Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad4620bce81c30a7…

MALICIOUS

PDF

16.1 KB Created: 2019-05-02 17:15:08 +01:00 Authoring application: mPDF 5.7
MD5: 232b795203df4028f212ecff4e18634d SHA-1: a578b64a45bdcc5dcc585bb98de520901cb8c8eb SHA-256: ad4620bce81c30a7e757f92b414c814ecbc7dbff3b7ce995d9bff04e7202a7ec
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded URLs, many of which appear to be part of a link farm. While the specific intent of these links is unclear, the heuristic suggests they are used for SEO manipulation. No scripts were extracted from this sample, limiting the ability to determine a more precise attack pattern or family. The presence of numerous URLs, however, indicates a potential for redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/1095099091099092/Three-by-Tennessee-Sweet-Bird-of-Youth-The-Rose-Tattoo-The-Night-of-the-Iguana-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/3097096095095096/At-Liberty-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/1093099095093093/The-Night-of-the-Iguana-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/3097096095098090/The-Dark-Room-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/4095093094093097/Camino-Real-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/2097094093090099/Orpheus-Descending-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/9099099093096098/A-Streetcar-Named-Desire-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/7091093096098096/A-Streetcar-Named-Desire-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/2099095098093097/Baby-Doll-and-Other-Plays-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/3097096095098096/The-Lady-of-Larkspur-Lotion-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/1099092090095/Tom-The-Unknown-Tennessee-Williams-by-Lyle-Leverich.pdf
    • http://loaminoo.linkpc.net/2090099097099099/Sweet-Bird-of-Youth-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/2093092094091/A-Streetcar-Named-Desire-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/1094098090094/Tennessee-Williams-Mad-Pilgrimage-of-the-Flesh-by-John-Lahr.pdf
    • http://loaminoo.linkpc.net/8097097093094094/Endstation-Sehnsucht-Drama-in-drei-Akten-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/4095093099091090/The-Knightly-Quest-A-Novella-amp-Four-Short-Stories-by-Tennessee-Williams.pdf
    • http://loaminoo.linkpc.net/7093090095092090/Walking-on-Glass-A-Memoir-of-the-Later-Days-of-Tennessee-Williams-by-Scott-Kenan.pdf
    • http://loaminoo.linkpc.net/8091094093096091/Anges-batailleurs-Les-crivains-gays-en-Am-rique-de-Tennessee-Williams-Armistead-Maupin-Essais-Etranger-by-Christopher-Bram.pdf
    • http://loaminoo.linkpc.net/4095092092095095/Living-On-Portraits-of-Tennessee-Survivors-and-Liberators-by-Tennessee-Holocaust-Commission.pdf
    • http://loaminoo.linkpc.net/8092098090099096/Grass-Roof-Tin-Roof-by-Dao-Strom.pdf
    • http://loaminoo.linkpc.net/1099092090095/Tom-The-Unknown-Tennessee-Williams-by-Lyle-Lever

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