MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with at least one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'economics books for beginners pdf'. The presence of multiple links on disposable hosting and the ML classifier's high confidence score indicate a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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 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/strik?utm_term=economics+books+for+beginners+pdf In PDF document text
- http://vulenawaxoki.iblogger.org/bedtime_stories_for_adults_to_fall_asleep.pdfIn PDF document text
- http://lazadoso.iblogger.org/wuzobajemumujib.pdfIn PDF document text
- http://desofudexe.22web.org/bimal_kar_books.pdfIn PDF document text
- http://kixetojonomezad.22web.org/jamotakelibigu.pdfIn PDF document text
- http://mejumafegebameg.mygamesonline.org/kikekerekofejodasipurifeb.pdfIn PDF document text
- http://niwobupiku.iblogger.org/eeo-_1_reporting_2020.pdfIn PDF document text
- http://neludetewul.22web.org/58362554738.pdfIn PDF document text
- http://lonemap.medianewsonline.com/76193345103.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wibekemuxeni.epizy.com/linedotadewalapopu.pdfIn PDF document text
- https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_93623124594e4c149d85c078f82e84bb.pdf?index=trueIn PDF document text
- https://2386e270-bd20-42c1-b3e5-1ba7eaa1d68d.filesusr.com/ugd/b4f0c6_9337ecddfa774290b8ca498915cd3a43.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/42360637-7455-46ae-b025-b6b71698144b/gewuxirodiziwifinisujo.pdfIn PDF document text
- http://rofuvawitarul.atwebpages.com/train_ticket_cancellation_charges_2020.pdfIn PDF document text
- https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_8c300e8ae7ce4a4fb5bde208b6aaa2c1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a7a420ff-da64-4721-8540-52e52f8f9cb9/ti_84_plus_c_silver_edition_charger_target.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d8dd826f-aea5-4835-abcb-27fb2b30e638/microbiology_notes_for_bsc_part_1.pdfIn PDF document text
- https://16dc6c2a-32e3-4a69-9eea-5b59d93654f8.filesusr.com/ugd/176c29_e3382ee17b5c418e95587c3003e24c2f.pdf?index=trueIn PDF document text
- http://zimipasazodid.rf.gd/nusax.pdfIn PDF document text
- https://75edee45-cd08-43cb-a752-0c33e5c2343f.filesusr.com/ugd/a7c173_9b0a997d52444649bbfa3528e516103f.pdf?index=trueIn PDF document text
- https://6776ac3f-883f-499f-bc52-38dff818ec46.filesusr.com/ugd/969751_89398b9078104f5eb0fedc8701a869bd.pdf?index=trueIn PDF document text
- https://c3f0ce02-b953-40d9-b94a-e38a054f9a35.filesusr.com/ugd/7afb62_7a85cf1ecb124e358ff5ca0e6f65b0de.pdf?index=trueIn PDF document text
- http://fumibilulad.atwebpages.com/jacobson_cephalometry.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be2a1bff-a500-443c-8887-24f0f7e1f441/sujim.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_off0000e9e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E0 | 5396 bytes |
SHA-256: 352cd974073ff9754783be086870b7d32a97253051cb560c1e016636bae2faa2 |
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font_01_sfnt_off0000fc2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC2D | 10928 bytes |
SHA-256: 3d5222b7ca31039764f28d3dc01a39e4997374aa982c474fa0dad3fc0189e8a9 |
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