MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external PDFs hosted on disposable domains, suggesting a link farm or phishing campaign. The primary malicious URL identified is https://yafferge.ru/wix?keyword=kenmore+500+washer+user+manual, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to 'user manual' and 'wkhtmltopdf', likely serving as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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/wix?keyword=kenmore+500+washer+user+manual In PDF document text
- https://cdn.sqhk.co/tilesoxeg/RhaBghC/pugatopuses.pdfIn PDF document text
- http://rumudasejozekes.iblogger.org/egypt_budget_2020_19.pdfIn PDF document text
- http://samelike.site/31001993215i49zv.pdfIn PDF document text
- https://kunugamonigosa.weebly.com/uploads/1/3/1/8/131871761/ffd6be4a16.pdfIn PDF document text
- https://jalesebexiw.weebly.com/uploads/1/3/0/7/130739560/bovulurovisibipijez.pdfIn PDF document text
- https://losaburi.weebly.com/uploads/1/3/5/3/135322327/kepunuwepikufux-wukusorolafinel-jogatuxixe.pdfIn PDF document text
- http://hook-up.fun/catalogue_marjane_juin_2020em7zz.pdfIn PDF document text
- https://dusivasawomila.weebly.com/uploads/1/3/4/6/134660852/magawibonoleselanewo.pdfIn PDF document text
- https://cdn.sqhk.co/merojuniv/i8hhhiY/lizupizoninibaziren.pdfIn PDF document text
- http://lemuxatazewazov.iblogger.org/jogixi.pdfIn PDF document text
- http://msertis.xyz/jijurununuzugitadaldx.pdfIn PDF document text
- https://zelekunidos.weebly.com/uploads/1/3/2/6/132682808/4cc1f474c5.pdfIn PDF document text
- https://cdn.sqhk.co/mukibusu/ig4kZNf/wood_carving_animals_designs.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://557345b1-98c6-442d-b460-9e357c178e5b.filesusr.com/ugd/dfb5f8_3c48905f5ff54bf8bbe892576e30d680.pdf?index=trueIn PDF document text
- http://valodabopovox.rf.gd/report_on_pile_foundation.pdfIn PDF document text
- https://041aa876-b65b-432c-96c0-58c8b295a4e4.filesusr.com/ugd/90d19e_8ba69d114f5841c984d251ed429d5f05.pdf?index=trueIn PDF document text
- https://a26b494c-4f54-4b9d-aaa3-e02d462d315a.filesusr.com/ugd/c6268f_37446298d1624c5daa4a50c8fda5fdd3.pdf?index=trueIn PDF document text
- https://4f65703b-d4c0-4c9c-9e30-73c8cc83ec5d.filesusr.com/ugd/54fa57_87ab9c3720b74fbfb6dd2ef78752e5d1.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_off0001074e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1074E | 5252 bytes |
SHA-256: 6d316a41449bff1e6acf4e5396a8fc7b251d4744856f3ce1bccfc619217267c3 |
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font_01_sfnt_off00011914.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11914 | 11992 bytes |
SHA-256: 33a87ed71831cea2dfa9a6806bdcb83845b43706f5f104ecff5da1a1c608c200 |
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