PDF malware analysis — malicious · 79394287d3559cad

MALICIOUS

PDF

42.9 KB Created: 2020-10-26 08:56:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14

MD5: 6b4bb1f63cb1c021119c5ac59f104ffb SHA-1: d3ee03e41c65ce19f48347ac1f301bf9193f103d SHA-256: 79394287d3559cadf87b1eb0839cca7d4089dab79725730d0006a5b1235018b5

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ggtraff.ru/wb?keyword=engineer%20job%20description%20pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4366389/normal_5f885a1d5800d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381971/normal_5f8d51ca58afb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379613/normal_5f91e627ed15c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366666/normal_5f875c1ce0274.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368265/normal_5f88f7fcc318a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389104/normal_5f906a9f5531e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392650/normal_5f93b68d39d2e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365589/normal_5f89d17f38877.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375344/normal_5f922bbe3c59d.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/wiwuxot/15207642995.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/tunap.pdfIn PDF document text
- https://s3.amazonaws.com/jolituzoji/vixexexisotedumenuzaza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8377f702-de4d-474d-9d26-2e612a2dcd91/principles_of_biology.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/167aff2d-b666-490a-87aa-02ebcee66021/88244288836.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/031404e4-fb7b-4519-aaa9-6c602666aabf/96688084171.pdfIn PDF document text
- https://s3.amazonaws.com/wuniku/artropodos_caracteristicas_generales.pdfIn PDF document text
- https://s3.amazonaws.com/jazuravazaguz/variable_valve_timing_intelligent_system.pdfIn PDF document text
- https://s3.amazonaws.com/fajeloninesitel/reduced_adverb_time_clauses_exercises.pdfIn PDF document text
- https://s3.amazonaws.com/punurum/62449775561.pdfIn PDF document text
- https://s3.amazonaws.com/sojaxub/85710018084.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_off000069aa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69AA	5252 bytes
SHA-256: `e9ba512c89c0ce78d963c1b98a8831a4a1dda147be881bf0aa0ff554feec55d6`
`font_01_sfnt_off00007b9a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B9A	10192 bytes
SHA-256: `5a6befd52c5da1c56902f43e79a5e94bf6d254899312742416bef48444435805`

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