MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing attempt. ClamAV detected this file as Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0, and ML classification strongly suggests maliciousness. The primary malicious URL identified is https://vilenefex.ru/strik.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://vilenefex.ru/strik?utm_term=holmes+air+purifier+true+hepa+%252B+aer1+filtration PDF link annotation
- https://static.s123-cdn-static.com/uploads/4477638/normal_5ffe91adf15dd.pdfIn PDF document text
- https://cdn.sqhk.co/riroxale/jeifhd7/fefelobiwojozugigepa.pdfIn PDF document text
- https://cdn.sqhk.co/wujugojuse/fiaoieu/15611751560.pdfIn PDF document text
- https://cdn.sqhk.co/rekubapapup/ggsEjbz/roads_of_rome_new_generation_2_level_25.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490263/normal_602d92f945e41.pdfIn PDF document text
- https://cdn.sqhk.co/bidekidarub/hdhbLhb/easy_recipe_for_german_chocolate_cake_frosting.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369629/normal_600c8d991b593.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://tiwatimab.atwebpages.com/52208714612.pdfIn PDF document text
- https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_cf7dfe5ab0494c6387bf613ac85cfcb9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6e7c8601-78fe-4e7f-9934-dc17a175bae3/renofutivunawokag.pdfIn PDF document text
- http://sajulugebimisu.myartsonline.com/40785022012.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53cd0103-994a-47b1-8aab-9f6647f89f33/jevowivafukuzofotaxaxagos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa81c23a-ecfd-44fa-8fad-b110e67d456b/21194428494.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/30cf1ce3-b590-49ad-9216-eb201e730257/aviation_weather_for_juneau_alaska.pdfIn PDF document text
- https://ce3a146a-d504-4efb-981c-4593fb85d965.filesusr.com/ugd/5b5da7_60b44472871d46d1948710d23c840d0a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c7647348-6557-4d11-a6d3-ed7cb91afbc3/79225249084.pdfIn PDF document text
- http://gogujigasad.onlinewebshop.net/words_their_way_online_activities.pdfIn PDF document text
- https://883cd1dc-02d0-4059-8fa2-99201f92b631.filesusr.com/ugd/6166c9_e1eccd6fa62840dd98b7f0f395766872.pdf?index=trueIn PDF document text
- https://8d537faf-e869-4ed9-a29f-988560fab1dc.filesusr.com/ugd/0cce51_cc19a005ea004f57a54c8455f0ead44a.pdf?index=trueIn PDF document text
- https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_64bdd09c865745f79c0cb727ba410390.pdf?index=trueIn PDF document text
- https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_b074b96cabc1435384b6f7aac4eb4a84.pdf?index=trueIn PDF document text
- https://e0f910ba-f4aa-4d6b-87f6-24d78cda99ab.filesusr.com/ugd/cc15ef_d659d0096b014225a2dd8a96d8ff040e.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_off0000ef25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF25 | 5152 bytes |
SHA-256: 81bd3a803146a2619c89ebbbb591840479663211fcbebb88c27346b765d19f69 |
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font_01_sfnt_off0001007e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1007E | 10828 bytes |
SHA-256: a393037b2d9f4c33644b5515f089fe4e8ac67956c40208d0569d6949f551e204 |
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