Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d36c130d1977a79…

MALICIOUS

PDF

29.9 KB Created: 2019-05-03 06:13:54 +01:00 Authoring application: mPDF 5.7
MD5: 39d6c3ef5bf67f8f5d3c629b29d1b486 SHA-1: 502bc51bf670f13cd95c937b71def17517545c49 SHA-256: 6d36c130d1977a79871876e7acaf21f064d77ada1f16797f665a3829b49f3082
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is unreadable, the presence of this link farm suggests an attempt to direct users to potentially malicious or spam content. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9689

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/1738733733732733/The-Plant-Based-Journey-A-Step-by-Step-Guide-for-Transitioning-to-a-Healthy-Lifestyle-and-Achieving-Your-Ideal-Weight-by-Lani-Muelrath.pdf
    • http://cefasfese.4pu.com/1730730731739732/How-to-Run-a-Home-Based-Ebay-Store-A-Complete-Step-by-Step-Guide-for-Your-First-Online-Store-by-Annette-Shaw.pdf
    • http://cefasfese.4pu.com/3739733734734733/Love-Based-Copywriting-System-A-Step-by-Step-Process-to-Master-Writing-Copy-That-Attracts-Inspires-and-Invites-Love-Based-Business-Book-2-by-Michele-P-W-.pdf
    • http://cefasfese.4pu.com/3737735735736735/Weight-Training-Without-Injury-Over-350-Step-by-Step-Pictures-Including-What-Not-to-Do-by-Fred-Stellabotte.pdf
    • http://cefasfese.4pu.com/6737735730736733/Aussie-Paleo-Step-By-Step-Improve-your-health-and-lose-weight-one-change-at-a-time-by-Melinda-Blundell.pdf
    • http://cefasfese.4pu.com/6737733730738737/The-Art-of-Downsizing-A-Step-by-Step-Guide-to-a-Smooth-Home-Transition-by-Pierrette-Raymond.pdf
    • http://cefasfese.4pu.com/6734739734730738/Python-Programming-Step-by-Step-Guide-from-Beginners-to-Expert-by-ADRIEN-AIDA.pdf
    • http://cefasfese.4pu.com/9732732731731732/Your-First-1000-Copies-The-Step-by-Step-Guide-to-Marketing-Your-Book-by-Tim-Grahl.pdf
    • http://cefasfese.4pu.com/1730739733733734738/The-Raw-Food-Diet-Step-by-Step-Guide-for-Beginners-by-Jamie-Fynn.pdf
    • http://cefasfese.4pu.com/9738737732730738/Research-Methodology-A-Step-By-Step-Guide-for-Beginners-by-Ranjit-Kumar.pdf
    • http://cefasfese.4pu.com/7736735732739/Agile-Scrum-Your-Quick-Start-Guide-with-Step-by-Step-Instructions-by-Scott-M-Graffius.pdf
    • http://cefasfese.4pu.com/6735733730730735/How-to-Talk-to-Your-Child-About-Sex-It-s-Best-to-Start-Early-but-It-s-Never-Too-Late----A-Step-by-Step-Guide-for-Every-Age-by-Linda-Eyre.pdf
    • http://cefasfese.4pu.com/1737737737736739/Authority-Marketing-Manual-A-Step-By-Step-Guide-For-How-To-Turn-Your-Passion-Into-Profit-by-Rebekah-Welch.pdf
    • http://cefasfese.4pu.com/4739734733733731/Overcoming-Night-Eating-Syndrome-A-Step-by-step-Guide-to-Breaking-the-Cycle-by-Kelly-C-Allison.pdf
    • http://cefasfese.4pu.com/9734739733735739/How-to-Write-a-Book-Proposal-The-Insider-s-Step-By-Step-Guide-to-Proposals-That-Get-You-Published-by-Michael-Larsen.pdf
    • http://cefasfese.4pu.com/2735736739736732/The-Startup-Owner-s-Manual-The-Step-By-Step-Guide-for-Building-a-Great-Company-by-Steve-Blank.pdf
    • http://cefasfese.4pu.com/1730735732733739735/Nature-Crafts-for-Christmas-A-Step-By-Step-Guide-to-Making-Wreaths-Ornaments-and-Decorations-by-Dawn-Cusick.pdf
    • http://cefasfese.4pu.com/1731739736737739731/VW-Beetle-Performance-Handbook-A-Step-by-Step-Guide-to-Upgrading-Engine-Transmission-Suspension-and-Brakes-by-Keith-Seume.pdf
    • http://cefasfese.4pu.com/3736736738734730/The-Ultimate-Teen-Relationship-Guide-Step-By-Step-Handbook-for-Love-and-Dating-That-Young-People-Can-Really-Use-by-Eddie-Acevedo.pdf
    • http://cefasfese.4pu.com/5730735731737730/First-Time-Cake-Decorating-The-Absolute-Beginner-s-Guide---Learn-by-Doing-Step-by-Step-Basics-Projects-by-Autumn-Carpenter.pdf