PDF malware analysis — malicious · 917693dd55f29f09

MALICIOUS

PDF

42.2 KB Created: 2020-11-06 21:26:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: 053e3d7d7029576ef05cd1046c959c2f SHA-1: 6c859834fd003410f5b11b99e2a775c648bd3cc7 SHA-256: 917693dd55f29f09ddef18e1bf5267ab1cc95d9565041076a1e360e04b0e28e9

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/123?keyword=is+it+2020 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4450141/normal_5fa3158a5ba16.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373522/normal_5fa51092203ac.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409811/normal_5fa0a435e5a7e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373517/normal_5f8db3ab7c795.pdfIn PDF document text
- https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/1429013.pdfIn PDF document text
- https://lixojubenolida.weebly.com/uploads/1/3/4/3/134375882/e01401cd937.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376120/normal_5f9584662e8ef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367645/normal_5f87a751e1650.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/susopuzupure/wijumobavopuwuxinevijud.pdfIn PDF document text
- https://pazeden.files.wordpress.com/2020/11/86767518253.pdfIn PDF document text
- https://likuzow.files.wordpress.com/2020/11/40264502684.pdfIn PDF document text
- https://juvibix.files.wordpress.com/2020/11/gabizagamumarokidatanum.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_off00006928.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6928	4552 bytes
SHA-256: `d53bb2ceead05a73f2be278d8c93062169201a40440da6dff5e5db9a5349b576`
`font_01_sfnt_off000078bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78BF	10308 bytes
SHA-256: `7f9076ee0b394e311a880aa9c9c6e0a3f727ab69aaff95fbf23d7dfec703e8d1`

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