MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://dafemum.ru/123?utm_term=cardboard+sheets+cut+to+size PDF link annotation
- https://cdn.sqhk.co/palezubifo/f5d5ihd/slice_and_dice_weakaura_bfa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369775/normal_6038c947589dd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458145/normal_6035016344e49.pdfIn PDF document text
- http://tuvijanavodena.22web.org/97514711898.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4457318/normal_600817a258ea7.pdfIn PDF document text
- https://cdn.sqhk.co/letarezetap/6hdigjb/calligraphy_fonts_free_marathi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414498/normal_6054aeb05b724.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4500183/normal_5fcff07c5285e.pdfIn PDF document text
- https://cdn.sqhk.co/teketerep/24hgSha/83306920795.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/68afead6-4396-465e-ba10-f8215f4ead86/defigatapufupajamotaj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88c30c95-e039-4d00-ac08-e2c62325a0a1/26914587377.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/db9e5ef3-e305-4735-bdf4-530a6a2fe334/15533413444.pdfIn PDF document text
- http://buzanone.epizy.com/tunibabatomaxubutuf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fbb5470a-6552-42c6-aab5-086b66575530/bertrand_russell_quotes_government.pdfIn PDF document text
- https://ad5375d1-0dc8-447d-a54b-f1659eeba1ba.filesusr.com/ugd/a4ba79_d988f51f24b54a48b84beb48cfa2648a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9772a101-0025-4549-a46b-f75e52a8b1a5/sepamewa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3bdd2d00-d571-44ee-a51b-4018fa0c5470/fedex_international_tracking_customer_service.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f89de25c-bc48-40ad-bf38-4b980058b122/8068340184.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d7f3a1e-552e-4795-a1b3-1f383261ee89/21396163267.pdfIn PDF document text
- https://29159626-56e2-4eb2-a8c1-eb081f451e44.filesusr.com/ugd/a58502_d0e5bab78d524dd499b5e3027ff4c735.pdf?index=trueIn PDF document text
- https://4ac36a2f-1533-488b-b282-cf34cdace458.filesusr.com/ugd/bcfc12_6626c30572cf469fb1fea3a97030f379.pdf?index=trueIn PDF document text
- https://73f4d879-981c-49fe-abc7-520f36a14a84.filesusr.com/ugd/b77b08_7321f77feebc4c55b7d006ce8d2adad3.pdf?index=trueIn 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_off0000d400.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD400 | 5088 bytes |
SHA-256: 145577a9e3cf71ae0c2b935223bf0477c2bee6cf27cd9b8d0f9d191c38edb740 |
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font_01_sfnt_off0000e545.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE545 | 9812 bytes |
SHA-256: 6b90b0a9e711e938003d9ebd4740a76dadce9c35ccb36bb62d09ee673b720e4e |
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