PDF malware analysis — malicious · 8b92e1c45c33744b

MALICIOUS

PDF

50.5 KB Created: 2020-03-30 15:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 48fd0a3936b96f1da13b20748bbac777 SHA-1: 97813d7e7a1a2db822a928745e05ccc2aa61b1ba SHA-256: 8b92e1c45c33744bf3789ff3026d4175c10a69ce648b1e13b08254647a3e11a4

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO poisoning tactic. The document body contains garbled text but also includes the URL http://michaelshusko.com/uploads/1/3/1/4/131437875/131437875.html#ap+exams+2017+schedule, which is also listed as an external URI. The primary goal appears to be directing users to a multitude of external PDF resources.

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://michaelshusko.com/uploads/1/3/1/4/131437875/131437875.html#ap+exams+2017+schedule
- http://mysteryplus.nl/uploads/1/3/0/2/130288523/ad82257c.pdf
- http://thebeautybeastfit.com/uploads/1/3/0/3/130323360/5290236.pdf
- http://rugandremnantfloors.com/uploads/1/3/0/7/130776779/6fcab96af97d7d.pdf
- http://rachel-alice.com/uploads/1/3/0/6/130621196/6949499.pdf
- http://michelamclaurin.com/uploads/1/3/0/9/130969595/3880a5f372d1949.pdf
- http://johns-tailoring.com/uploads/1/3/0/8/130814516/a441dc.pdf
- http://theselfpromoter.com/uploads/1/3/0/8/130873861/juvakusupatabexeruwu.pdf
- http://tryonsquare.com/uploads/1/3/0/4/130477090/445770.pdf
- http://kimgossettadoptions.com/uploads/1/3/0/5/130539179/d934b3cdb554e.pdf
- http://instituteforrelationshipeducation.com/uploads/1/3/0/6/130620868/lurijajem.pdf
- http://servereserves.com/uploads/1/3/0/7/130740392/5c17d3fe1b31.pdf
- http://jay-maths.com/uploads/1/3/0/2/130288542/rudidamusetubiwal.pdf
- http://rbarti.com/uploads/1/3/0/6/130620919/nipaki.pdf
- http://drcampana.com/uploads/1/3/0/2/130272638/6249439.pdf
- http://chopnmix.com/uploads/1/3/0/7/130739103/zepomidod.pdf
- http://briarmoorpool.com/uploads/1/3/0/5/130550774/gukoxu.pdf
- http://morganlindsey.org/uploads/1/3/1/1/131164497/5d13cf.pdf
- http://c34u.org/uploads/1/3/0/5/130539658/lixinuruzafegi-degex.pdf
- http://lrhkokea.com/uploads/1/3/0/5/130588304/563f02c5.pdf
- http://kmipropertieslimited.com/uploads/1/3/0/6/130639503/b0fb3f.pdf
- http://sempertigris.com/uploads/1/3/0/5/130551299/62f5668.pdf
- http://teaysvalleyvolleyball.com/uploads/1/3/0/4/130490399/9203855.pdf
- http://thescribingboss.com/uploads/1/3/0/6/130604568/jemadukoxeg-zalolux.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000086ff.bin` `673e5872b3b07a83a69d230a9de8895bff36bbc6b9ca5e7f6279316253b73b58`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86FF	8044 bytes
`font_01_sfnt_off0000a643.bin` `b195ba776360337e0c8847a1f70ebf7e776628c0b6b62df72d82cae76b96cbf1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA643	16248 bytes

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