MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a link farm of SEO-optimized PDFs, with one primary redirector URL pointing to 'https://ponafet.ru/123?utm_term=based+zeus+texting+course'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct users to open a password-protected archive, a common tactic to bypass gateway security. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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/123?utm_term=based+zeus+texting+course PDF link annotation
- https://wazelekur.weebly.com/uploads/1/3/4/3/134322050/winejobiroru.pdfIn PDF document text
- https://cdn.sqhk.co/zijigemeworu/Ktjdmid/3d_death_race_car_stunt_racing_games.pdfIn PDF document text
- https://buvapubadoloj.weebly.com/uploads/1/3/4/2/134265521/cc692.pdfIn PDF document text
- https://cdn.sqhk.co/pebekaja/gjhidgi/goat_simulator_xbox_one_trophy_guide.pdfIn PDF document text
- https://cdn.sqhk.co/vadavenaw/jdijsOq/kunumanoseza.pdfIn PDF document text
- https://cdn.sqhk.co/puxolika/ZzUjiPj/vasitexesebijaru.pdfIn PDF document text
- https://cdn.sqhk.co/tapowifilez/QjbF8E8/88414320268.pdfIn PDF document text
- https://gufurokis.weebly.com/uploads/1/3/1/4/131453316/fijavimowapofi.pdfIn PDF document text
- https://fikanofuzak.weebly.com/uploads/1/3/1/4/131438747/c945e6a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_3be3abe3d923449da14c5914123e8338.pdf?index=trueIn PDF document text
- https://ebd157e6-94c3-4ff5-b3ab-516f87acbde6.filesusr.com/ugd/e87473_ff1cbcd36a8845b1bba93a1ec8274224.pdf?index=trueIn PDF document text
- https://7aff118d-26f6-4d76-9bc9-1838009e7274.filesusr.com/ugd/f80014_0a018ae6e0f14f61a13bf3bda1a0a012.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jumedemimo/coshh_register_template_hse.pdfIn PDF document text
- https://s3.amazonaws.com/dosipive/finite_element_analysis_jobs_in_germany.pdfIn PDF document text
- https://s3.amazonaws.com/panokojol/17118957217.pdfIn PDF document text
- https://s3.amazonaws.com/wibedubosateg/how_to_reset_a_hoover_windtunnel_vacuum.pdfIn PDF document text
- https://s3.amazonaws.com/fedufiporara/kijonalafezoxeguzo.pdfIn PDF document text
- https://s3.amazonaws.com/gonasidupij/clasificacion_de_empresa_segun_su_forma_juridica.pdfIn PDF document text
- https://s3.amazonaws.com/dugibabafod/marketing_mix_free.pdfIn PDF document text
- https://e5058785-d3d1-442e-b0ad-d0045053dde7.filesusr.com/ugd/17c622_0d5a3bb97cbe48129f851d20d70d6c90.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_off00011358.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11358 | 5244 bytes |
SHA-256: 8da2ea8c7e7fdb2b0245291d033f8cb68e67986b48d72cc998d0c10019ba7e30 |
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font_01_sfnt_off0001254b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1254B | 11472 bytes |
SHA-256: 214e0bc3d647f6e467317573bde6fa8866183c25eed98c6ef43b830e687ad2e3 |
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