Malicious PDF — malware analysis report

Static analysis result for SHA-256 d033842a5c813ab6…

MALICIOUS

PDF

42.3 KB Created: 2020-03-29 09:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3b771a582d597ca04a53c7ae6e051530 SHA-1: 8449e26b7f03c83770a94ca4de8d74dfd4f9db91 SHA-256: d033842a5c813ab657a6f516b7d3707138733065a4c15f53d68c427178dde35b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that points to a page about creating an index in Word, and also includes the same URL and other PDF links. This suggests a link farm or SEO manipulation tactic, potentially to distribute malware or engage in phishing. 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://beyondhillco.com/uploads/1/3/0/6/130620660/130620660.html#como+hacer+un+indice+en+un+trabajo+de+word
    • http://tastydairy.club/uploads/1/3/0/6/130620807/6e221.pdf
    • http://www.electricalbum.com/uploads/1/3/0/3/130379246/bewikutobo_dafosa_vukumojef.pdf
    • http://74-123-75-193.mgwnet.com/uploads/1/3/0/5/130540472/21d091cba1ff3.pdf
    • http://www.wellnesspractitioner.co.uk/uploads/1/3/0/6/130639061/nagetesela.pdf
    • http://campmarymount.org/uploads/1/3/0/4/130478110/6488574.pdf
    • http://mtdistrictlwml.com/uploads/1/3/0/5/130547275/7a1d4bf3f.pdf
    • http://mx.brandywinefarmllc.com/uploads/1/3/0/5/130589281/luzirogebul-xefunewibe.pdf
    • http://edamamiexperience.com/uploads/1/3/0/4/130476733/vipemanepezat.pdf
    • http://sophievermeulen.com/uploads/1/3/0/5/130590678/ruzikajo.pdf
    • http://www.tcapstransparency.com/uploads/1/3/0/4/130476557/5fbb5.pdf
    • http://www.confidance.eu/uploads/1/3/0/7/130775440/c43e6e7d99.pdf
    • http://sgeg1.com/uploads/1/3/0/6/130604741/rotimutudaki-leregetij.pdf
    • http://www.myukpensiontransfer.com.au/uploads/1/3/0/9/130969179/7335585.pdf
    • http://memorialbuildingandtheatre.org/uploads/1/3/0/9/130969220/6adad69a35c0.pdf
    • http://dzwiekochmura.com/uploads/1/3/0/5/130551477/2690256.pdf
    • http://latishaowens.com/uploads/1/3/0/6/130620327/77bbeb528a81.pdf
    • http://www.dirtydre.com.au/uploads/1/3/0/8/130814246/penegisujiluxorilot.pdf
    • http://thomashildebrandt.net/uploads/1/3/0/7/130776866/7523665.pdf
    • http://tourstotheisleofskye.com/uploads/1/3/0/2/130272414/4155760.pdf
    • http://globalproportions.com/uploads/1/3/0/7/130739811/a541160dbfe24.pdf
    • http://radioactiveantiques.com/uploads/1/3/0/8/130814687/dc690ef4e0d0.pdf
    • http://premierarchsheetmetalinc.com/uploads/1/3/1/1/131164406/vedabo-xarofupag.pdf
    • http://jolenesphotography.com/uploads/1/3/0/7/130739513/tuwiwupaj.pdf
    • http://sjisff.com/uploads/1/3/0/2/130272921/739218.pdf
    • http://sjisff.com/uploads/1
    • 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_off00007a3c.bin
bbca4554bf3bb39f793d0d1ab70d7122a961ae80d0f0beb67d59a792abdff806		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3C 8624 bytes

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