MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with a primary one pointing to 'pelibifir.ru' which is flagged as a link farm on disposable hosting. Heuristics indicate this is a callback phishing lure, consistent with a tech-support scam or refund scam. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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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://pelibifir.ru/wix?keyword=modernist+cuisine+pdf+free PDF link annotation
- http://top-odejda.com/jarusurasotegelomabageto93ph.pdfIn PDF document text
- http://koparikamoze.scienceontheweb.net/zinikosimokusuwosuzafug.pdfIn PDF document text
- http://dalidusiz.mywebcommunity.org/visual_data_analysis_techniques.pdfIn PDF document text
- http://mudixefibewab.mywebcommunity.org/61456993743.pdfIn PDF document text
- https://petirinupupa.weebly.com/uploads/1/3/1/4/131438611/154bc8f70.pdfIn PDF document text
- http://maritimog.medianewsonline.com/abo_blood_group_system.pdfIn PDF document text
- http://lestyprin.online/78808296660j0ytg.pdfIn PDF document text
- http://apsmall.space/cse_investor_guideudljr.pdfIn PDF document text
- http://zotoxilob.getenjoyment.net/cycling_merit_badge_workbook.pdfIn PDF document text
- http://tapozifokun.mywebcommunity.org/are_disney_world_fireworks_cancelled.pdfIn PDF document text
- http://winfreeiphone.xyz/how_much_are_tv_stands_at_walmartfkgdr.pdfIn PDF document text
- https://ruzoriro.weebly.com/uploads/1/3/5/9/135975417/2633334.pdfIn PDF document text
- https://padobijitoxu.weebly.com/uploads/1/3/1/0/131070591/d54c7e.pdfIn PDF document text
- https://newakikijako.weebly.com/uploads/1/3/4/3/134351088/9036210.pdfIn PDF document text
- http://roboludawu.mywebcommunity.org/binomial_theorem_calculator_symbolab.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fd01a0c1-3a12-4c3a-bf6b-9bb85f9b1b15.filesusr.com/ugd/f9d4cd_f189ac69de654842afd9f8551c60880a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/455e6992-fb67-4ffb-85d6-9b15058de3f8/kayak_merit_badge_workbook.pdfIn PDF document text
- http://vawirir.atwebpages.com/wuzukokotaxakejekise.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d7d0877-b509-434d-b8e2-e60732f8fa06/why_are_official_statistics_reliable.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60b942a0-333d-4fda-9fec-d63cdccbec47/kuninim.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a09ed90-add2-40cc-9533-8f43cdf1e6d4/73720826230.pdfIn PDF document text
- https://366cd995-4ddf-4220-a197-7cea849caf0e.filesusr.com/ugd/947062_b182b5e6fa3741f9a60218d369468f95.pdf?index=trueIn PDF document text
- https://b67fa923-03b4-4d21-b555-95ff628d7525.filesusr.com/ugd/1d4b90_0bc583affa044f26a8ee535814c75097.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_off0000d2cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CD | 4912 bytes |
SHA-256: 4df81bc34884fc62075717a57fa8e7f86056b63de45e108804eddb3b2e510169 |
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font_01_sfnt_off0000e3a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A7 | 11124 bytes |
SHA-256: bc15faae37ccbc836f65ce281d291084773b6f99458fb16b4483b754c872877a |
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