PDF malware analysis — malicious · a7a8082ded010eb0

MALICIOUS

PDF

49.0 KB Created: 2020-11-06 02:06:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: 76a578b8cc8cd59c597646ce9456ceb0 SHA-1: 1b18b46e7d682325b937456c29d99e3dad1b2379 SHA-256: a7a8082ded010eb0af308c1b9c4b757162fe1b6c83ea13cb7285f626c3502be3

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/aws?keyword=monocot+vs+dicot+seed PDF link annotation
- https://cdn-cms.f-static.net/uploads/4375509/normal_5f8fc5d958d46.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/sefipa/84452862935.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/987f514f-55b2-4a7e-bf97-ef138493a6ac/35483787978.pdfIn PDF document text
- https://s3.amazonaws.com/zokokamu/37063598491.pdfIn PDF document text
- https://s3.amazonaws.com/rufonali/element_55_inch_tv_wall_mount.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49985ef4-ea55-4e19-849e-78d71dbd5c99/reinhard_bonnke_cancer.pdfIn PDF document text
- https://s3.amazonaws.com/woberiz/pixok.pdfIn PDF document text
- https://s3.amazonaws.com/zetare/2731513589.pdfIn PDF document text
- https://s3.amazonaws.com/sezutuma/bu_de_bu_ai.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc9599ef-f877-4b0d-a3e5-7d7d7e253b57/87782227115.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7850d05a-2316-4df0-8532-729b3e950865/marigolds_by_eugenia_collier_notes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62fb9cd9-6290-447c-a400-6ce0c15266d5/40514941884.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_off0000823c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x823C	4660 bytes
SHA-256: `d4081b580d68e3770c9c0d3915d3e7951a025a34a75ddcd37e0e56a4c9af9f12`
`font_01_sfnt_off00009241.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9241	10856 bytes
SHA-256: `a356ca430139bcc39750f69be138cb323a19d4c7546e2e669e0c63b63236c258`

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