Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ae18855b2e8414d…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 04:53:09 +01:00 Authoring application: mPDF 5.7
MD5: 08af5e790abb785f1f1ccf3dcb985b1d SHA-1: 25b42eb05a303584ad133b634ea627eac7c3359c SHA-256: 4ae18855b2e8414da58b879015624376f6cd61c4563b608331298ee2f2c6c713
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the PDF structure and link farm indicate a likely attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/9096097097094093/Dolwyddelan-Castle---Dolbadarn-Castle---Castell-Y-Bere-by-Richard-Avent.pdf
    • http://loaminoo.linkpc.net/6091090093096092/Temp-te-de-Feu-by-Richard-Castle.pdf
    • http://loaminoo.linkpc.net/5092093095097093/Honeymoon-To-Die-For-Slye-Temp-2-by-Dianna-Love.pdf
    • http://loaminoo.linkpc.net/2090091095096098/Alan-Lennox-and-the-Temp-Job-of-Doom-The-Future-Next-Door-1-by-Brian-Olsen.pdf
    • http://loaminoo.linkpc.net/4092095093099/Heat-Wave-Nikki-Heat-1-by-Richard-Castle.pdf
    • http://loaminoo.linkpc.net/3090093097091094/Naked-Heat-Nikki-Heat-2-by-Richard-Castle.pdf
    • http://loaminoo.linkpc.net/1096095096097092/Castle-in-the-Air-Howl-s-Moving-Castle-2-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/2094092098094094/The-Battle-for-the-Castle-The-Castle-in-the-Attic-2-by-Elizabeth-Winthrop.pdf
    • http://loaminoo.linkpc.net/5095091090090093/Castle-Bleu-Volume-1-The-Castle-Bleu-Series-1-by-Mystie-Tempest.pdf
    • http://loaminoo.linkpc.net/6094092092099/Castle-Waiting-Vol-2-Castle-Waiting-Omnibus-Collection-2-by-Linda-Medley.pdf
    • http://loaminoo.linkpc.net/3097090099093099/The-Castle-The-Castle-1-by-N-T-Morley.pdf
    • http://loaminoo.linkpc.net/6093090091098/Len-Castle-Potter-by-Len-Castle.pdf
    • http://loaminoo.linkpc.net/1090091093095093092/Ort-in-Berlin-Berlin-Schoneberg-Liste-Der-Bezirke-Und-Ortsteile-Berlins-Berlin-Kreuzberg-Bezirk-Tempelhof-Schoneberg-Berlin-Temp-by-Quelle-Wikipedia.pdf
    • http://loaminoo.linkpc.net/2094090094094092/The-Castle-in-the-Attic-The-Castle-in-the-Attic-1-by-Elizabeth-Winthrop.pdf
    • http://loaminoo.linkpc.net/4098093099093097/Castle-of-Shadows-Castle-of-Shadows-1-by-Ellen-Renner.pdf
    • http://loaminoo.linkpc.net/1091097091095092095/Castle-Phantasie-Boxed-Set-Castle-Phantasie-1-3-by-Kit-Kyndall.pdf
    • http://loaminoo.linkpc.net/6098090092090098/Works-by-Richard-Matheson-Novels-by-Richard-Matheson-Screenplays-by-Richard-Matheson-Short-Stories-by-Richard-Matheson-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/3099091095091097/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/4095095092093091/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/4091091098092/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf

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