Malicious PDF — malware analysis report

Static analysis result for SHA-256 a622246ec4c53503…

MALICIOUS

PDF

29.2 KB Created: 2019-06-04 09:37:24 +01:00 Authoring application: mPDF 5.7
MD5: 4e057f6b68ae6bce13290d96e4356a07 SHA-1: 17e831a6159d7a0e43add007563f400a50171b27 SHA-256: a622246ec4c5350349c053dd012d9542f25ffc8c77fb297d300dec6a886c16c6
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a link farm, with numerous embedded URLs pointing to external PDF files. While the specific URLs themselves are marked as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO manipulation or to host further malicious content. No scripts were extracted from this sample. The attack pattern is inferred from the PDF structure and embedded links.

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/1731733732734734736/Public-Economics-and-Public-Choice-Contributions-in-Honor-of-Charles-B-Blankart-by-Pio-Baake.pdf
    • http://cefasfese.4pu.com/5732732737733730/The-Politics-of-Public-Management-The-Hrdc-Audit-of-Grants-and-Contributions-by-David-A-Good.pdf
    • http://cefasfese.4pu.com/6732730730738739/Sydney-Revels-The-Eighteen-Fifties-Of-Bacchus-Cupid-And-Momus-Being-Choice-And-Humorous-Selections-From-Scenes-At-The-Sydney-Police-Office-And-Other-Public-Places-During-The-Last-Three-Years-by-Charles-Adam-Corbyn.pdf
    • http://cefasfese.4pu.com/7732735731732736/Going-Public-Minimize-Fear-Maximize-Success-Master-Public-Speaking-by-Karen-a-Pelot.pdf
    • http://cefasfese.4pu.com/4737739732734734/Public-Women-Public-Words-A-Documentary-History-of-American-Feminism-by-Dawn-Keetley.pdf
    • http://cefasfese.4pu.com/3734738737733738/The-Public-Wealth-of-Nations-How-Management-of-Public-Assets-Can-Boost-or-Bust-Economic-Growth-by-Dag-Detter.pdf
    • http://cefasfese.4pu.com/1730738735731734730/Someone-Might-See-Us-Sex-in-Public-Are-You-Kidding-Five-Public-Sex-Erotica-Stories-by-Geena-Flix.pdf
    • http://cefasfese.4pu.com/1730737733730736734/Public-Attitudes-Towards-Family-Policies-in-Europe-Linking-Institutional-Context-and-Public-Opinion-by-Monika-Mischke.pdf
    • http://cefasfese.4pu.com/7733733730739738/Public-Administration-and-Public-Affairs-by-Nicholas-Henry.pdf
    • http://cefasfese.4pu.com/7733733732731730/Public-Finance-and-Public-Policy-by-Jonathan-Gruber.pdf
    • http://cefasfese.4pu.com/9738735730737734/Public-Sphere-And-Experience-Toward-An-Analysis-Of-The-Bourgeois-And-Proletarian-Public-Sphere-by-Oskar-Negt.pdf
    • http://cefasfese.4pu.com/8730731738732732/The-Economics-of-Defense-in-the-Nuclear-Age-With-Contributions-by-Stephen-Enke-Alain-Enthoven-Malcolm-W-Hoag-C-B-McGuire-and-Albert-Wohlsetter-a-Rand-Corporation-Research-Study-by-Charles-J-Hitch.pdf
    • http://cefasfese.4pu.com/8733736736731732/Catalogue-of-the-Important-Modern-Paintings-Which-Are-to-Be-Sold-at-Unrestricted-Public-Sale-by-Order-of-Mr-Felix-Isman-of-Philadelphia-at-Mendelssohn-Hall-on-the-Evening-Herein-Stated-by-Charles-H-Caffin.pdf
    • http://cefasfese.4pu.com/1730733738733735730/Social-Networks-and-their-Economics-Influencing-Consumer-Choice-by-Daniel-Birke.pdf
    • http://cefasfese.4pu.com/8731738731737736/Towards-a-Public-Law-of-Tort-by-Tom-Cornford.pdf
    • http://cefasfese.4pu.com/6739732737732/Public-Display-of-Everything-by-Cara-Dee.pdf
    • http://cefasfese.4pu.com/7733733733731735/Going-Public-by-Boris-Groys.pdf
    • http://cefasfese.4pu.com/2734736738731735/Public-Offerings-by-Bob-LiVolsi.pdf
    • http://cefasfese.4pu.com/4731732736739739/First-Ladies-by-National-Public-Radio.pdf
    • http://cefasfese.4pu.com/7733733733730737/Public-Relations-by-Edward-L-Bernays.pdf
    • http://cefasfese.4pu.com/4737739732734734/Public-Women-Public-Words-A

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