Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97ce91e09da5745…

MALICIOUS

PDF

16.9 KB Created: 2019-05-24 17:46:59 +01:00 Authoring application: mPDF 5.7
MD5: fa5b20b07c4fb055a71306ca80c5e119 SHA-1: d2d6be2d9e7f1605237ab1d6241fe331e8e370ee SHA-256: e97ce91e09da57451d6340be57fa916a9386e09e24fa5ec64cd42956eae65292
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 other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific intent of the links is unclear due to their benign reputation, the overall structure suggests a malicious distribution or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/1731731732734735737/Retribution-by-Jilliane-Hoffman.pdf
    • http://cefasfese.4pu.com/1730731732733738730/Plea-of-Insanity-by-Jilliane-Hoffman.pdf
    • http://cefasfese.4pu.com/4738732736737732/So-Much-Pretty-by-Cara-Hoffman.pdf
    • http://cefasfese.4pu.com/3739730736738736/The-Last-Four-Things-The-Left-Hand-of-God-2-by-Paul-Hoffman.pdf
    • http://cefasfese.4pu.com/4734738737738/The-Last-Four-Things-The-Left-Hand-of-God-2-by-Paul-Hoffman.pdf
    • http://cefasfese.4pu.com/1732739730730730/Pretty-Bad-Things-by-C-J-Skuse.pdf
    • http://cefasfese.4pu.com/1736733737738734/The-Small-Heart-of-Things-Being-at-Home-in-a-Beckoning-World-by-Julian-Hoffman.pdf
    • http://cefasfese.4pu.com/9738733731/Dirty-Pretty-Things-by-Michael-Faudet.pdf
    • http://cefasfese.4pu.com/3734732733734739/Even-Pretty-Things-Rot-A-dark-and-compulsive-thriller-by-Farah-Ali.pdf
    • http://cefasfese.4pu.com/7731735731733/Pretty-Little-Secrets-A-Pretty-Little-Liars-Collection-Pretty-Little-Liars-4-5-by-Sara-Shepard.pdf
    • http://cefasfese.4pu.com/2733730734733733/Pretty-is-as-Pretty-Dies-Myrtle-Clover-Mysteries-1-by-Elizabeth-Spann-Craig.pdf
    • http://cefasfese.4pu.com/2734733733733739/Pretty-When-She-Kills-Pretty-When-She-Dies-2-by-Rhiannon-Frater.pdf
    • http://cefasfese.4pu.com/9736731730736736/The-Pretty-Series-Bundle-Pretty-1-3-5-by-Michelle-Leighton.pdf
    • http://cefasfese.4pu.com/1738730730730734/Pretty-Sly-Pretty-Crooked-2-by-Elisa-Ludwig.pdf
    • http://cefasfese.4pu.com/2739737734736732/Pretty-New-Doll-Pretty-Little-Dolls-3-by-Ker-Dukey.pdf
    • http://cefasfese.4pu.com/4732730734734734/Pretty-Hot-Pretty-1-by-Donna-Alam.pdf
    • http://cefasfese.4pu.com/3738732735735738/Mable-Hoffman-s-Chocolate-Cookery-by-Mable-Hoffman.pdf
    • http://cefasfese.4pu.com/2737739732731733/Pretty-Guardian-Sailor-Moon-Vol-9-Pretty-Soldier-Sailor-Moon-Renewal-Edition-9-by-Naoko-Takeuchi.pdf
    • http://cefasfese.4pu.com/4734737734739/Pretty-Guardian-Sailor-Moon-Vol-1-Pretty-Soldier-Sailor-Moon-Renewal-Edition-1-by-Naoko-Takeuchi.pdf
    • http://cefasfese.4pu.com/4735733735738/Pretty-Little-Liars-Box-Set-Pretty-Little-Liars-1-4-by-Sara-Shepard.pdf
    • http://cefasfese.4pu.com/2733730734733733/Pretty-is-as-Pretty-Dies-My

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