Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db8b23b567c52c3…

MALICIOUS

PDF

20.7 KB Created: 2019-04-30 03:45:02 +01:00 Authoring application: mPDF 5.7
MD5: 2906cb789f56208c2cd68ba8ab6626a8 SHA-1: 4b99671f6cdb692922b9ccc47e85950c8351a0f8 SHA-256: 6db8b23b567c52c301b1fcfe549b614479f452cc939cb72aeaab5523d76a8067
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, many of which are disguised as book titles, suggesting a link farm or SEO spamming attempt. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs are the primary IOCs, and the attack pattern is likely to direct users to potentially malicious or unwanted content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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/3092094098097095/No-Such-Thing-As-A-Secret-A-Brandy-Alexander-Mystery-1-by-Shelly-Fredman.pdf
    • http://loaminoo.linkpc.net/3092094098098090/No-Such-Thing-as-a-Lost-Cause-A-Brandy-Alexander-Mystery-5-by-Shelly-Fredman.pdf
    • http://loaminoo.linkpc.net/3093091094096095/Good-Thing-Bad-Thing-50-Reasons-3-by-Nick-Alexander.pdf
    • http://loaminoo.linkpc.net/3097095094095092/Trace-Their-Shadows-Brandy-O-Bannon-Mystery-1-by-Ann-Turner-Cook.pdf
    • http://loaminoo.linkpc.net/3093092099092091/Every-Secret-Thing-by-Emma-Cole.pdf
    • http://loaminoo.linkpc.net/5091096097097099/Every-Secret-Thing-by-Marie-Munkara.pdf
    • http://loaminoo.linkpc.net/8099091090098/Gloria-s-Secret-Cat-Island-2-by-Robin-Alexander.pdf
    • http://loaminoo.linkpc.net/1091098091097093/The-Secret-Journal-of-Alexander-Mackenzie-by-Brian-Fawcett.pdf
    • http://loaminoo.linkpc.net/6092090090097097/The-Mystery-of-the-Shemitah-Updated-Edition-The-3-000-Year-Old-Mystery-That-Holds-the-Secret-of-America-s-Future-the-World-s-Future-and-Your-Future-by-Jonathan-Cahn.pdf
    • http://loaminoo.linkpc.net/1096098093098094/There-s-No-Such-Thing-as-Free-Speech-And-It-s-a-Good-Thing-Too-by-Stanley-Fish.pdf
    • http://loaminoo.linkpc.net/3098094096099098/24-1-Christmas-Tales-Butterfly-Adventures-in-Santa-s-Secret-City-by-Alexander-Ruth.pdf
    • http://loaminoo.linkpc.net/5097094099094092/Rhinoceros-Success-The-Secret-to-Charging-Full-Speed-Toward-Every-Opportunity-by-Scott-Alexander.pdf
    • http://loaminoo.linkpc.net/1091094096094096097/The-Pint-of-No-Return-A-Sloan-Krause-Mystery-2-by-Ellie-Alexander.pdf
    • http://loaminoo.linkpc.net/3095097098098092/The-Key-to-the-Ranch-An-Alexander-Wright-Mystery-Adventure-6-by-William-L-Mansfield.pdf
    • http://loaminoo.linkpc.net/1090099093091094091/Jump-City-Tractus-Fynn-Mystery-Book-2-by-M-K-Alexander.pdf
    • http://loaminoo.linkpc.net/6095091095096096/A-Crime-of-Passion-Fruit-Bakeshop-Mystery-6-by-Ellie-Alexander.pdf
    • http://loaminoo.linkpc.net/3092092090092093/A-Murder-in-Thebes-Mystery-of-Alexander-the-Great-2-by-Anna-Apostolou.pdf
    • http://loaminoo.linkpc.net/2092098097097090/Murder-At-The-Carousel-Club-A-Matthew-Alexander-Mystery-by-Barbara-Fleming.pdf
    • http://loaminoo.linkpc.net/1092095094093093/The-Secret-Seacliff-High-Mystery-1-by-Kathi-Daley.pdf
    • http://loaminoo.linkpc.net/3096099092095093/English-Lit-Relit-A-Short-History-of-English-Literature-from-the-Precursors-Before-Swearing-to-the-Pre-Raphaelites-and-a-Little-After-Intended-to-Help-Students-See-the-Thing-Through-or-See-Through-the-Thing-and-Omitting-Nothing-Unimportant-by-Richard-Armour.pdf