MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many of which are hosted on disposable domains, suggesting a link farm or phishing operation. One of the embedded URLs, 'https://nipisod.ru/strik?utm_term=how+do+i+set+up+voicemail+on+my+nec+phone', appears to be a lure for technical support information, likely leading to a phishing page or further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://nipisod.ru/strik?utm_term=how+do+i+set+up+voicemail+on+my+nec+phone PDF link annotation
- https://static.s123-cdn-static.com/uploads/4405654/normal_5ff57f0260f8d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380219/normal_601d854eebbb9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427287/normal_604ca267074b7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485823/normal_60162722b5075.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460460/normal_5fd1c951a9196.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370269/normal_6044a65dca2ad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4487626/normal_604d77683cf61.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388178/normal_5fec84f06bb9c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://e5eb5b25-b33c-43e3-82d5-57ab1bf863d8.filesusr.com/ugd/b0c717_6ced085a9ef2475689590ba31215f591.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/waxegatulo/logic_and_contemporary_rhetoric.pdfIn PDF document text
- https://s3.amazonaws.com/sobaketemu/jifanefemobivadibixevadut.pdfIn PDF document text
- https://s3.amazonaws.com/lovomijelun/breathe_lauv_song.pdfIn PDF document text
- https://26aaa629-0581-4e25-ae32-a194504e59ab.filesusr.com/ugd/2d4e87_fd2855be514548ba9ed742c4e568016d.pdf?index=trueIn PDF document text
- https://ad177677-9664-42cd-9bf2-17a10eef6e1d.filesusr.com/ugd/f8915e_6d751851d3f1433e84ba5dae8ce6ed26.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jolunenafobuw/52570576439.pdfIn PDF document text
- https://c1cb471f-fc5c-4ef2-b3e1-4d0d0d09d135.filesusr.com/ugd/cc5b41_66ea27581e7d4747bf1c947647b4cc84.pdf?index=trueIn PDF document text
- https://4192d618-ecd7-4808-8485-efd4d6773ded.filesusr.com/ugd/17a5db_c6c6653633b04afe9709863720808ba3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gewisetug/wetin.pdfIn PDF document text
- https://108bb973-5399-4bf7-a70e-a18780752cac.filesusr.com/ugd/760a88_e935555684d84a5ba5c3bb09f0d7541c.pdf?index=trueIn PDF document text
- https://275320ff-96dd-455a-9699-a0fdc58b27a5.filesusr.com/ugd/943725_cc31db7e161344cbbdc6fa682df330ab.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_off0001131e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1131E | 5432 bytes |
SHA-256: 11f2f9a6233acaa009247525abecf43c198413bfad3be0cb3375b56ece005855 |
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font_01_sfnt_off0001258f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1258F | 12084 bytes |
SHA-256: 7a91233dec8a95f2dc44cf1e95bfbb770d53178bbd81e5049677947340bc55f8 |
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