Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e3818ad22c3da7…

MALICIOUS

PDF

21.9 KB Created: 2019-05-04 12:10:25 +01:00 Authoring application: mPDF 5.7
MD5: e37483d8ffdc87e6724af59886b50cf3 SHA-1: 60b3fa26e410cc046c654a5f67874bac33444bb8 SHA-256: d1e3818ad22c3da775f2fbcc3b2b75f7aa4b847a359b1032d393c71eee53dc06
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, all hosted on the domain 'cefasfese.4pu.com'. This pattern is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. 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://cefasfese.4pu.com/4733737734732732/Meat-in-a-Seat-My-Trucking-Adventure-by-Chris-Cox.pdf
    • http://cefasfese.4pu.com/8739734736731734/The-Wurst-of-Lucky-Peach-A-Treasury-of-Encased-Meat-by-Chris-Ying.pdf
    • http://cefasfese.4pu.com/9739731737737730/The-Vegetarian-Meat-amp-Potatoes-Cookbook-275-Hearty-and-Healthy-Meat-Free-Recipes-by-Robin-G-Robertson.pdf
    • http://cefasfese.4pu.com/9739731738738734/More-Red-Meat-The-Second-Collection-of-Red-Meat-Cartoons-by-Max-Cannon.pdf
    • http://cefasfese.4pu.com/1730736738731737734/Twiggy-and-Stick-s-Haunted-Adventure-by-Chris-Dunst.pdf
    • http://cefasfese.4pu.com/4735734737734731/The-Meat-Market-Series-Boxed-Set-Meat-Market-1-3-by-Baylee-Crush.pdf
    • http://cefasfese.4pu.com/5733739735736735/Tents-and-Tent-Stability-A-Month-Long-Camping-Adventure-In-Germany---In-a-Rather-Dodgy-Tent-by-Chris-Lown.pdf
    • http://cefasfese.4pu.com/1730736739737734732/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://cefasfese.4pu.com/3733735733739734/By-the-Seat-of-My-Pants-by-Don-George.pdf
    • http://cefasfese.4pu.com/5730732739739/The-Man-in-Seat-11B-by-Andrew-James-Pritchard.pdf
    • http://cefasfese.4pu.com/2733732738735739/Trouble-Seat-of-Magic-1-by-R-J-Price.pdf
    • http://cefasfese.4pu.com/4739734732739732/The-Mercy-Seat-by-Neil-LaBute.pdf
    • http://cefasfese.4pu.com/8730730730735738/From-My-Corner-Seat-by-William-Flewelling.pdf
    • http://cefasfese.4pu.com/2739733735737730/Let-The-Adventure-Begin-The-Awesome-Adventure-of-Xiapo-Yellip-Zump-1-by-Jacob-Spire.pdf
    • http://cefasfese.4pu.com/2739736738733733/The-Island-of-Adventure-And-The-Castle-of-Adventure-Two-Great-Adventures-by-Enid-Blyton.pdf
    • http://cefasfese.4pu.com/4739738739732732/The-Great-Easter-Bunny-Adventure-Choose-Your-Own-Adventure-Young-Readers-40-by-Edward-Packard.pdf
    • http://cefasfese.4pu.com/1731739731736736739/Acting-Class-Take-a-Seat-by-Milton-Katselas.pdf
    • http://cefasfese.4pu.com/1732738738737735/Girls-in-the-Last-Seat-Waving-by-Maureen-McCarthy.pdf
    • http://cefasfese.4pu.com/1730730730734736739/My-Window-Seat-for-Arlena-Twigg-by-James-Reidel.pdf
    • http://cefasfese.4pu.com/2737730732736731/The-Bema-A-Story-About-The-Judgment-Seat-Of-Christ-by-Tim-Stevenson.pdf

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