MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links pointing to other PDF files hosted on various domains, many of which appear to be disposable. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://lozipotod.ru/strik?utm_term=medical+term+book+pdf PDF link annotation
- https://lirisosu.weebly.com/uploads/1/3/1/3/131384099/5990181.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459036/normal_5fd8843870e53.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420438/normal_602d75d194de6.pdfIn PDF document text
- https://boxorefo.weebly.com/uploads/1/3/0/9/130969922/15b539337e83edf.pdfIn PDF document text
- https://jatufabafalili.weebly.com/uploads/1/3/1/6/131637938/xirivanep.pdfIn PDF document text
- http://cleaner-inn.club/3d_video_editor9yi4c.pdfIn PDF document text
- http://austritkfa.com/9115446550389f1s.pdfIn PDF document text
- https://sagupegijugix.weebly.com/uploads/1/3/4/4/134443219/5121c9d7f.pdfIn PDF document text
- https://kowezuvive.weebly.com/uploads/1/3/4/6/134603832/lavogotex-tulemiles.pdfIn PDF document text
- https://lalupapetawosi.weebly.com/uploads/1/3/2/8/132816164/7cceb7939ba.pdfIn PDF document text
- https://xapeposatu.weebly.com/uploads/1/3/1/4/131437079/3932636.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413842/normal_60038893bcf37.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369191/normal_603e26863f366.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374199/normal_5fe970a3da388.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403820/normal_601e843dbe67f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452861/normal_601b63c6ba260.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417123/normal_6054aa64d9cfa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412767/normal_6054780d7bb1c.pdfIn PDF document text
- https://sivipamekan.weebly.com/uploads/1/3/2/6/132682587/kupawimetobujan.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://7f3356c1-ec1f-498a-9d41-5b36c14d87b7.filesusr.com/ugd/98d33d_6cb574697ac341c48981a281081c8b0b.pdf?index=trueIn PDF document text
- https://964beff5-d24f-450a-94e2-fa7e9faef44a.filesusr.com/ugd/61158f_ec6e9f8777a647389f8f7ce21e10d1a2.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_off00011c45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C45 | 5332 bytes |
SHA-256: 969925d10c7886dec240eb99655c272e185fa9f5ca497ee9bc55579a75ed5aff |
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font_01_sfnt_off00012e5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E5B | 11100 bytes |
SHA-256: f8f966e26a008620f5653fc0e7a2b34436cf57245cc252c3d794a8287841c0a2 |
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