MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The 'SE_CALLBACK_LURE' heuristic suggests the document is designed to trick users into calling a phone number, consistent with phishing or scam tactics. The presence of numerous external links, many pointing to disposable hosting, further supports a malicious intent, likely to redirect users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 7
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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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://zajinet.ru/strik?utm_term=how+to+block+calls+on+my+panasonic+phone PDF link annotation
- https://tutowori.weebly.com/uploads/1/3/5/3/135317166/7135674.pdfIn PDF document text
- http://intekzafast.online/cheque_bounce_notice_under_section_138_formatcjl97.pdfIn PDF document text
- https://gigotuvo.weebly.com/uploads/1/3/1/1/131164366/fikubokedezoselogu.pdfIn PDF document text
- http://mmmmmme.space/685593512780rl5.pdfIn PDF document text
- http://academic-club.ru/20937740941b73sq.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369161/normal_600c05be325e8.pdfIn PDF document text
- http://justiciaforjustice.com/fozinunexalopanntksw.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380413/normal_6013216e8579e.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/ccfd4358-48e9-4e5f-8eaa-ee27b79b5993/what_does_ren_kou_mean_in_mandarin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f148e8cc-58aa-4e02-ade5-bf9211c8c238/vivofit_jr_2_bands_target.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c44b00a7-d1e3-4b03-af93-c24e9fed74a0/how_to_work_legs_with_resistance_bands.pdfIn PDF document text
- http://lutidufewujasa.epizy.com/lagu_bintang_di_surga_cover_sas.pdfIn PDF document text
- http://widurema.epizy.com/greater_bay_area_china.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/378bb506-0117-4d1b-9c4c-c77c45760357/vikarirogijodunox.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d96970cf-3a8a-4bf6-9b24-bb59f4137194/definicion_de_investigacion_no_experimental_segun_autores.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9034dee8-9275-45b4-b13a-af78c794c3af/sas_interview_questions_for_experience.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a94bd950-f3f8-45d1-b184-595de60c4af5/explain_hue_saturation_and_value.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_off0000e521.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE521 | 5436 bytes |
SHA-256: 1400be81332e2bd16b230be4429b2480def20d05835b6c7ca68120048c498a36 |
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font_01_sfnt_off0000f790.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF790 | 10716 bytes |
SHA-256: f2f09eb9f3f87b832886a946231cf4023df74cd64c51575102e801222507757d |
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