PDF malware analysis — malicious · 80b34d0dd45581ec

MALICIOUS

PDF

45.3 KB Created: 2020-11-06 05:15:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: b4e05b97bc161aa54095e4afea368602 SHA-1: 0698ed666473c3e78007b925058dc4459c7d4cba SHA-256: 80b34d0dd45581ecc5edcf64780753539e1af8c3123ae17bb3ad6e5a9ced07eb

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://trafffe.ru/123?keyword=id+instate+reviews PDF link annotation
- https://zenisitidijo.weebly.com/uploads/1/3/4/3/134309999/xitofib.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366976/normal_5f8a99f8d838e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369784/normal_5f9c57873a96f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371514/normal_5f9f8452dab4b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387571/normal_5f8f25bf3363f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/abd99a35-ad99-4644-bf26-ea32d473c0ef/jenodiwofuziwazasafowomut.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45254796-b0c1-46a3-9804-c758f7a98f2d/5.3_stroker_crank_for_chevy.pdfIn PDF document text
- https://s3.amazonaws.com/vonusirukete/chocolate_fondue_set.pdfIn PDF document text
- https://s3.amazonaws.com/fodose/55412264031.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/78ff37e4-7496-49e1-ae3d-443f051dc693/30872967570.pdfIn PDF document text
- https://s3.amazonaws.com/nuxulikiwab/wukefiregepuvobalavutaw.pdfIn PDF document text
- https://s3.amazonaws.com/subud/fadiv.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_off000074ec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74EC	4876 bytes
SHA-256: `3592e5e642b076ef68c0884b54dc553f75ecdf14ecc6ff3e1930f28240015ccd`
`font_01_sfnt_off000085a3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85A3	10520 bytes
SHA-256: `a9af8ba164957ae9d6f2fc458bc387feae825924f9af98b155a1269acf3a7cc0`

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