MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of external URIs and its classification as a link farm suggest it's designed to redirect users to potentially harmful websites. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the idea that it's a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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 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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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/award?keyword=wash+dc+metro+map+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4373522/normal_6056ec5648a0d.pdfIn PDF document text
- https://cdn.sqhk.co/vefusujix/G1Vhe31/vuxabaruraken.pdfIn PDF document text
- http://tiwilofojifig.sportsontheweb.net/understanding_canadian_business.pdfIn PDF document text
- http://sinoxaju.mygamesonline.org/the_book_thief_ebook_download.pdfIn PDF document text
- http://tuzotumefakorok.scienceontheweb.net/lulikazir.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451752/normal_600c467a17367.pdfIn PDF document text
- http://gelupulofevabek.medianewsonline.com/pedufovaxekitom.pdfIn PDF document text
- http://zuxekagapefe.mygamesonline.org/algebraic_expressions_test_grade_7.pdfIn PDF document text
- https://cdn.sqhk.co/bofogarabu/hfrJBgf/vozaregugufif.pdfIn PDF document text
- http://befotuke.mywebcommunity.org/sidapozazagaka.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tuxenipup/active_and_passive_voice_sentences_with_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1e6effa5-1275-4558-9e0a-eb9159223663/stress_management_lesson_plans_high_school.pdfIn PDF document text
- https://s3.amazonaws.com/marimejerebo/vuvefukenukof.pdfIn PDF document text
- https://s3.amazonaws.com/kewakuko/regugitazenesatedise.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d0750bf9-976e-4f1b-8ff8-bed96794d1a5/lobupuduti.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2aa8d0c9-ae9d-480b-9b81-29aa1edb4110/20215948828.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd00f5bc-64e2-4d62-b921-63b50fda5490/93009792864.pdfIn PDF document text
- https://s3.amazonaws.com/lupebesu/25901983913.pdfIn PDF document text
- http://sukokovevaz.atwebpages.com/xatamelijevazibapopuj.pdfIn PDF document text
- http://nisetekotixob.myartsonline.com/game_of_thrones_book_release_date_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ba3eaa7-aded-4a64-8b5c-157b1e8ed21d/denubem.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_off00022bc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22BC7 | 5376 bytes |
SHA-256: 5c4c556b92a764a59b7640bf59f20d4279c145d0741e89d9683921fa93c8c28d |
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font_01_sfnt_off00023df0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x23DF0 | 13028 bytes |
SHA-256: b4ac8f1af5261246848ea41aa44302e66cff85e7acc18f010c253d7dd3de412f |
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