MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm or distribution mechanism. The presence of numerous external URIs and the PDF_SEO_LINK_FARM heuristic indicate a primary function of directing users to external content, potentially for SEO manipulation or to serve as a lure for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://golowaki.ru/123?utm_term=chammak+chandra+skits PDF link annotation
- https://static.s123-cdn-static.com/uploads/4464862/normal_5ffdc41f1d512.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383295/normal_605dd93d8bfaa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450036/normal_5fd72cc7b515b.pdfIn PDF document text
- https://putifunefam.weebly.com/uploads/1/3/0/7/130775131/9914346.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378846/normal_5fffaa2c133c8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492897/normal_604363dc196f6.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4453560/normal_60aff7e438760.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4466172/normal_5fdf3063c3b62.pdfIn PDF document text
- https://tafifomoku.weebly.com/uploads/1/3/1/8/131856516/tenofimonani.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483088/normal_603e58c4e63bc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493221/normal_5fc7c28e409b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366973/normal_6038545cad7d5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417519/normal_605a41144ae74.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://luwivaj.pbworks.com/w/file/fetch/144513651/informative_essay_outline_example.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dcec36a5-3ed1-41a3-b229-37bcf659812b/75213332635.pdfIn PDF document text
- http://wiwedano.pbworks.com/f/53282086227.pdfIn PDF document text
- http://zorisomofi.pbworks.com/f/suligejidon.pdfIn PDF document text
- http://xotokuwawa.pbworks.com/f/dream_chronicles_the_book_of_fire_free_download_full_version.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/81b199b2-0977-4617-8c69-63a641d50d59/brother_hl-2170w_wireless_setup_without_cable.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ed82a10-8b53-4032-9946-e286b2568a67/how_much_does_it_cost_to_rebuild_a_350_motor.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_off0000d946.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD946 | 5116 bytes |
SHA-256: 20731eb70744b69a46884196111f60d06f1c5a06cb7cc8186708a6672a0af63e |
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font_01_sfnt_off0000ea72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA72 | 4852 bytes |
SHA-256: dfb92b56696eac8462f0a408ca594347c7e69245d020a80724fba4eea32c2837 |
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font_02_sfnt_off0000fb8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8D | 10772 bytes |
SHA-256: e3e0e78e8237587cdb86e951cf172a887177a51a539082b59919741be5146ba9 |
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