Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8b10ce699a3879…

MALICIOUS

PDF

17.5 KB Created: 2019-05-02 05:12:51 +01:00 Authoring application: mPDF 5.7
MD5: 996c5554881e098536d21d1d3ae6fd1d SHA-1: bf6356e9a837203b1089ada137fad9baa8c03eff SHA-256: 8e8b10ce699a38791e60d0d11c96f41d570c53dcc811ccf9943fd3122c5ac410
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, suggesting a link farm or distribution mechanism. The ML classifier also flagged the PDF as malicious. While the specific intent of the links is unclear, the sheer volume and the heuristic firing indicate a malicious purpose, likely to redirect users to harmful content or facilitate further infection. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/2730739736731734/One-Man-s-Trash-Musicology-1-by-Yolanda-Allen.pdf
    • http://cefasfese.4pu.com/1737734734731732/One-Man-s-Trash-Another-Man-s-Treasure-by-Yolanda-Allen.pdf
    • http://cefasfese.4pu.com/1737734734737739/Mr-Yummy-Chocolate-by-Yolanda-Allen.pdf
    • http://cefasfese.4pu.com/6739738733733/The-Wedding-Date-by-Elizabeth-Young.pdf
    • http://cefasfese.4pu.com/4733733736735735/The-Wedding-Vow-Save-the-Date-2-by-Cara-Connelly.pdf
    • http://cefasfese.4pu.com/3736733736733731/Wedding-Date-for-Hire-Anyone-But-You-2-by-Jennifer-Shirk.pdf
    • http://cefasfese.4pu.com/5739730734737738/The-Wedding-Date-Silhouette-Yours-Truly-12-by-Christie-Ridgway.pdf
    • http://cefasfese.4pu.com/3734731734730731/The-Wedding-Date-Belmont-Beach-Brides-1-by-Kelly-Eadon.pdf
    • http://cefasfese.4pu.com/3737733730737732/Snowbound-Wedding-Wishes-An-Earl-Beneath-the-Mistletoe-Twelfth-Night-Proposal-Christmas-at-Oakhurst-Manor-by-Louise-Allen.pdf
    • http://cefasfese.4pu.com/3739737730738732/My-Last-Blind-Date-Better-Date-Than-Never-3-by-Susan-Hatler.pdf
    • http://cefasfese.4pu.com/3738731737734730/Date-and-Dash-Better-Date-than-Never-10-by-Susan-Hatler.pdf
    • http://cefasfese.4pu.com/3736737730730732/Love-at-First-Date-Better-Date-than-Never-1-by-Susan-Hatler.pdf
    • http://cefasfese.4pu.com/1737731734736734/The-Wedding-Dress-Diaries-The-Wedding-Season-0-5-by-Aimee-Carson.pdf
    • http://cefasfese.4pu.com/2732730736735732/The-Unexpected-Wedding-Guest-The-Wedding-Season-1-by-Aimee-Carson.pdf
    • http://cefasfese.4pu.com/5734738739733736/The-Everything-Bridesmaid-Book-From-bachelorette-party-planning-to-wedding-ceremony-etiquette---all-you-need-for-an-unforgettable-wedding-by-Holly-Lefevre.pdf
    • http://cefasfese.4pu.com/1730730735739739737/Irish-Wedding-Traditions-Using-Your-Irish-Heritage-to-Create-the-Perfect-Wedding-by-Shannon-McMahon-Lichte.pdf
    • http://cefasfese.4pu.com/3735735736730737/The-Lies-Between-Us-by-Yolanda-Olson.pdf
    • http://cefasfese.4pu.com/6738734730732730/Bones-by-Yolanda-Olson.pdf
    • http://cefasfese.4pu.com/3734736730736735/Bebe-s-By-Golly-Wow-by-Yolanda-Joe.pdf
    • http://cefasfese.4pu.com/2734732736732736/The-Lies-Between-Us-by-Yolanda-Olson.pdf
    • http://cefasfese.4pu.com/3739737730738732/My-Last-Blind-Date-Better-Date-Than-Never-3-by-Susan-Hatler

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