Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d92e4fc82b6c380…

MALICIOUS

PDF

18.9 KB Created: 2019-05-02 18:21:12 +01:00 Authoring application: mPDF 5.7
MD5: c17370f35f71986cc69ccdf98409bdca SHA-1: ecddfa8c5a435bc0b7a3f089bffb484c26af9cb9 SHA-256: 6d92e4fc82b6c38011dd59415c3b27c82adc85e593a35b4bb6b1858f0986635e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links to external PDFs suggests an attempt to manipulate search engine results or distribute content indirectly. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/2736731732730730/Divorce-Interrupted-Lake-Willowbee-1-by-Jill-James.pdf
    • http://cefasfese.4pu.com/1734730732730/How-It-Feels-When-Parents-Divorce-by-Jill-Krementz.pdf
    • http://cefasfese.4pu.com/6733732734730738/LAILAH---God-s-Divorce-from-Her-by-H-James-Kutscka.pdf
    • http://cefasfese.4pu.com/2731737734732734/Happy-Divorce-How-to-turn-your-divorce-into-the-most-brilliant-and-rewarding-opportunity-of-your-life-by-Rossana-Condoleo.pdf
    • http://cefasfese.4pu.com/6733732734738733/LAILAH-God-s-Divorce-from-Her-The-Rick-Hammad-series-Book-1-by-Hilton-James-Kutscka.pdf
    • http://cefasfese.4pu.com/1730730730734731/The-Grief-Recovery-Handbook-A-Program-for-Moving-Beyond-Death-Divorce-and-Other-Devastating-Losses-by-John-W-James.pdf
    • http://cefasfese.4pu.com/2732735730733739/The-Christmas-Con-by-Jill-James.pdf
    • http://cefasfese.4pu.com/5730731738733731/The-Lake-House-by-James-Patterson.pdf
    • http://cefasfese.4pu.com/9733730739737737/Whisper-Lake-by-James-Melzer.pdf
    • http://cefasfese.4pu.com/3730730734733737/Love-in-the-Time-of-Zombies-by-Jill-James.pdf
    • http://cefasfese.4pu.com/3733738732737733/The-Shepherd-s-Life-A-Tale-of-the-Lake-District-by-James-Rebanks.pdf
    • http://cefasfese.4pu.com/4730731733735738/Benedict-Arnold-s-Navy-The-Ragtag-Fleet-That-Lost-the-Battle-of-Lake-Champlain-But-Won-the-American-Revolution-by-James-L-Nelson.pdf
    • http://cefasfese.4pu.com/5737732733733731/Benedict-Arnold-s-Navy-The-Ragtag-Fleet-That-Lost-the-Battle-of-Lake-Champlain-But-Won-the-American-Revolution-by-James-L-Nelson.pdf
    • http://cefasfese.4pu.com/2730738735738730/A-View-of-the-Lake-Living-the-Dream-on-Lake-Superior-by-Beryl-Singleton-Bissell.pdf
    • http://cefasfese.4pu.com/2738730731738734/The-Lake-The-Lake-Trilogy-1-by-AnnaLisa-Grant.pdf
    • http://cefasfese.4pu.com/1731730735737739736/Big-Lake-Blizzard-Big-Lake-4-by-Nick-Russell.pdf
    • http://cefasfese.4pu.com/6731735735730733/Antigone-Interrupted-by-Bonnie-Honig.pdf
    • http://cefasfese.4pu.com/2733733739733732/Interrupted-Lullaby-by-Dana-R-Lynn.pdf
    • http://cefasfese.4pu.com/8738730737739/Girl-Interrupted-by-Susanna-Kaysen.pdf
    • http://cefasfese.4pu.com/4733739735737736/Girl-Interrupted-by-Susanna-Kaysen.pdf

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