MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains a large number of embedded links, many of which point to disposable hosting or redirector infrastructure, including a link to `https://yafferge.ru/123?utm_term=carl+jung+red+book+free+pdf`. The document body is heavily obfuscated and appears to be a lure for search engine optimization, likely intended to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/123?utm_term=carl+jung+red+book+free+pdf In PDF document text
- https://romudakon.weebly.com/uploads/1/3/5/3/135318284/1289487.pdfIn PDF document text
- https://rigasalimuf.weebly.com/uploads/1/3/4/7/134703392/3432674.pdfIn PDF document text
- https://sugabora.weebly.com/uploads/1/3/4/3/134369176/luxulemetuz.pdfIn PDF document text
- https://gafekiwukuwemul.weebly.com/uploads/1/3/4/3/134313713/megowiboroxejupul.pdfIn PDF document text
- https://senuwisaf.weebly.com/uploads/1/3/4/0/134018119/19b6a.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/4cbbf412-829b-4181-aabd-334791130021/what_not_to_eat_on_keto_diet_menu.pdfIn PDF document text
- http://viluxese.pbworks.com/w/file/fetch/144423540/recommendation_letter_for_kindergarten_students_examples.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/28bd04ea-267b-4155-bb34-0b7f82f4792a/vw_service_plan.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1257d9a2-91b8-4e10-bf93-34654817c4f9/motorola_symbol_mc9190_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/177b70bc-d08e-41d6-9b7d-703bf7bbf759/76764241920.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60c5511e-c895-4ea7-9ca0-411cfb6e2134/cinderella_story_book_in_hindi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e08457c-2fed-4a0c-b277-8871efb21f9d/interesting_facts_about_langston_hughes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/083d8129-5ae1-491f-8d55-209dd04554dc/market_wizards_by_jack_schwager_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26be978a-df02-4eb5-854e-bacc9d948dcb/best_free_subwoofer_box_design_software.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6953e2fa-75e9-4483-a734-1f7b3512f8b0/what_are_the_two_visual_strategies_in_organizing_information.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f7e834e6-1596-4b4f-8c9f-df0ef859bce2/roald_dahl_boy_-_full_audiobook_with_text_audiobook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2c381f00-e9ca-4a35-a6b5-67ceb06b15f2/what_is_the_plot_of_a_rose_for_emily.pdfIn PDF document text
- http://lekuzax.pbworks.com/w/file/fetch/144419193/new_products_management_crawford_di_benedetto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7eb514f6-3e08-490d-ab83-bb1303dfe8f8/bangladeshi_baul_gaan_jewellery_kare_dekhabo_moner_dukkho.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4506629a-90d0-4f07-9ff5-eefa8cb7e0ca/les_contes_bleus_du_chat_perch_questionnaire.pdfIn PDF document text
- http://xoxafepapesu.pbworks.com/w/file/fetch/144412134/99793606974.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/626288fa-7d6b-488c-ae12-03597dcbddeb/jemawuwisi.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010037.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10037 | 5216 bytes |
SHA-256: 22c62cd967bee30379288da63d8c12ae0bb9fe89f0466db08fe34b0b39ae8ac7 |
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font_01_sfnt_off00011208.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11208 | 10980 bytes |
SHA-256: d66e79e8d5d398f22e41fb083b0e930c3cbd9e1ac446669a4a9a723a6424558c |
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font_02_sfnt_off0001371e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1371E | 16060 bytes |
SHA-256: 503f5200e83b189a546b6c6e1d808633a9135186956fe76ff9bd78de3d91e3c6 |
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