MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the presence of external URLs like 'https://maypoin.ru/123?utm_term=evanescent+waveguide+coupling' and 'http://belplitka.ru/1354600586y20y3.pdf' points towards a spearphishing attachment used to redirect users to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://maypoin.ru/123?utm_term=evanescent+waveguide+coupling PDF link annotation
- http://belplitka.ru/1354600586y20y3.pdfIn PDF document text
- http://instapresent.site/manaseruleganupanaruwab2ic6.pdfIn PDF document text
- http://good-production17.site/63399058779yhlqd.pdfIn PDF document text
- http://lavkavkusa.store/canon_in_d_tab_guitarr4vg6.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/sewamos/29881983212.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9663581f-ead7-4201-85b5-372344b06785/vokapafel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ecb5b94-ffc1-4e00-9d8e-1dc98dfacccd/vifavoneripewu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/131facfd-ee5a-46e1-b822-82a84f63e70e/bunisapagixezorefodod.pdfIn PDF document text
- https://4c69d07c-928c-405f-a1ab-6436392658c4.filesusr.com/ugd/4c264d_e87eb6fc9f97498f9d0fa05376de1f5e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/80496a74-fe85-40e5-858b-0978531dce8a/56923427647.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/915b7c2a-f1bb-4976-b80b-6f0881c4c8ae/regal_fly_tying_vise_reviews.pdfIn PDF document text
- https://s3.amazonaws.com/zodererezuzuxi/mejuwiluwelawi.pdfIn PDF document text
- https://75e6061f-eb7a-4ce8-b546-077bf96366c3.filesusr.com/ugd/2dfd19_9c034d15d199450683ba4456ca5c535a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6588468e-4b63-435c-9935-d33031cb07ea/54701055504.pdfIn PDF document text
- https://s3.amazonaws.com/povodijirig/75857465657.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c898bd0b-4947-4f0a-8b17-1ff5da967dfb/csikszentmihalyi_mihaly_1996._creativity_flow_and_the_psychology_of_discovery_and_invention.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bbb26742-4f7a-4a06-864c-bf18e74ba5c9/asm_handbook_volume_17_nondestructive_evaluation_of_materials.pdfIn PDF document text
- https://s3.amazonaws.com/dazuxujepov/127665968.pdfIn PDF document text
- https://s3.amazonaws.com/fifuto/paper_chromatography_of_food_dyes_lab_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb381966-08ee-4e84-811d-f3cbc2d61e73/why_does_my_chevy_equinox_keeps_overheating.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/02062aa4-0ff3-4cab-952d-82475de05f63/4189981370.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_off0000ea25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA25 | 5252 bytes |
SHA-256: c61afde29b1e3f74557624d7bb2ef374d97b9608d5d73ee458866e5caf6658ac |
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font_01_sfnt_off0000fc36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC36 | 13000 bytes |
SHA-256: 137e839a742ef5adc737943f83161fb7e76df35098df303d8aa7b45fd38285c7 |
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