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. It contains a large number of external links, many pointing to disposable domains, suggesting it is part of a link farm designed to redirect users to malicious sites. The primary IOC is the embedded URL https://vilenefex.ru/123?utm_term=sugar+fermentation+by+yeast+lab+report, which is likely used for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://vilenefex.ru/123?utm_term=sugar+fermentation+by+yeast+lab+report PDF link annotation
- https://zubenori.weebly.com/uploads/1/3/5/3/135394140/5f661b6.pdfIn PDF document text
- https://watalixajine.weebly.com/uploads/1/3/4/6/134635748/vetutadesetuv.pdfIn PDF document text
- https://derefejoj.weebly.com/uploads/1/3/4/3/134358497/sopesede.pdfIn PDF document text
- https://widisujo.weebly.com/uploads/1/3/7/5/137512014/kogasezotun-zuxab-xibubiwitid.pdfIn PDF document text
- https://senuwisaf.weebly.com/uploads/1/3/4/0/134018119/579c2f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/7ce9aa84-f15d-4ae3-b3be-04ad8f2fdc7a/how_long_is_the_bed_of_a_2002_ford_ranger.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/36126fff-bfee-4705-96d3-f58fc73959fd/domufi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/33adf71a-e937-4005-82c7-1ddc001c2f50/mimadiluwikoveram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cbfd14d4-b3b2-4bb3-836a-b03a18265823/vodabevolasewepularol.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/44238672-cf1f-45be-ae44-aaf344eaeee8/nepevuti.pdfIn PDF document text
- http://wojipag.pbworks.com/w/file/fetch/144420024/rerelok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8270df17-5943-4310-a9cb-1c3e0c97f1c0/theseus_and_the_minotaur_sculpture_gay.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/671beb23-d4fb-4065-acca-2b67ccd7ef0a/zyxel_pk5001z_custom_firmware.pdfIn PDF document text
- http://poxanoralanu.pbworks.com/f/nexivatos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0849b8a4-e1c9-4035-a148-f57c690f1f7a/optical_fiber_communication_book_free_download.pdfIn PDF document text
- http://vugufosenene.pbworks.com/w/file/fetch/144574086/29407415636.pdfIn PDF document text
- http://noxiwako.pbworks.com/f/84417687498.pdfIn PDF document text
- http://didaneguk.pbworks.com/f/wipobogofutamuxelulunebip.pdfIn PDF document text
- http://mizunebapod.pbworks.com/f/35009798407.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/861767ef-dc4b-4c89-99a2-b06472e9ce5c/what_are_some_examples_of_technological_innovations.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a2cb981-a701-4468-8451-a54c1641df1e/wayne_dyer_youtube_evening_meditation.pdfIn PDF document text
- http://wudiwiligis.pbworks.com/f/2020_f_150_super_snake_cost.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_off0000eced.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECED | 5568 bytes |
SHA-256: 7a930b035241770f06dbb453e173be3d4340f44dd28f3af49efe4cd70e763fc4 |
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font_01_sfnt_off0000ffcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFCB | 11268 bytes |
SHA-256: 2b0b2f9a7554c7d71c81cce90a07b0fbbaff307b701e9310a0e86434f844f7aa |
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