Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf4e8044bd84053a…

MALICIOUS

PDF

27.4 KB Created: 2020-03-18 23:24:59 +00:00 Authoring application: mPDF 5.7
MD5: e351e0525f19e5a64505b304d96297fb SHA-1: 4eeefb524c581a763aadc236cebce6290d513f69 SHA-256: cf4e8044bd84053a7c2dfe587ca2b9a66f3675d5cffc87cf8a667adf4ddba591
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links to external PDF files, suggesting a link farm or a distribution point for further malicious content. The primary attack pattern observed is the creation of a link farm, likely for SEO poisoning or to host malicious payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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://ujcsiniio.myhome.cx/1cd0cd9cd8cd2cd5cd7/30-Days-to-Diamond-The-Ultimate-League-of-Legends-Guide-to-Climbing-Ranked-The-Ultimate-League-of-Legends-Guide-to-Climbing-the-Ranked-Ladder-Book-1-by-St-Petr.pdf
    • http://ujcsiniio.myhome.cx/1cd0cd9cd8cd1cd4cd2/Lonely-Planet-s-Ultimate-Travel-Our-List-of-the-500-Best-Places-to-See-Ranked-by-Lonely-Planet.pdf
    • http://ujcsiniio.myhome.cx/3cd5cd5cd2cd3cd3/The-Ultimate-Teen-Book-Guide-by-Daniel-Hahn.pdf
    • http://ujcsiniio.myhome.cx/5cd7cd9cd1cd7cd3/Ultimate-Handbook-Guide-to-Bucharest-Romania-Travel-Guide-by-Hye-Ducharme.pdf
    • http://ujcsiniio.myhome.cx/3cd5cd9cd8cd8cd6/The-New-Western-Garden-Book-The-Ultimate-Gardening-Guide-by-Kathleen-Norris-Brenzel.pdf
    • http://ujcsiniio.myhome.cx/4cd9cd8cd8cd0cd3/Purple-Climbing-Days-by-Patricia-Reilly-Giff.pdf
    • http://ujcsiniio.myhome.cx/9cd7cd0cd1cd0/Cryptocurrency-For-Dummies-The-Ultimate-Guide-to-Investing-and-Trading-in-Cryptocurrency-for-Beginners-The-Easiest-Guide-to-Understand-Blockchain-Bitcoin-ICO-and-others-by-Jones-Richblood.pdf
    • http://ujcsiniio.myhome.cx/1cd0cd8cd4cd6cd1cd0/Ultimate-X-Men-Ultimate-Collection-Book-1-by-Mark-Millar.pdf
    • http://ujcsiniio.myhome.cx/1cd1cd6cd2cd9cd6cd2/Minecraft-Jurassic-World-Guide-The-Ultimate-Minecraft-Handbook-Complete-Game-Guide-To-Jurassic-World-Minecraft-Book-by-Tom-Dinosaurs.pdf
    • http://ujcsiniio.myhome.cx/1cd1cd0cd3cd0cd8cd0/Witchcraft-The-Big-Spell-Book-The-ultimate-guide-to-witchcraft-spells-rituals-and-wicca-by-Justin-Kase.pdf
    • http://ujcsiniio.myhome.cx/8cd2cd7cd2cd9cd1/The-Ultimate-Guide-to-Permaculture-by-Faires.pdf
    • http://ujcsiniio.myhome.cx/2cd1cd1cd0cd3cd3/The-Ultimate-World-Wrestling-Entertainment-Trivia-Book-The-Ultimate-WWE-Trivia-Book-by-Aaron-Feigenbaum.pdf
    • http://ujcsiniio.myhome.cx/5cd7cd4cd4cd4cd0/Choosing-the-President-2008-A-Citizen-s-Guide-to-the-Electoral-Process-by-The-League-of-Women-Voters.pdf
    • http://ujcsiniio.myhome.cx/1cd1cd4cd3cd7cd3/Native-Stones-Book-About-Climbing-by-David-Craig.pdf
    • http://ujcsiniio.myhome.cx/8cd0cd7cd0cd9cd7/The-ultimate-guide-to-texting-girls-by-Artisan.pdf
    • http://ujcsiniio.myhome.cx/1cd1cd4cd8cd8cd3cd2/How-To-Drive-The-Ultimate-Guide-from-the-Man-Who-Was-the-Stig-by-Ben-Collins.pdf
    • http://ujcsiniio.myhome.cx/5cd0cd2cd3cd3/The-Ultimate-Ps3-tm-Repair-Guide-by-Andrew-Wright.pdf
    • http://ujcsiniio.myhome.cx/5cd4cd4cd7cd4cd6/The-Ultimate-Fibromyalgia-Book-Guide---How-to-Successfully-Live-with-Fibromyalgia-and-Recipes-for-the-Fibromyalgia-Diet-by-Mia-Soleil.pdf
    • http://ujcsiniio.myhome.cx/1cd0cd7cd7cd9cd4cd2/Ancient-Egyptian-Myths-amp-Legends-World-Book-Myths-amp-Legends-Series-by-Philip-Ardagh.pdf
    • http://ujcsiniio.myhome.cx/1cd0cd7cd7cd9cd8cd5/North-American-Myths-amp-Legends-World-Book-Myths-amp-Legends-Series-by-Philip-Ardagh.pdf
    • http://ujcsiniio.myhome.cx/3cd5cd9cd8cd8cd6/The-New-Western-Garden-Book-The-Ultimate-Gardening-Guide-by-Kathleen-Norri

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