Malicious PDF — malware analysis report

Static analysis result for SHA-256 b16aa1aa41b7ac78…

MALICIOUS

PDF

22.9 KB Created: 2019-05-01 08:08:02 +01:00 Authoring application: mPDF 5.7
MD5: d92dfac5f48d629b69c6e3e88890e475 SHA-1: 2ee7df71b47dacd9fec01a288c14647b65009354 SHA-256: b16aa1aa41b7ac787e705d460ee116acf7fecaba978390c24eec6472d0c2e5fc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. The embedded URLs, such as http://loaminoo.linkpc.net/1090096099099095095/Blow-Him-Away-As-Escort-s-Guide-to-Giving-Exceptional-Head-by-Alanna.pdf, are likely used to direct users to malicious content or for SEO manipulation. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/1090096099099095095/Blow-Him-Away-As-Escort-s-Guide-to-Giving-Exceptional-Head-by-Alanna.pdf
    • http://loaminoo.linkpc.net/1099099096095093/Blow-by-Blow-The-Story-of-Isabella-Blow-by-Detmar-Blow.pdf
    • http://loaminoo.linkpc.net/1090096099097094092/Tamora-Pierce---Alanna-The-First-Adventure-Characters-in-Alanna-The-First-Adventure-Places-in-Alanna-The-First-Adventure-Convent-Court-of-the-Rogue-Great-Mother-Goddess-Sponsor-Sweating-Sickness-Training-Master-Trebond-Ysandir-Alanna-of-P-by-Source-Wikipedia.pdf
    • http://loaminoo.linkpc.net/3091098092096092/Splat-the-Cat-Blow-Snow-Blow-by-Rob-Scotton.pdf
    • http://loaminoo.linkpc.net/1094095094098092/My-Escort-My-Escort-1-by-Kia-Carrington-Russell.pdf
    • http://loaminoo.linkpc.net/1090096099097098091/What-s-Killing-Us-A-Practical-Guide-to-Understanding-Our-Biggest-Global-Health-Problems-by-Alanna-Shaikh.pdf
    • http://loaminoo.linkpc.net/2095091097095096/Homebirth-The-Essential-Guide-to-Giving-Birth-Outside-of-the-Hospital-by-Sheila-Kitzinger.pdf
    • http://loaminoo.linkpc.net/4091090094092097/Agile-Manager-s-Guide-to-Giving-Great-Presentations-by-Jeff-Olson.pdf
    • http://loaminoo.linkpc.net/2091094097099091/The-Secrets-of-Consulting-A-Guide-to-Giving-and-Getting-Advice-Successfully-by-Gerald-M-Weinberg.pdf
    • http://loaminoo.linkpc.net/8092090094098093/Setting-Hearts-on-Fire-A-Guide-to-Giving-Evangelistic-Talks-by-John-Chapman.pdf
    • http://loaminoo.linkpc.net/1090096099098097094/Backyard-Poultry-Naturally-A-Complete-Guide-to-Raising-Chickens-amp-Ducks-Naturally-by-Alanna-Moore.pdf
    • http://loaminoo.linkpc.net/7090093096094099/Giving-Up-for-You-The-Giving-Trilogy-2-by-L-M-Carr.pdf
    • http://loaminoo.linkpc.net/7090093095095096/Giving-In-to-You-The-Giving-Trilogy-1-by-L-M-Carr.pdf
    • http://loaminoo.linkpc.net/3097092091095/Shooting-Yourself-in-the-Head-for-Fun-and-Profit-A-Writer-s-Survival-Guide-by-Lucy-A-Snyder.pdf
    • http://loaminoo.linkpc.net/5090098091098091/A-Kick-in-the-Head-An-Everyday-Guide-to-Poetic-Forms-by-Paul-B-Janeczko.pdf
    • http://loaminoo.linkpc.net/4090090092092096/Changing-the-Game-The-Parent-s-Guide-to-Raising-Happy-High-Performing-Athletes-and-Giving-Youth-Sports-Back-to-Our-Kids-by-John--O-39-Sullivan.pdf
    • http://loaminoo.linkpc.net/1090091093097090092/Head-First-Object-Oriented-Analysis-and-Design-A-Brain-Friendly-Guide-to-OOA-amp-D-by-Brett-McLaughlin.pdf
    • http://loaminoo.linkpc.net/3096094092095094/Hard-Head-Head-2-by-Damon-Suede.pdf
    • http://loaminoo.linkpc.net/1090094096095/Hot-Head-Head-1-by-Damon-Suede.pdf
    • http://loaminoo.linkpc.net/8097099093095/Hot-Head-Head-1-by-Damon-Suede.pdf
    • http://loaminoo.linkpc.net/1090096099097098091/What-s-Killing-Us-A-Practical-Guide-to-Unders

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