Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9215e4d80a4a305…

MALICIOUS

PDF

18.9 KB Created: 2019-11-07 11:53:25 +00:00 Authoring application: mPDF 5.7
MD5: 38811d047d7931d713a9fd14fdb422bb SHA-1: 41df380a5385beca5b1ecd5e2f05452f0afdffaf SHA-256: f9215e4d80a4a30585fd48dacd02e54b470d96b0b6807a13b2d476f27e9599f8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, forming a link farm. This technique is often used to obscure the ultimate malicious destination or to distribute malicious content across multiple domains. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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/2736731732735733/Seriously-I-m-Kidding-by-Ellen-DeGeneres.pdf
    • http://cefasfese.4pu.com/3730733739731735/Seriously-I-m-Kidding-by-Ellen-DeGeneres.pdf
    • http://cefasfese.4pu.com/2739733737732/Seriously-I-39-m-Kidding-by-Ellen-DeGeneres.pdf
    • http://cefasfese.4pu.com/2736737738730736/My-Point-And-I-Do-Have-One-by-Ellen-DeGeneres.pdf
    • http://cefasfese.4pu.com/2730738734735734/Just-Kidding-by-Andy-Griffiths.pdf
    • http://cefasfese.4pu.com/1739737738732736/Just-Kidding-by-Diane-Vallere.pdf
    • http://cefasfese.4pu.com/4737732730733732/Uganda-Be-Kidding-Me-by-Chelsea-Handler.pdf
    • http://cefasfese.4pu.com/3738736737731737/Kidding-Ourselves-The-Hidden-Power-of-Self-Deception-by-Joseph-T-Hallinan.pdf
    • http://cefasfese.4pu.com/6730739732731739/Kidding-Around-NYC-For-Kids-Who-Want-the-Inside-Track-on-the-City-by-Suzanne-Roche.pdf
    • http://cefasfese.4pu.com/1730738735731734730/Someone-Might-See-Us-Sex-in-Public-Are-You-Kidding-Five-Public-Sex-Erotica-Stories-by-Geena-Flix.pdf
    • http://cefasfese.4pu.com/2735738733738735/Mary-Ellen-s-Best-of-Helpful-Hints-by-Mary-Ellen-Pinkham.pdf
    • http://cefasfese.4pu.com/3736734733735737/PATRIARCHS-AND-PROPHETS-PROPHETS-AND-KINGS-THE-DESIRE-OF-AGES-THE-ACTS-OF-THE-APOSTLES-THE-GREAT-CONTROVERSY-BY-ELLEN-G-WHITE-CONFLICT-OF-THE-AGES-SERIES-5-VOL-VOL-1-2-3-4-5-by-Ellen-G-White.pdf
    • http://cefasfese.4pu.com/3738737735732737/Ellen-Gilchrist-Collected-Stories-by-Ellen-Gilchrist.pdf
    • http://cefasfese.4pu.com/2732738732730736/Are-You-Kidding-Me-The-Story-of-Rocco-Mediate-s-Extraordinary-Battle-with-Tiger-Woods-at-the-US-Open-by-Rocco-Mediate.pdf
    • http://cefasfese.4pu.com/2731732730732/The-Essential-Ellen-Willis-by-Ellen-Willis.pdf
    • http://cefasfese.4pu.com/1737735736735739/Never-Evers-by-Tom-Ellen.pdf
    • http://cefasfese.4pu.com/5738739737734733/Sannah-amp-Ham-by-Tom-Ellen.pdf
    • http://cefasfese.4pu.com/1735733735731/All-Together-Now-by-Sue-Ellen-Bridgers.pdf
    • http://cefasfese.4pu.com/9733734733736736/We-Can-Go-by-Ellen-Geist.pdf
    • http://cefasfese.4pu.com/8737730735/What-If-Everybody-Said-That-by-Ellen-Javernick.pdf
    • http://cefasfese.4pu.com/1730738735731734730/Someone-Might

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