MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, indicating it was likely generated programmatically to appear as a document about 'anti allergic drugs classification pdf' to lure users to malicious sites.
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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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://ponafet.ru/award?keyword=anti+allergic+drugs+classification+pdf PDF link annotation
- https://vaputonusodi.weebly.com/uploads/1/3/4/4/134493057/b8ed9a78.pdfIn PDF document text
- https://kasasifu.weebly.com/uploads/1/3/4/6/134697732/3eb1796.pdfIn PDF document text
- https://noguvipeves.weebly.com/uploads/1/3/4/7/134717425/rorizas.pdfIn PDF document text
- http://kavelizopepi.mywebcommunity.org/gusewifinuj.pdfIn PDF document text
- http://jofufunobek.sportsontheweb.net/wasosobigomexujafo.pdfIn PDF document text
- http://domastmsk.space/powerpoint_themes_free_for_windows_10s5qq7.pdfIn PDF document text
- http://livemavuxedu.getenjoyment.net/maths_book_for_class_4.pdfIn PDF document text
- http://znakomstva69.space/english_vocabulary_games_for_grade_1e3rl7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2c9641c8-5874-4869-9b94-f1378e60aa6b.filesusr.com/ugd/efc1f6_025b05003003418b8b0dffcbe6763507.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sedowedi/fofeviba.pdfIn PDF document text
- https://a8a57b57-a5e9-4b5c-b824-02731ce3a1bd.filesusr.com/ugd/cfa667_34374cbb17234d6999d5140add8366e0.pdf?index=trueIn PDF document text
- https://a44a9d9e-3ce9-422e-9b5d-83ef2d4925cb.filesusr.com/ugd/3234e9_ec5e5e2eaaaf461eb4bfe1e7bce12509.pdf?index=trueIn PDF document text
- https://ce099f17-eb12-430b-a452-8d789b3ee5a8.filesusr.com/ugd/aef5b7_1c8fe50509f4483cb2911c74ff410b5b.pdf?index=trueIn PDF document text
- https://8dac4d01-2cd1-45d2-8b5f-6005f802adc9.filesusr.com/ugd/1f96ce_f71fbe960d5e4be38809262fe2bef7c5.pdf?index=trueIn PDF document text
- https://1ec9b6e7-17eb-4e1e-a994-ba5ce4cbdb7c.filesusr.com/ugd/d4a9d6_4e0baa59ee13457ab1657ca904134a27.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kumasala/72489311676.pdfIn PDF document text
- https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_81a84b0238f74f45b83cf8d49e3c58e7.pdf?index=trueIn PDF document text
- https://584abdf6-e408-48d3-a53c-4313a8f82471.filesusr.com/ugd/18ee90_81295d9428ab4affa0c6aa84f25d8473.pdf?index=trueIn PDF document text
- https://7e8267f5-6380-480e-ad72-df526eaefc07.filesusr.com/ugd/cbe325_6289b0a528ca46158b892cc37b82634b.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_off00010c48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C48 | 5312 bytes |
SHA-256: 1ebcb1e79230315b181f0e49211dd88dcdbac17df50c9c3a93db8bef33ba0a0b |
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font_01_sfnt_off00011e6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E6A | 12292 bytes |
SHA-256: 7c096a74dd494db06b181cf85cf8ccfc9e561ac41bec2271c9253a112b087209 |
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