PDF malware analysis — malicious · e8fc2888416d79a7

MALICIOUS

PDF

41.2 KB Created: 2020-11-08 07:17:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 71dbf669c001e17d14632920ed7f81f0 SHA-1: d2ab1657a2eb7b60dbbe99d07a3bdf5b1b7e3449 SHA-256: e8fc2888416d79a772f459b7143dd269d6369c66be89dbff8a60096ab8743028

76 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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 https://trafffi.ru/123?keyword=grim+dawn+shrine+locations+forgotten+gods PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387244/normal_5f9000d7ad35e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387811/normal_5f993563758a2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404105/normal_5f93cc8a05590.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366319/normal_5f89e90ce106c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365562/normal_5f8700a4495b8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/vuforewebub/zimuteza.pdfIn PDF document text
- https://s3.amazonaws.com/fejenijovekozu/navy_start_guide_2019.pdfIn PDF document text
- https://s3.amazonaws.com/liguwubore/marc_pro_plus_charger.pdfIn PDF document text
- https://s3.amazonaws.com/novipaliwid/hancock_whitney_bank_login_page.pdfIn PDF document text
- https://s3.amazonaws.com/timafatafej/warmane_sub_rogue_pvp_guide.pdfIn PDF document text
- https://s3.amazonaws.com/xumakomowi/wonderbook_jeff_vandermeer.pdfIn PDF document text
- https://s3.amazonaws.com/fadobirak/40877716257.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006157.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6157	5556 bytes
SHA-256: `d5c0fa842d6abd4c7b1ab3c3916a15d1b03b91699768e1aafc2e04ff81f2ce77`
`font_01_sfnt_off00007426.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7426	10368 bytes
SHA-256: `83713976c690671b3e4b8e741a4e0e5416fe921d30802bb4d160ee604b0dbc68`

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