MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://yafferge.ru/strik?utm_term=volkswagen+canada+service+prices', which is likely used to redirect the user to a phishing or malware hosting site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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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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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://yafferge.ru/strik?utm_term=volkswagen+canada+service+prices In PDF document text
- https://cdn-cms.f-static.net/uploads/4390999/normal_60437f7bb6376.pdfIn PDF document text
- https://cdn.sqhk.co/tavaxikanabu/jehjKjd/72939422772.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374968/normal_5ff15c0f398ad.pdfIn PDF document text
- http://xanusojuruxu.sportsontheweb.net/properties_of_bernoulli_distribution.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459025/normal_5ffdee2671665.pdfIn PDF document text
- http://vikiduxa.mywebcommunity.org/14284047910.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479212/normal_6058dc6d3edc1.pdfIn PDF document text
- https://cdn.sqhk.co/tefegegesuxe/7hdghNH/calculator_app_for_windows.pdfIn PDF document text
- https://cdn.sqhk.co/boxadiweteve/QhftCPN/theeratha_vilayattu_pillai_bgm_in_masstamilan.pdfIn PDF document text
- https://cdn.sqhk.co/wobimore/bEH8Fia/star_wars_galaxy_of_adventures_movie.pdfIn PDF document text
- https://cdn.sqhk.co/tisufupujeli/dniaidw/suxexaxuvototanemo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459170/normal_5fd09db1b2a30.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/744c09d0-86e2-416c-bb00-a3630a191207/26482443255.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/347b1fbc-a74b-45b2-af5d-1bc2419d55b7/what_were_the_major_patterns_of_native_american_life.pdfIn PDF document text
- https://8b83d164-5e56-46cc-b941-48f48810ddf3.filesusr.com/ugd/76ce43_5192bb065e4e4151a40fa4a3a222b69f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/01b2e80a-4a9b-4e66-88d9-410e75374869/cambridge_ielts_book_9_listening_test_3_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/356aaddb-8f6c-439a-a7e6-e7acd80f4fee/how_to_set_up_lorex_camera_on_iphone.pdfIn PDF document text
- http://rigidafavubo.myartsonline.com/nawegu.pdfIn PDF document text
- https://c335e157-9962-4e43-983a-f5fcf491c4e2.filesusr.com/ugd/a09b09_260a6f5698184b3c9ba8d3f36dc528c4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/db49fdf0-a0b8-4e69-8987-cd94de4c4d63/magnum_energy_inverter_ms2000.pdfIn PDF document text
- https://ac3db616-04cb-40f1-8357-c67041f5e20c.filesusr.com/ugd/eda9ba_11d44e1123c348f99432e37b33c2ae03.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a13f46aa-268d-4de5-83d8-f881379458b3/mossberg_590a1_retro_accessories.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be2554d5-dae0-4bde-b635-327d75acbea9/buy_blink_charging_stock.pdfIn PDF document text
- https://db6d201d-bdff-4648-9982-d9cfaac7639e.filesusr.com/ugd/98857b_d7a0b0f95ae34f049df74b9dd4258e4a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9c5a8309-f5b1-45e5-a748-1740f8a12178/left_testicular_artery_origin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/64006da4-c0a0-4caa-96a4-40f35eecbbe0/large_law_firms_in_morristown_nj.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_off0000f5e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5E3 | 5420 bytes |
SHA-256: b827d424f4c1fe956b7eda357c20936ac774dc90b9fe72db562a62ce71540c54 |
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font_01_sfnt_off00010880.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10880 | 11212 bytes |
SHA-256: d5ddd40e1be5e1a4cb13a296188f9f81cf90e08c785b5127824c9f319d1862fc |
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