Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7a9ca3156619be…

MALICIOUS

PDF

16.2 KB Created: 2019-05-02 06:47:32 +01:00 Authoring application: mPDF 5.7 First seen: 2020-12-25
MD5: 7634f5d01b5469acfa1404f7586744f9 SHA-1: 5b9e2eb8edf13e99c719a39647aa3d8dec88f50f SHA-256: ab7a9ca3156619bec611011e8d5acf4b039afd7e57ba697a1d471e7d63a1c0fa
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. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/1730737735731730733/A-Vampire-In-Edinburgh-Cassandra-Bick-1-8-by-Tracey-Sinclair.pdf In PDF document text
    • http://cefasfese.4pu.com/3739739730732739/A-Vampire-Christmas-Cassandra-Bick-Chronicles-1-75-by-Tracey-Sinclair.pdfIn PDF document text
    • http://cefasfese.4pu.com/3739739733738737/A-Vampire-Walks-Into-a-Bar-Cassandra-Bick-Chronicles-1-5-by-Tracey-Sinclair.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731736730735739735/The-Edinburgh-Fate-The-Edinburgh-Seer-3-by-Alisha-Klapheke.pdfIn PDF document text
    • http://cefasfese.4pu.com/4739734738730735/Kiera-Hudson-Limited-Edition-Series-One-Vampire-Shift-Vampire-Wake-amp-Vampire-Hunt-Book-1-by-Tim-O-39-Rourke.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730736731738734738/Wounds-2-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730736731738735730/Wounds-1-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/3730731736730736/The-Sin-Eater-s-Confession-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/3730733732736735/Draw-the-Dark-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/3738733738738731/Acceptable-Losses-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/7738735731730737/Drowning-Instinct-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730733734733738733/Das-M-dchen-und-der-Deserteur-Luke-Sinclair-Western-Band-27-by-Luke-Sinclair.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730736731738731733/Soldier-s-Heart-Part-One-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/1732734730732738/Monsters-Ashes-Trilogy-3-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/2737733738733738/The-Virgin-of-Clan-Sinclair-Clan-Sinclair-3-by-Karen-Ranney.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730736731738730737/Well-of-Souls-Star-Trek-The-Lost-Era-2336-by-Ilsa-J-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/1730737735731734734/All-I-Really-Need-to-Know-in-Business-I-Learned-at-Microsoft-Insider-Strategies-to-Help-You-Succeed-by-Julie-Bick.pdfIn PDF document text
    • http://cefasfese.4pu.com/2735734731735730/Edinburgh-by-Terry-Deary.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731736730736732734/Lost-Edinburgh-by-hamish-coghill.pdfIn PDF document text
    • http://cefasfese.4pu.com/1731736730736736738/The-Edinburgh-Bride-by-Anne-Douglas.pdfIn PDF document text

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