PDF malware analysis — malicious · 425dba5a028be6be

MALICIOUS

PDF

47.8 KB Created: 2020-10-19 01:32:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15

MD5: 53a1d2db9d4323d4d760be0507c9f45e SHA-1: 2cd57945b222ae1923fabf29e95c6df824498abd SHA-256: 425dba5a028be6bee57156635b9521066d83398fdf14cd3255573a79ff579935

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://ggtraff.ru/wb?keyword=manual%20qlab%20castellano In PDF document text
- https://cdn-cms.f-static.net/uploads/4366004/normal_5f87072dcf87c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366313/normal_5f8acee71fb56.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369183/normal_5f88ada24b17e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368955/normal_5f880ab92ed8c.pdfIn PDF document text
- https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/kevokifisosasa.pdfIn PDF document text
- https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/rebodi.pdfIn PDF document text
- https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/30df3b1ae3bc55.pdfIn PDF document text
- https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/5415284.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369309/normal_5f8cab16ab96e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375696/normal_5f8c409d7eeab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369502/normal_5f8cb0b51677a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366304/normal_5f8b049f34c0b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370304/normal_5f8b9f51d24fd.pdfIn PDF document text
- https://netulomite.weebly.com/uploads/1/3/2/8/132814473/nofuxebunem.pdfIn PDF document text
- https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/degip.pdfIn PDF document text
- https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/2697538.pdfIn PDF document text
- https://lirebuzufosol.weebly.com/uploads/1/3/1/4/131453665/04b00b6d5cd.pdfIn PDF document text
- https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/3109733.pdfIn PDF document text
- https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/ee1b44a.pdfIn PDF document text
- https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/wosidowut_detit_legulidove_zomujek.pdfIn PDF document text
- https://xovadodelemowuz.weebly.com/uploads/1/3/1/3/131383330/rurezujas-tukijunaworixeg-zisijebi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8969/0773/files/sample_letter_to_beneficiaries_of_trust.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/9929/4363/files/zejajeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6728/4387/files/rizofati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0498/3871/9131/files/get_air_erie_hours.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_off00006e10.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E10	4968 bytes
SHA-256: `4810895d71175b7247503572b106ee81063a0017c90c9a6dddb9333b2a2c4b43`
`font_01_sfnt_off00007f03.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F03	2860 bytes
SHA-256: `98d2b2b35b69bc9608cbf80719aa6dc0a6a21300cc54c6a5de2c62d4fc3b6f5f`
`font_02_sfnt_off00008b41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B41	11072 bytes
SHA-256: `c0802dbdd61110f07749400b16cc817a96b3adf04eea23208faafd72056583fb`

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