Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a47251aaafedc75…

MALICIOUS

PDF

23.3 KB Created: 2019-05-07 09:06:58 +01:00 Authoring application: mPDF 5.7
MD5: 1e9b29856e2480043114a6677d6d089a SHA-1: 49255a0bcafb79706e20f2e9e729a3ec97716541 SHA-256: 8a47251aaafedc758daa827dab30abdc1d3aff017fa4acbc7be6e1309cd3d957
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. While the document body is heavily obfuscated, the presence of numerous links suggests a lure to external content, potentially for SEO manipulation or to host further malicious payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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://seasasac.lflinkup.com/1da4da3da8da7da0/Adaptations-From-Short-Story-to-Big-Screen-35-Great-Stories-That-Have-Inspired-Great-Films-by-Stephanie-Harrison.pdf
    • http://seasasac.lflinkup.com/4da4da5da1da8da0/Great-Short-Short-Stories-Quick-Reads-by-Great-Writers-by-Paul-Negri.pdf
    • http://seasasac.lflinkup.com/2da0da5da1da1da6/Great-American-Short-Stories-by-H-Bodden.pdf
    • http://seasasac.lflinkup.com/4da4da5da5da4da9/Great-American-Short-Stories-by-Paul-Negri.pdf
    • http://seasasac.lflinkup.com/9da4da8da5da9da5/Great-British-and-Irish-Short-Stories-I-by-Joanne-Suter.pdf
    • http://seasasac.lflinkup.com/8da9da9da0da8da5/Schaum-s-Quick-Guide-to-Writing-Great-Short-Stories-by-Margaret-Lucke.pdf
    • http://seasasac.lflinkup.com/3da1da3da3da9da1/Easy-Reading-For-Youngsters-Collection-of-14-Great-Silly-Short-Stories-with-Pictures-by-Betty-J-Byers.pdf
    • http://seasasac.lflinkup.com/9da7da8da2da1/The-Story-Until-Now-A-Great-Big-Book-of-Stories-by-Kit-Reed.pdf
    • http://seasasac.lflinkup.com/3da1da2da7da0da3/Great-Stories-for-Young-Kids-13-Easy-to-Read-Short-Stories-That-Parents-and-Kids-can-Read-Together-by-Betty-J-Byers.pdf
    • http://seasasac.lflinkup.com/1da1da7da9da3da0da1/Great-Novels-and-Short-Stories-of-E-M-Forster-by-E-M-Forster.pdf
    • http://seasasac.lflinkup.com/1da8da6da9da5da2/Great-Gals-Inspired-Ideas-for-Living-a-Kick-Ass-Life-by-Summer-Pierre.pdf
    • http://seasasac.lflinkup.com/1da0da8da6da2da8da0/Islamicates-Volume-I-Anthology-of-Science-Fiction-short-stories-inspired-by-Muslim-cultures-by-Muhammad-Aurangzeb-Ahmad.pdf
    • http://seasasac.lflinkup.com/8da6da5da0da6/Reading-Women-How-the-Great-Books-of-Feminism-Changed-My-Life-by-Stephanie-Staal.pdf
    • http://seasasac.lflinkup.com/2da1da4da6da3da5/Great-Short-Works-by-Edgar-Allan-Poe.pdf
    • http://seasasac.lflinkup.com/4da3da3da9da9da3/Great-Short-Works-by-Mark-Twain.pdf
    • http://seasasac.lflinkup.com/1da0da3da5da8da9da2/Kearsley-s-Traveller-s-Entertaining-Guide-Through-Great-Britain-Or-a-Description-of-the-Great-Roads-and-Principal-Cross-Roads-Marking-the-Distances-of-Places-to-and-from-London-and-from-Each-Other-the-Principal-Great-Roads-of-Ireland-Different-Ro-by-George-Kearsley.pdf
    • http://seasasac.lflinkup.com/8da4da8da0da8da1/The-Power-of-Forgiveness-A-Collection-of-Short-Stories-by-Stephanie-Baskerville.pdf
    • http://seasasac.lflinkup.com/9da7da5da1da5da0/The-Great-American-Eat-Right-Cookbook-140-Great-Tasting-Good-for-You-Recipes-by-Jeanne-Besser.pdf
    • http://seasasac.lflinkup.com/8da5da8da6da3da4/Look-Great-Feel-Great-12-Keys-to-Enjoying-a-Healthy-Life-Now-by-Joyce-Meyer.pdf
    • http://seasasac.lflinkup.com/2da9da7da7da7da8/Great-Beginnings-Opening-Lines-of-Great-Novels-by-Georgianne-Ensign.pdf
    • http://seasasac.lflinkup.com/3da1da3da3da9da1/Easy-Reading-For-Youngsters-Collection-of-14-Great-Silly-Short-Stories-with-Pictures-by-Bet

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