Malicious PDF — malware analysis report

Static analysis result for SHA-256 380d5b7a777eeb6c…

MALICIOUS

PDF

20.9 KB Created: 2019-04-30 18:45:27 +01:00 Authoring application: mPDF 5.7
MD5: 8debd1ccf495c400a510e08572544956 SHA-1: a92b64bc88b25802c331241a5adffdd7aa153fbd SHA-256: 380d5b7a777eeb6c608404f9a5a9187e5ef266e1717cdba05e3766d383802b7e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which are presented as links to book titles. While most of these URLs were classified as benign, the sheer volume and the nature of the heuristic firing suggest a potential attempt to direct users to malicious content or to manipulate search engine results. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://unieoooq.linkpc.net/14e14e54e84e34e64e3/A-Spy-Called-James-The-True-Story-of-James-Armistead-Lafayette-Revolutionary-War-Double-Agent-by-Anne-Rockwell.pdf
    • http://unieoooq.linkpc.net/34e84e44e74e24e2/Codename-Tricycle-The-true-story-of-the-Second-World-War-s-most-extraordinary-double-agent-by-Russell-Miller.pdf
    • http://unieoooq.linkpc.net/74e44e44e84e4/The-True-Story-of-Lilli-Stubeck-by-James-Aldridge.pdf
    • http://unieoooq.linkpc.net/14e04e24e44e54e1/The-True-Story-of-Spit-Mac-Phee-by-James-Aldridge.pdf
    • http://unieoooq.linkpc.net/14e44e34e64e84e0/Flyboys-A-True-Story-of-Courage-by-James-D-Bradley.pdf
    • http://unieoooq.linkpc.net/34e34e84e04e14e6/For-Liberty-and-Glory-Washington-Lafayette-and-Their-Revolutions-by-James-R-Gaines.pdf
    • http://unieoooq.linkpc.net/14e04e24e54e74e04e3/Banned-on-the-Hill-A-True-Story-about-Dirty-Oil-and-Government-Censorship-by-Franke-James.pdf
    • http://unieoooq.linkpc.net/14e14e44e64e04e34e8/Sniper-The-True-Story-of-Anti-Abortion-Killer-James-Kopp-by-Jon-Wells.pdf
    • http://unieoooq.linkpc.net/54e94e24e04e34e1/Blindsided-The-True-Story-of-One-Man-s-Crusade-Against-Chemical-Giant-DuPont-for-a-Boy-with-No-Eyes-by-James-L-Ferraro.pdf
    • http://unieoooq.linkpc.net/14e04e64e64e94e14e9/The-True-Story-of-Andersonville-Prison-A-Defense-of-Major-Henry-Wirz-by-James-Madison-Page.pdf
    • http://unieoooq.linkpc.net/44e84e64e54e64e3/Death-on-the-Barrens-A-True-Story-of-Courage-and-Tragedy-in-the-Canadian-Arctic-by-George-James-Grinnell.pdf
    • http://unieoooq.linkpc.net/34e54e84e44e44e6/A-Dog-Called-Perth-The-True-Story-of-a-Beagle-by-Peter-Martin.pdf
    • http://unieoooq.linkpc.net/24e54e44e84e94e6/Agent-Zigzag-A-True-Story-of-Nazi-Espionage-Love-and-Betrayal-by-Ben-Macintyre.pdf
    • http://unieoooq.linkpc.net/34e84e54e74e04e0/Hunting-Season-The-Execution-of-James-Foley-Islamic-State-and-the-Real-Story-of-the-Kidnapping-Campaign-that-Started-a-War-by-James-Harkin.pdf
    • http://unieoooq.linkpc.net/24e44e94e74e14e9/They-Called-Her-Reckless-A-True-Story-of-War-Love-And-One-Extraordinary-Horse-by-Janet-Barrett.pdf
    • http://unieoooq.linkpc.net/14e04e54e84e14e54e5/A-Man-Called-Rasmus-by-JAMES-T-BORN.pdf
    • http://unieoooq.linkpc.net/84e44e64e14e1/Young-Mandela-The-Revolutionary-Years-by-David-James-Smith.pdf
    • http://unieoooq.linkpc.net/24e54e24e14e74e8/Double-Indemnity-by-James-M-Cain.pdf
    • http://unieoooq.linkpc.net/64e14e94e54e64e8/Double-Cross-by-James-Patterson.pdf
    • http://unieoooq.linkpc.net/34e44e34e14e7/Double-Indemnity-by-James-M-Cain.pdf
    • http://unieoooq.linkpc.net/14e14e44e64e04e34e8/Sniper-The-True-Story-of-Anti-Ab