Malicious PDF — malware analysis report

Static analysis result for SHA-256 96140aa06007a5de…

MALICIOUS

PDF

14.9 KB Created: 2019-06-04 20:24:24 +01:00 Authoring application: mPDF 5.7
MD5: 03ac6b98a025858cf926fd7e490d7e43 SHA-1: 13661b9a105f146d357c367ca9631901fec2104e SHA-256: 96140aa06007a5deba3e3b36dc697c67169755959f12bba0ab1228ba8a9505ac
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While most of the linked URLs themselves are classified as benign, the sheer volume and structure suggest a malicious intent, likely for SEO poisoning or to redirect users to malicious sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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.c
    • http://cefasfese.4pu.com/3730732737730735/Her-Prodigal-Passion-Mayhem-in-Mayfair-4-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/3738734736737738/Her-Wanton-Wager-Mayhem-in-Mayfair-2-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/1737731734735734/Her-Husband-s-Harlot-Mayhem-in-Mayfair-1-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/4730730738730730/Seduced-at-Midnight-Mayhem-in-Mayfair-3-by-Jacquie-D-39-Alessandro.pdf
    • http://cefasfese.4pu.com/3739734730736733/Tempted-At-Midnight-Mayhem-in-Mayfair-4-by-Jacquie-D-39-Alessandro.pdf
    • http://cefasfese.4pu.com/3734739732730733/Never-Say-Never-to-an-Earl-Heart-of-Enquiry-5-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/3734739732730730/The-Viscount-Always-Knocks-Twice-Heart-of-Enquiry-4-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/4734736737736734/The-Lady-Who-Came-in-from-the-Cold-Heart-of-Enquiry-3-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/3738734736737737/The-Duke-Who-Knew-Too-Much-Heart-of-Enquiry-1-by-Grace-Callaway.pdf
    • http://cefasfese.4pu.com/3736738730732730/Mayhem-Mayhem-1-by-Jamie-Shaw.pdf
    • http://cefasfese.4pu.com/1739734731735/Murder-and-Mayhem-Murder-and-Mayhem-1-by-Rhys-Ford.pdf
    • http://cefasfese.4pu.com/1731737732734739/Six-Faces-by-Ryan-Callaway.pdf
    • http://cefasfese.4pu.com/1732736738732736/Commitments-Supernatural-by-Tamala-Callaway.pdf
    • http://cefasfese.4pu.com/3738739737734736/Forgive-Me-Callaway-2-by-Kaithlin-Shepherd.pdf
    • http://cefasfese.4pu.com/6735738735737733/Passion-of-Valery---Pictures-Desire-by-Passion-Erotic.pdf
    • http://cefasfese.4pu.com/1730736730735733730/Ruby-Callaway-The-Complete-Collection-by-D-N-Erikson.pdf
    • http://cefasfese.4pu.com/8731732739730735/History-of-the-Qumran-Community-An-Investigation-by-Phillip-R-Callaway.pdf
    • http://cefasfese.4pu.com/2730732732738735/Nobody-But-You-A-Callaway-Wedding-Novella-Callaways-4-5-by-Barbara-Freethy.pdf
    • http://cefasfese.4pu.com/1739739738734731/The-Passion-to-Survive-The-Passion-1-by-Dana-L-Elgrod.pdf
    • http://cefasfese.4pu.com/8731731736738731/A-Murder-in-Mayfair-by-Robert-Barnard.pdf

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