Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ccbd77f4c56541…

MALICIOUS

PDF

48.9 KB Created: 2020-04-02 13:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b7d2485262c80e619d101fc5f031cfd8 SHA-1: c2caab7bff425d3341c93536c3d5bc9996c08481 SHA-256: 97ccbd77f4c56541384390db5bef8bb44d572b34b9d7c78b408951915df08d2a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary URL found is http://mrstruitt.com/uploads/1/3/0/9/130969813/130969813.html#el+desarrollo+embrionario+de+los+oviparos. This suggests the document's purpose is to redirect users to a network of sites, potentially for SEO spam or to host further malicious content. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mrstruitt.com/uploads/1/3/0/9/130969813/130969813.html#el+desarrollo+embrionario+de+los+oviparos
    • http://campbosco.net/uploads/1/3/1/3/131383674/lugosepimuku-xinususaw.pdf
    • http://cinemillion.com/uploads/1/3/0/6/130621458/kovejonezuwu.pdf
    • http://petsinsunnies.com/uploads/1/3/0/6/130620934/pavazezagufopi_zeliwunobisewi_taligenawa.pdf
    • http://style-beme.shop/uploads/1/3/0/9/130969536/lodoxoteziluper_godaluguzakojet.pdf
    • http://beavessel.org/uploads/1/3/0/6/130604078/83284e781.pdf
    • http://tikalbuildingandhomesolutions.com/uploads/1/3/0/5/130588418/bawefawujugezo.pdf
    • http://novasparockyhill.net/uploads/1/3/0/7/130739201/figajadur.pdf
    • http://strotheradamshomes.com/uploads/1/3/1/1/131163774/xejoguribenur-movavibivok.pdf
    • http://commanderschoice.com/uploads/1/3/1/1/131163772/tobeg-dirimoriwefa-riwuvororate-vemadidejig.pdf
    • http://systemsuitabilityanalytics.com/uploads/1/3/0/2/130272470/657806.pdf
    • http://rentinumbria.net/uploads/1/3/0/8/130813973/jofila.pdf
    • http://princessjewelbymirna.com/uploads/1/3/0/7/130775396/xufodurijazijax_vomuferubax.pdf
    • http://wvwprohaska.com/uploads/1/3/0/5/130551687/kalosonoweluw.pdf
    • http://migllc1.com/uploads/1/3/0/5/130540767/pukexubofo-ranasabigif-gilug-sagigizoniduwon.pdf
    • http://photoboothfancy.com/uploads/1/3/1/3/131379612/2236447.pdf
    • http://blikpsychologie.nl/uploads/1/3/1/1/131163836/52893.pdf
    • http://jasonleiter.com/uploads/1/3/0/2/130289377/42f6661c4.pdf
    • http://myautologic.com/uploads/1/3/1/3/131381910/joxixanubesipuvedu.pdf
    • http://johnnybluemusic.com/uploads/1/3/0/4/130489833/ronobevikewut.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_off00009338.bin
172afe75f04ab0b119a60f8ba69a05f67b615e3de2e6d1ec0147bcbcf6f8b3dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9338 9100 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.