Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/02/2023, 12:11

General

  • Target
    http://185.215.113.66/pei.exe
  • Sample230206-pcltesdg69

Malware Config

Extracted

Family
  • phorphiex

C2
  • http://185.215.113.66/

Wallets
  • 1Gpu5QiBqsquu71AGqHwb4Y68iwnkdGH1k

  • 3PPJU1omRSTwxDbbfVyxh9Mm8WkiMGZviMh

  • 37AcEVDyoPyUJUKNM3mM1UxNNvKgN6Abn5

  • qqlt9zzv020vtlswk5v6e90nv7hsuqz0nggp4rj5t0

  • Xj6orHUgmtZtPb2wGSTX2reQZJ89ZeeYYG

  • DRyZQqRX998DYdf7zGdTCShGcRBbxjUAbF

  • 0x25229D09B0048F23e60c010C8eE1ae65C727e973

  • LhoapQ1TFjG2Fvbwn5WbM2wYcwisKRVz7x

  • r3j2xjQLmVa6Cg3cHZLqLNVja1x6g1AtNL

  • TVTrpva4J2g8SENebPar4YnfnCqwUeiX4a

  • t1MrdY4n3DBL3uip5Pq6tqx4doYpihJJG68

  • AXUqtUXyQmU8buqL5ehCLuLLHhhFrREXuw

  • bitcoincash:qqlt9zzv020vtlswk5v6e90nv7hsuqz0nggp4rj5t0

  • 48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg

  • GDX4NDGHA5WKQLOI65PKPZRHSN6ZAUBRHA7BL44O5IOVMMZFZISMHTUD

  • bnb1zm5y3pns0ertprnvdyulz63tenlp9kc4m78v0m

  • bc1qdk0fquc7ug2zn7zpdyx4kasdy34t00c5r2xdup

Signatures

  • Phorphiex

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

  • Windows security bypass 2 TTPs 6 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://185.215.113.66/pei.exe
    1⤵
    • Modifies Internet Explorer Phishing Filter
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3464 CREDAT:17410 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2584
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZX6MAMIN\pei.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZX6MAMIN\pei.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3232
      • C:\Users\Admin\AppData\Local\Temp\3120427920.exe
        C:\Users\Admin\AppData\Local\Temp\3120427920.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2816
        • C:\Windows\sysagrsv.exe
          C:\Windows\sysagrsv.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Suspicious use of WriteProcessMemory
          PID:5112
          • C:\Users\Admin\AppData\Local\Temp\3117114989.exe
            C:\Users\Admin\AppData\Local\Temp\3117114989.exe
            5⤵
            • Executes dropped EXE
            PID:2192
          • C:\Users\Admin\AppData\Local\Temp\101795949.exe
            C:\Users\Admin\AppData\Local\Temp\101795949.exe
            5⤵
            • Executes dropped EXE
            PID:1484

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        pei.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZX6MAMIN\pei.exe
        • Size 6KB
        • SHA256 959ed7f57b49523114b54616f2f5bdb40c78cd1fcf8f506d3bc3721e833cee03
        • MD5 SHA1 SHA512 SSDEEP

        pei.exe.7ihh1jq.partial

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZX6MAMIN\pei.exe.7ihh1jq.partial
        • Size 6KB
        • SHA256 959ed7f57b49523114b54616f2f5bdb40c78cd1fcf8f506d3bc3721e833cee03
        • MD5 SHA1 SHA512 SSDEEP

        101795949.exe

        • Path C:\Users\Admin\AppData\Local\Temp\101795949.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP

        101795949.exe

        • Path C:\Users\Admin\AppData\Local\Temp\101795949.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP

        3117114989.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3117114989.exe
        • Size 6KB
        • SHA256 6bc23b9878978a2f3c507acfdad0b2244a8bda5143359613db039cb21d9c1228
        • MD5 SHA1 SHA512 SSDEEP

        3117114989.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3117114989.exe
        • Size 6KB
        • SHA256 6bc23b9878978a2f3c507acfdad0b2244a8bda5143359613db039cb21d9c1228
        • MD5 SHA1 SHA512 SSDEEP

        3120427920.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3120427920.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP

        3120427920.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3120427920.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP

        sysagrsv.exe

        • Path C:\Windows\sysagrsv.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP

        sysagrsv.exe

        • Path C:\Windows\sysagrsv.exe
        • Size 75KB
        • SHA256 e0ac6b5de69220016ae30e12a499cd7e0002ab66942203376a0bb97b1790ad70
        • MD5 SHA1 SHA512 SSDEEP