PDF malware analysis — malicious · 2f88f50cc54779ee

MALICIOUS

PDF

37.6 KB Created: 2020-11-06 19:17:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: d57af9d04e0ee52a0db375d5ba114e9a SHA-1: bbdd0cd9d1663675f66a1301d6c24d7d00af0e82 SHA-256: 2f88f50cc54779ee48eeaf4fde008809c3781d219b75a106bc2565263d336b07

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://traffset.ru/aws?keyword=busch+gardens+weather+tampa PDF link annotation
- https://cdn-cms.f-static.net/uploads/4421213/normal_5f9c07000f68d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408004/normal_5f9aff46a94e3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389108/normal_5fa1bdfd65987.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/vezosoluvezoj/movement_along_the_supply_curve_is_most_likely_caused_by_which_of_the_following.pdfIn PDF document text
- https://sisiviweze.files.wordpress.com/2020/11/goresosuvufat.pdfIn PDF document text
- https://xevaneseram.files.wordpress.com/2020/11/neuroanatomia_funcional_angelo_machado_3_edio.pdfIn PDF document text
- https://tibepitetuj.files.wordpress.com/2020/11/23116953777.pdfIn PDF document text
- https://s3.amazonaws.com/dazifozixawus/bhagavad_gita_as_it_is_iskcon.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files2/79850312892.pdfIn PDF document text
- https://s3.amazonaws.com/zerepuzuze/renaissance_periodization_download.pdfIn PDF document text
- https://s3.amazonaws.com/fidefofudi/pawadejujosidogogisuvomuk.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_off0000512a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x512A	5596 bytes
SHA-256: `8cedcb96d4859c4ae997b10f3be6997e705ad37937ed4ba2eaed8ebd6f582005`
`font_01_sfnt_off0000641d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x641D	11688 bytes
SHA-256: `5c4cfa400faa47945ef2bbd354652054266147f0bc7d0fc7ae2c446c8774ab9a`

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