AppData\Local\Temp\1498124449.exe
            C:\Users\Admin\AppData\Local\Temp\1498124449.exe
            5⤵
            • Executes dropped EXE
            PID:3932
          • C:\Users\Admin\AppData\Local\Temp\1304014847.exe
            C:\Users\Admin\AppData\Local\Temp\1304014847.exe
            5⤵
            • Executes dropped EXE
            PID:3556
          • C:\Users\Admin\AppData\Local\Temp\3134212440.exe
            C:\Users\Admin\AppData\Local\Temp\3134212440.exe
            5⤵
            • Executes dropped EXE
            PID:1228
        • C:\Users\Admin\AppData\Local\Temp\1175519206.exe
          C:\Users\Admin\AppData\Local\Temp\1175519206.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • Drops file in Windows directory
          PID:4176
        • C:\Users\Admin\AppData\Local\Temp\186810776.exe
          C:\Users\Admin\AppData\Local\Temp\186810776.exe
          4⤵
          • Executes dropped EXE
          PID:1032
        • C:\Users\Admin\AppData\Local\Temp\202969185.exe
          C:\Users\Admin\AppData\Local\Temp\202969185.exe
          4⤵
          • Executes dropped EXE
          PID:1424
        • C:\Users\Admin\AppData\Local\Temp\149153970.exe
          C:\Users\Admin\AppData\Local\Temp\149153970.exe
          4⤵
          • Executes dropped EXE
          PID:964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        1[1]

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BI7EUHR7\1[1]
        • Size 85KB
        • SHA256 ecea49f9a754af7055b60a860acfd8ce2bc63048c947c9ee6324f07d45c4787d
        • MD5 SHA1 SHA512 SSDEEP

        3[1]

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BI7EUHR7\3[1]
        • Size 21KB
        • SHA256 dd8f277b22b3da6d4f43af9a5a4bf9515b829d0ffa0a1be6a5ecf5a7e8458b86
        • MD5 SHA1 SHA512 SSDEEP

        2[1]

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\K4KS10IH\2[1]
        • Size 14KB
        • SHA256 4ef8146d85d60c2867bdbe44304b5ba00cceb208f4c10c9f91183308e1da3828
        • MD5 SHA1 SHA512 SSDEEP

        5[1]

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\K4KS10IH\5[1]
        • Size 8KB
        • SHA256 5d9f88fcde1bd7fbe7ecba0dae737da96a55005b0d61c45c4251be0677195299
        • MD5 SHA1 SHA512 SSDEEP

        1175519206.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1175519206.exe
        • Size 14KB
        • SHA256 baa6149b5b917ea3af1f7c77a65e26a34a191a31a9c79726bd60baf4656701fa
        • MD5 SHA1 SHA512 SSDEEP

        149153970.exe

        • Path C:\Users\Admin\AppData\Local\Temp\149153970.exe
        • Size 6KB
        • SHA256 669035f4f05fe6ffc7722987c41f802f3a11298cb3a154b00c4e76df2ae5fe32
        • MD5 SHA1 SHA512 SSDEEP

        1845720959.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1845720959.exe
        • Size 84KB
        • SHA256 98fb81423a107a5359e5fc86f1c4d81ff2d4bc73b79f55a5bf827fdb8e620c54
        • MD5 SHA1 SHA512 SSDEEP

        186810776.exe

        • Path C:\Users\Admin\AppData\Local\Temp\186810776.exe
        • Size 21KB
        • SHA256 c72da8d9d76f3ce218c1e072b6752590c7b9fd977acac39a2f0b88d906fa401d
        • MD5 SHA1 SHA512 SSDEEP

        202969185.exe

        • Path C:\Users\Admin\AppData\Local\Temp\202969185.exe
        • Size 8KB
        • SHA256 9e06f61d715b1b88507e3e70390721ab7ab35d70fe2df6edaaf0e565783e7d2f
        • MD5 SHA1 SHA512 SSDEEP

        2697426512.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2697426512.exe
        • Size 85KB
        • SHA256 80b7e224f28c6160737a313221b9fc94d5f5e933ae1438afef4b5fae33185b2d
        • MD5 SHA1 SHA512 SSDEEP

        3E51.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3E51.exe
        • Size 9KB
        • SHA256 e172537adcee1fcdc8f16c23e43a5ac82c56a0347fa0197c08be979438a534ab
        • MD5 SHA1 SHA512 SSDEEP

        tbtnds.dat

        • Path C:\Users\Admin\tbtnds.dat
        • Size 4KB
        • SHA256 bfcb5f4589729deeeb57b92842933b144322a672cfe3ce11586f1aec83472781
        • MD5 SHA1 SHA512

        tbtnds.dat

        • Path C:\Users\Admin\tbtnds.dat
        • Size 4KB
        • SHA256 3b996ba6306aff70df930eb1f73596c2cad55bc54837fbd337e2c2ae7da0eab6
        • MD5 SHA1 SHA512