MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://baarspo.ru/123?utm_term=gastric+arteriovenous+malformation+icd+10 PDF link annotation
- http://bavomobes.22web.org/61578403828.pdfIn PDF document text
- http://jetavimazi.22web.org/human_development_report_2015_theme.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/18d7883e-1728-418f-86c3-5a9e9da0f478/wumaxiwetetimugazubidi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/78899896-7280-42d1-807b-6d977357814a/vermont_castings_intrepid_2_weight.pdfIn PDF document text
- https://s3.amazonaws.com/kakekojezutok/nefozitasexonuwutopelana.pdfIn PDF document text
- https://35b1a599-9f45-4897-82ce-59a931fc5495.filesusr.com/ugd/daca0d_1b8bbd08ad1f4714aecc9f09e0e65bb7.pdf?index=trueIn PDF document text
- http://wafowudu.epizy.com/gedoweposojofisuxiz.pdfIn PDF document text
- https://80b1f93a-fe74-4439-a81d-34814fa7a505.filesusr.com/ugd/e56fe2_a5ddb2e9ad50421cbc963f1ea8d280c3.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ebfae3c7-a653-47d0-b6a7-37d94b23ca86/how_to_pair_my_bluetooth_headphones_to_my_samsung_tv.pdfIn PDF document text
- https://s3.amazonaws.com/sajezife/c_e_r_full_form.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18e39664-d788-439d-8bc8-5e91ef75377d/37222006066.pdfIn PDF document text
- https://6f847715-c85a-45d9-ae5c-7c68cc800588.filesusr.com/ugd/6e100b_3ce139b1815b4a7f9cef2eb34a1ba120.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9f822248-f637-4945-b7eb-61b1ea98b982/94904996587.pdfIn PDF document text
- https://34e223d5-b18a-4f89-96b3-7c58aa965d90.filesusr.com/ugd/440e29_a20a9cb8f9fe46bfaab239be7c4c5d1f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/46bd5ec2-c7e8-490e-8604-cb6d38ccde67/modern_architecture_since_1900_by_william_curtis_third_edition.pdfIn PDF document text
- https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_e44ae55dec544d518bdc1da2f714ffcb.pdf?index=trueIn PDF document text
- https://167c8e7b-8160-49a2-a88e-f26749d647c8.filesusr.com/ugd/1ad47d_ea3ba57c351d4d3fbc296db3eec49739.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/muxegeza/gcse_maths_past_papers_model_answers.pdfIn PDF document text
- https://ab25a8b3-4d80-4d4b-93a1-c1347014fa7c.filesusr.com/ugd/8d0191_aa278718649b4b7896816924b39134d6.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_off0000f487.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF487 | 5452 bytes |
SHA-256: a016fd56eaf57728ab65f33b8a093439c13f7a8c793fee70d02a04dca1d4daab |
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font_01_sfnt_off0001070b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1070B | 11764 bytes |
SHA-256: 5a8b80939c7c600a4ac4ba598780cbd431db33d46ab6944f19e6d77e7317d775 |
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