Malicious PDF — malware analysis report

Static analysis result for SHA-256 305f29f63590bdc2…

MALICIOUS

PDF

18.5 KB Created: 2019-05-02 05:38:08 +01:00 Authoring application: mPDF 5.7
MD5: 0e03cb99caf3ba693b88ff8ed9ff0534 SHA-1: a7be80520d9cf46c405041230f75f8c9456dc40a SHA-256: 305f29f63590bdc2b11bee6c787d01c91f7ce199bf675570abc312ab5b4a7865
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDFs, forming a link farm. This is indicative of a SEO poisoning or spam campaign, where the goal is to drive traffic to specific URLs. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://xiixmcuin.linkpc.net/7207207201207207/Songs-of-a-Man-Who-Failed-The-Poetical-Writings-of-Henry-Clinton-Parkhurst-Ave-Caesar-Imperator-Morituri-Te-Salutant-by-Henry-Clinton-Parkhurst.pdf
    • http://xiixmcuin.linkpc.net/8204206209204205/My-Life-By-Bill-Clinton-quot-Wo-De-Ren-Sheng-Ke-Lin-Dun-Hui-Yi-Lu-quot-in-Traditional-Chinese-NOT-in-English-by-Bill-Clinton.pdf
    • http://xiixmcuin.linkpc.net/3203203205208200/Here-s-to-You-Zeb-Pike-by-Johanna-Parkhurst.pdf
    • http://xiixmcuin.linkpc.net/2207203205207202/Lost-and-Found-by-Carolyn-Parkhurst.pdf
    • http://xiixmcuin.linkpc.net/1209209200202204/Lorelei-s-Secret-by-Carolyn-Parkhurst.pdf
    • http://xiixmcuin.linkpc.net/9208205204201209/The-Turn-of-the-Screw-by-Henry-James-Illustrated-Delphi-Parts-Edition-Henry-James-by-Henry-James.pdf
    • http://xiixmcuin.linkpc.net/6200207208202203/Orpheus-Britannicus-A-Collection-of-All-the-Choicest-Songs-for-One-Two-and-Three-Voices-by-Henry-Purcell.pdf
    • http://xiixmcuin.linkpc.net/2208207202203204/Civil-Disobedience-And-Other-Political-Writings-by-Henry-David-Thoreau.pdf
    • http://xiixmcuin.linkpc.net/7201201205201/Walden-Civil-Disobedience-And-Other-Writings-by-Henry-David-Thoreau.pdf
    • http://xiixmcuin.linkpc.net/3209200203207207/You-re-Still-The-One-NYC-Singles-1-by-Sasha-Clinton.pdf
    • http://xiixmcuin.linkpc.net/2200207201201207/Totally-God-s-by-Megan-Clinton.pdf
    • http://xiixmcuin.linkpc.net/2202209206204205/Bill-Clinton-and-Me-by-Rush-Limbaugh.pdf
    • http://xiixmcuin.linkpc.net/3206200204204204/Crossing-the-Line-by-Clinton-McKinzie.pdf
    • http://xiixmcuin.linkpc.net/3206200206203208/The-Edge-of-Justice-by-Clinton-McKinzie.pdf
    • http://xiixmcuin.linkpc.net/1201204207206202202/The-President-Is-Missing-by-Bill-Clinton.pdf
    • http://xiixmcuin.linkpc.net/7200208208204200/The-Souterrains-of-Ireland-by-Mark-Clinton.pdf
    • http://xiixmcuin.linkpc.net/1206202201203/Generations-of-Men-by-John-Clinton-Hunt.pdf
    • http://xiixmcuin.linkpc.net/8204204203208205/Song-of-the-Cinder-by-Clinton-A-Harris.pdf
    • http://xiixmcuin.linkpc.net/2205201203203200/Henry-VIII-s-Wives-The-Story-of-Henry-s-six-queens-by-Alison-Prince.pdf
    • http://xiixmcuin.linkpc.net/3203209205205208/Young-Henry-The-Rise-of-Henry-VIII-by-Robert-Hutchinson.pdf
    • http://xiixmcuin.linkpc.net/920

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