MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, appears to be a lure related to car cleaning, directing users to external URLs like 'https://nipisod.ru/strik?utm_term=what+do+i+need+to+clean+the+interior+of+my+car'. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://nipisod.ru/strik?utm_term=what+do+i+need+to+clean+the+interior+of+my+car PDF link annotation
- https://cdn-cms.f-static.net/uploads/4468554/normal_601eff300cf01.pdfIn PDF document text
- https://zopiwaseka.weebly.com/uploads/1/3/0/9/130969839/6229297.pdfIn PDF document text
- https://tifidanubaliso.weebly.com/uploads/1/3/2/7/132740836/7220356.pdfIn PDF document text
- https://bafuzonexive.weebly.com/uploads/1/3/0/7/130739369/3440218.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421780/normal_600bcbba651ad.pdfIn PDF document text
- http://kusukeluwabe.mywebcommunity.org/python_programming_for_beginners_book.pdfIn PDF document text
- http://jnatural.space/59064225543kcsed.pdfIn PDF document text
- http://davorivugexawu.sportsontheweb.net/ap_calculus_bc_practice_exam.pdfIn PDF document text
- http://garantiya62.ru/475298508829fk1i.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475209/normal_5fd77a1e580bf.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382201/normal_5ffdb711cd31e.pdfIn PDF document text
- https://busemuvida.weebly.com/uploads/1/3/4/6/134643921/1320069.pdfIn PDF document text
- https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/fitedaloja-jarobenorubodaj.pdfIn PDF document text
- https://gaxowaxogofesix.weebly.com/uploads/1/3/4/7/134719425/rulanazejipimakonivi.pdfIn PDF document text
- http://vulufinagi.mypressonline.com/java_8_stream_map_collect_example.pdfIn PDF document text
- https://fimufezav.weebly.com/uploads/1/3/2/3/132303131/vibidetulef-laginok.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366017/normal_5fe977bd980f5.pdfIn PDF document text
- https://peniluvemafoni.weebly.com/uploads/1/3/4/7/134705148/xijetiwa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471958/normal_60553073682a2.pdfIn PDF document text
- http://s7hmus.org/qiaquick_pcr__gel_cleanup_kit_protocolsgurt.pdfIn PDF document text
- https://pufakifitapota.weebly.com/uploads/1/3/4/5/134581323/fuxipile-toginisuwajoj-gupog-genezo.pdfIn PDF document text
- http://xokebidukefu.getenjoyment.net/pigojasije.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://pudolajuji.atwebpages.com/corporation_bank_account_closing_form.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_off0000f7b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B4 | 5196 bytes |
SHA-256: 1909b20c30d3ff8bbfd4e4f9768e8a13b4cf3cae9573396f7033d87c6b0b9bd0 |
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font_01_sfnt_off0001094c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1094C | 10332 bytes |
SHA-256: c9a1d43e08bb2ba662389fff5fa73c12edb40e754344c34b42070ba11322591b |
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