Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6c7b93459b07d2…

MALICIOUS

PDF

18.2 KB Created: 2019-05-02 19:35:11 +01:00 Authoring application: mPDF 5.7
MD5: f28d1af5f152dd86b39a6fd38895f66d SHA-1: a01e8e44ad8fca16012f455d772b731262542207 SHA-256: 2a6c7b93459b07d2462e6b3073c5dc05f5bd4ab30da549f374acff98874156ce
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, many of which are structured as book titles. This technique is often used to create link farms for SEO poisoning or to lure users to malicious content. 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 0.9807

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/3736738730734/Jeremy-Fink-and-the-Meaning-of-Life-by-Wendy-Mass.pdf
    • http://cefasfese.4pu.com/4732733736730736/Five-Days-at-Memorial-Life-and-Death-in-a-Storm-Ravaged-Hospital-by-Sheri-Fink.pdf
    • http://cefasfese.4pu.com/2732738736739/Song-for-a-Summer-Night-by-Mark-Dennis.pdf
    • http://cefasfese.4pu.com/1738732732735739/Spanish-Holiday-Or-How-I-Transformed-the-Worst-Vacation-Ever-into-the-Best-Summer-of-My-Life-by-Kate-Cann.pdf
    • http://cefasfese.4pu.com/3736734731739730/Summer-s-Journey-Volume-One---Losing-Control-Summer-s-Journey-1-by-Summer-Daniels.pdf
    • http://cefasfese.4pu.com/1736739734734737/California-Holiday-Or-How-the-World-s-Worst-Summer-Job-Gave-Me-a-Great-New-Life-by-Kate-Cann.pdf
    • http://cefasfese.4pu.com/9736730730735/A-Way-Back-to-Life-by-Mark--Phillips.pdf
    • http://cefasfese.4pu.com/1731732732735735731/Numbers-Of-Life-by-Mark-Gruner.pdf
    • http://cefasfese.4pu.com/3731730739731738/Life-on-the-Mississippi-by-Mark-Twain.pdf
    • http://cefasfese.4pu.com/2733735736739732/The-Breath-of-Life-by-Mark-Edward-Hall.pdf
    • http://cefasfese.4pu.com/1731737737732733736/Herbie-Nichols-A-Jazzist-s-Life-by-Mark-Miller.pdf
    • http://cefasfese.4pu.com/4736736730738737/A-Life-with-Horses-Spirit-of-the-Work-by-Mark-Rashid.pdf
    • http://cefasfese.4pu.com/1730737736731735/An-Eye-for-Eternity-The-Life-of-Manning-Clark-by-Mark-McKenna.pdf
    • http://cefasfese.4pu.com/2730730732733733/Cornubia-s-Son-A-Life-of-Mark-Guy-Pearse-by-Derek-R-Williams.pdf
    • http://cefasfese.4pu.com/3735735733736/The-Summer-I-Turned-Pretty-Trilogy-The-Summer-I-Turned-Pretty-It-s-Not-Summer-Without-You-We-ll-Always-Have-Summer-by-Jenny-Han.pdf
    • http://cefasfese.4pu.com/2736738730734731/Doctors-at-War-Life-and-Death-in-a-Field-Hospital-by-Mark-de-Rond.pdf
    • http://cefasfese.4pu.com/1731738735733733738/Bertold-Hummel-by-S-Fink.pdf
    • http://cefasfese.4pu.com/2736737730731/C-M-Kornbluth-The-Life-and-Works-of-a-Science-Fiction-Visionary-by-Mark-Rich.pdf
    • http://cefasfese.4pu.com/8739731733732739/I-Fall-to-Pieces-The-Music-and-the-Life-of-Patsy-Cline-by-Mark-Bego.pdf
    • http://cefasfese.4pu.com/3730736734733739/Mark-Spitz-The-Extraordinary-Life-of-an-Olympic-Champion-by-Richard-J-Foster.pdf
    • http://cefasfese.4pu.com/1736739734734737/California-Holiday-Or-How-the-World-s-Worst-Summer-Job-G

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