MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to an external URL. The primary URL identified, https://druttle.ru/strik?utm_term=challenging+catastrophic+thinking+worksheet, is flagged as a redirector. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://druttle.ru/strik?utm_term=challenging+catastrophic+thinking+worksheet PDF link annotation
- https://cdn-cms.f-static.net/uploads/4370285/normal_60364bca54468.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369333/normal_60535342e222d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406170/normal_606b25809ec27.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391605/normal_603595f1b09c9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375203/normal_6005220830934.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422390/normal_60675fd1baf83.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502188/normal_5fd91546b351f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484820/normal_5fd711826a5b4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454438/normal_5fffef68d4e67.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476939/normal_5fdd6f219e149.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482636/normal_605441b34e2e3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482858/normal_604dc07a5b1cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379969/normal_6036b1990a797.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485801/normal_604dee31eb158.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375196/normal_6018dd99e5541.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/rebomedug/saxukibagafimosasunuwe.pdfIn PDF document text
- https://s3.amazonaws.com/mupukesunobaga/ejemplo_de_curriculum_vitae_para_trabajo.pdfIn PDF document text
- https://s3.amazonaws.com/vofadoloves/95124354965.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1dc95557-5f23-418a-b148-30a5b26e90f6/estructura_de_un_texto_descriptivo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bcc5e820-c1e7-4c2f-95c4-0144580d2f58/dexubidowezoxaf.pdfIn PDF document text
- https://s3.amazonaws.com/xufujofaleki/pmi_lessons_learned_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b4246e8-8db1-4285-b41b-35b6a32ab834/fovojefo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a83fd2f8-e4e9-4d9e-910e-502684934c51/easton_aluminum_arrow_size_chart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f24fd6f5-2bfc-482e-81e3-706e108486dc/is_the_maze_runner_book_appropriate_for_12_year_olds.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_off000104f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F6 | 5256 bytes |
SHA-256: 80894c9d3ef60b618c906fe7edc176c4fa7897a56f73627cbb516ab4416c3815 |
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font_01_sfnt_off000116e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116E1 | 11108 bytes |
SHA-256: 12f13269c149d9a287f7c52b2437fb2bca749306a5eb1e78438cfcc945811e6e |
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