Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0f7cc9605acfa7…

MALICIOUS

PDF

36.8 KB Created: 2020-04-07 23:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88f4a1efa5e9aefc1a77e1acd0355376 SHA-1: 09c55e8a2f60001648e02125eb64792c9abbc2ab SHA-256: ab0f7cc9605acfa726bf7cc91171a50fb4777c0bf6645a56ed5c72f93974d09b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or content distribution network. The document body contains text related to 'Sullivan precalculus 9th edition pdf', which is likely a lure to attract users to click on the embedded links. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://voteforfraser.com/uploads/1/3/0/5/130588597/130588597.html#sullivan+precalculus+9th+edition+pdf
    • http://road2raw.com/uploads/1/3/0/8/130813524/1220874.pdf
    • http://owatonnaproud.com/uploads/1/3/0/4/130483852/funinedeli.pdf
    • http://frfconsulting.net/uploads/1/3/0/6/130604690/kipapazesunabovafe.pdf
    • http://stnersess.org/uploads/1/3/0/4/130489742/segatarub.pdf
    • http://uamdebate.com/uploads/1/3/0/6/130603983/nekipejosoz.pdf
    • http://yogabirthleicestershire.com/uploads/1/3/0/3/130379274/296889676.pdf
    • http://treasuredmomemntsphotography.com/uploads/1/3/0/4/130483940/d16a13.pdf
    • http://career-navigator.net/uploads/1/3/0/5/130551341/sawetejo-kuvigifawotepaf-xasozuget-wemimedufewoje.pdf
    • http://themedicaregroup.com/uploads/1/3/0/8/130814631/meginopon.pdf
    • http://globalwaronchristmas.com/uploads/1/3/1/4/131406202/kajojud.pdf
    • http://helpking.org/uploads/1/3/0/3/130323822/genulatezaka_nejepagulaxuve_mavel.pdf
    • http://conwaykratomcompany.com/uploads/1/3/1/3/131382942/2150381.pdf
    • http://backdoor-ps.net/uploads/1/3/0/5/130590203/2625480.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006835.bin
d838aff883313f8599de2fa4c4908276284aaf6bfe6db64ffe37f03936423470		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6835 7636 bytes

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