PDF malware analysis — malicious · 4521a8244222c731

MALICIOUS

PDF

54.0 KB Created: 2020-04-02 00:48:46 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: b7f53a1f3cd67607d2a7e6c73a6a5ceb SHA-1: 4d2c5eba2c681fbda82335032daa20f5cb37b119 SHA-256: 4521a8244222c731f738ed21c0fd3cef1fdee95cc5299bf5f86cddadfdf12c4c

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of a link farm, with numerous external URLs pointing to other PDF files hosted across various domains. The ML classifier strongly indicates maliciousness. The primary attack pattern involves directing users to a large collection of external PDFs, likely for SEO manipulation or to serve malicious content. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://hardhathomeinspection.com/uploads/1/3/0/5/130590036/130590036.html#definicion+detergentes+cationicos
- http://politicshirts.com/uploads/1/3/0/6/130605124/7634497231c.pdf
- http://anansiadventures.com/uploads/1/3/0/5/130589385/tasazodu-popedew-valaguxa.pdf
- http://avalonprincessparty.com/uploads/1/3/0/6/130639517/8786537.pdf
- http://myacec.com/uploads/1/3/0/9/130969170/walewemojekoze.pdf
- http://pawsitiveffect.com/uploads/1/3/0/7/130738764/702174720a41f2.pdf
- http://elitetherapynycom.com/uploads/1/3/0/5/130539933/rimukupeladadize.pdf
- http://sharonekstrom.com/uploads/1/3/0/6/130640183/8836735.pdf
- http://oilgenies.com/uploads/1/3/0/7/130739212/sosominifir_niwikojilinixi.pdf
- http://thebritishhotel.net/uploads/1/3/0/5/130542908/2d8f111ae1.pdf
- http://lachesnaie72.com/uploads/1/3/0/7/130775920/xomazusu_kumomadefo.pdf
- http://eltservicesllc.com/uploads/1/3/0/7/130739970/gadafedi.pdf
- http://cncstitch.com/uploads/1/3/0/8/130874148/8475e05894e6a.pdf
- http://worldclasssurf.com/uploads/1/3/0/4/130476162/926929.pdf
- http://osvaldogiuliani.com/uploads/1/3/0/9/130969862/sijuwaxitile.pdf
- http://menstrualmall.com/uploads/1/3/0/4/130435600/68c966.pdf
- http://createapowerfullife.com/uploads/1/3/0/9/130969332/7273f2d2fd.pdf
- http://jacksondayjr.com/uploads/1/3/0/6/130605312/tiliv.pdf
- http://kissingerleadership.com/uploads/1/3/0/6/130603842/398e2.pdf
- http://ceremoniescelebrations.com/uploads/1/3/0/4/130483232/nagava_gisetoku_jibikege_nozenaji.pdf
- http://equipajedemano.com/uploads/1/3/0/7/130738896/42feb2d0.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008a48.bin` `03c4f82c89254734bc74281a130c41ca84aeecf1fd7a36e98bbb04598432441e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A48	9172 bytes
`font_01_sfnt_off0000ab85.bin` `e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAB85	2652 bytes
`font_02_sfnt_off0000b4ec.bin` `779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB4EC	16036 bytes

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