PDF malware analysis — malicious · fdcba146609ada77

MALICIOUS

PDF

40.3 KB Created: 2020-11-08 08:19:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: f7e230d4001eea78a31b2ea22455173c SHA-1: a162c095d8cf4bdbc2f953bc1ac998b5ca10a7fb SHA-256: fdcba146609ada77b8ac6e68be717ca3b354d1333b811801cb2892e3dfa3b13a

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=2015+f150+transmission+fluid+capacity PDF link annotation
- https://cdn-cms.f-static.net/uploads/4384048/normal_5f9470c964067.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387718/normal_5f9f29dfc8653.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370078/normal_5f899eddec991.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371005/normal_5f91384894718.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fazizanubud.files.wordpress.com/2020/11/burdel_las_poncianas_de_chiclayo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d2b8b61-fbe7-4d1d-a016-2ae12c0eff14/90945744604.pdfIn PDF document text
- https://wuzunujatipi.files.wordpress.com/2020/11/50453417444.pdfIn PDF document text
- https://s3.amazonaws.com/nijudow/30229018130.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e4b4fe6e-5b65-4b59-919f-ab0c657df318/sniper_assassin_5_level_codes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f804234-9a19-459c-ba88-bee271b1d570/nudanutuxakadufadus.pdfIn PDF document text
- https://s3.amazonaws.com/wotodedaruzuk/73450861316.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_off00005ec1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EC1	5756 bytes
SHA-256: `b4b10ded593df3a83cf67fe7f2c2fc6ce00324717da9a115e23b54edcbb1fd9f`
`font_01_sfnt_off00007256.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7256	9796 bytes
SHA-256: `c85df5eabd4e36b7a18f565a02c103bba099f58afc0a97d9a35b0ed47f6eb7d0`

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