PDF malware analysis — malicious · 5d83a4a3f1c7093e

MALICIOUS

PDF

47.0 KB Created: 2020-10-20 14:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18

MD5: 1d057a7c277d0dc05179d499f74d6faf SHA-1: cd747705c903386fdb42471b7889fe7f55c2f9c8 SHA-256: 5d83a4a3f1c7093e8cd480b934ae4f733ce4b3426ea035b1a3cc7f6d16811b1e

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://ttraff.ru/123?keyword=basics+of+internal+combustion+engine+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4367308/normal_5f88ff3edde33.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374838/normal_5f8dab485b783.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384142/normal_5f8c1c27a5398.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369912/normal_5f8b4e766a7dc.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/xenemavurinap_jokepirewiteda_fijalezej_gemewije.pdfIn PDF document text
- https://rogidalot.weebly.com/uploads/1/3/1/6/131636841/jilowexomosivi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379846/normal_5f8b70ccad568.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369505/normal_5f893232c57a2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378641/normal_5f8d0edf1dc66.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366022/normal_5f8afac772ada.pdfIn PDF document text
- https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/ea24a6.pdfIn PDF document text
- https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/d1fdc5184e8288b.pdfIn PDF document text
- https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/monow.pdfIn PDF document text
- https://rutaluxunenore.weebly.com/uploads/1/3/0/7/130740368/lilelefumowugor-fugirurizeta-dobipebebimipa-dapolog.pdfIn PDF document text
- https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/batagebexi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/4714/7925/files/61092018713.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/7916/6873/files/vertex_to_standard_form_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/8721/4765/files/gartic_io_1.4.11_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2050/9596/files/81813616918.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006b06.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B06	5548 bytes
SHA-256: `b4703282424cfbd3c6f5b22e7d14a9a47b0925799506983c09fec4d8782ed949`
`font_01_sfnt_off00007dae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DAE	10288 bytes
SHA-256: `39b5b63ecebbe4fd80f7310f687d16454f1b893828a84eb648e50ab7182e55fc`
`font_02_sfnt_off0000a0d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA0D3	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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