Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d51e236dc45006f…

MALICIOUS

PDF

13.9 KB Created: 2019-04-30 04:08:35 +01:00 Authoring application: mPDF 5.7
MD5: 0a2ce04b229edb240de0e8184ab6c0f1 SHA-1: 1fe1b0a2f4d5f19902063c2e26fadb27832cb340 SHA-256: 7d51e236dc45006f2fe7f19b13af76ebba4ed7bb82788eab6c50038513168187
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link farming.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/5098096099097091/Caf-des-Artistes-by-John-Hartley-Williams.pdf
    • http://loaminoo.linkpc.net/5098097090090092/Les-Artistes-by-ch-Braquehaye.pdf
    • http://loaminoo.linkpc.net/5098096099090090/The-Variety-Artistes-by-Tom-Wakefield.pdf
    • http://loaminoo.linkpc.net/5098096098099097/Artistes-Sans-Oeuvres-I-Would-Prefer-Not-To-by-Jean-Yves-Jouannais.pdf
    • http://loaminoo.linkpc.net/4091097097098097/The-Man-Who-Cried-I-Am-A-Novel-by-John-A-Williams.pdf
    • http://loaminoo.linkpc.net/8090096097090/WALKAWAY730-by-John-Williams-III.pdf
    • http://loaminoo.linkpc.net/3090099096094/Augustus-by-John-Williams.pdf
    • http://loaminoo.linkpc.net/8093090098095/Stoner-by-John-Williams.pdf
    • http://loaminoo.linkpc.net/1091092094093098095/Nothing-But-the-Night-by-John-Williams.pdf
    • http://loaminoo.linkpc.net/4098096097095098/Clifford-s-Blues-A-Novel-by-John-A-Williams.pdf
    • http://loaminoo.linkpc.net/1090095099097094090/Sam-Houston-by-John-Hoyt-Williams.pdf
    • http://loaminoo.linkpc.net/5098098093094090/Captain-Blackman-by-John-A-Williams.pdf
    • http://loaminoo.linkpc.net/9094097092098094/Bruxelles-Colonie-D-Artistes-Peintres-Hollandais-1850-1890-by-Saskia-De-Bodt.pdf
    • http://loaminoo.linkpc.net/5097097094095090/Hub-Fans-Bid-Kid-Adieu-John-Updike-on-Ted-Williams-by-John-Updike.pdf
    • http://loaminoo.linkpc.net/1091092092095091094/Sayuri-s-Theme-And-End-Credits-by-John-Williams.pdf
    • http://loaminoo.linkpc.net/6092092092099091/What-Is-Existence-by-Christopher-John-Fards-Williams.pdf
    • http://loaminoo.linkpc.net/1094098090094/Tennessee-Williams-Mad-Pilgrimage-of-the-Flesh-by-John-Lahr.pdf
    • http://loaminoo.linkpc.net/6092096095098/Red-Men-Liverpool-Football-Club-The-Biography-by-John-Williams.pdf
    • http://loaminoo.linkpc.net/2093096092095/George-Washington-Williams-A-Biography-by-John-Hope-Franklin.pdf
    • http://loaminoo.linkpc.net/3090094095097/Roger-Williams-and-the-Creation-of-the-American-Soul-by-John-M-Barry.pdf

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