MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The file's structure and URL patterns are consistent with a link farm designed to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://pistant.ru/uplcv?utm_term=how+to+stop+your+sneakers+from+squeaking PDF link annotation
- http://www.yoko-ono.be/images/userfiles/file/54055719999.pdfIn PDF document text
- http://chinasoftcore.com/userfiles/file///kexubofatutuzibebiwugi.pdfIn PDF document text
- http://superplasticizer.cn/d/files/68273492272.pdfIn PDF document text
- https://groupunsur2.com/contents/files/63894620964.pdfIn PDF document text
- https://avphunter.ro/ckfinder/userfiles/files/81584953265.pdfIn PDF document text
- https://masini-de-ambalat.ro/images/userfiles/99424679373.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/5300b6d8759d97d832259d7b18302b5f/53678276157.pdfIn PDF document text
- https://ntct.dz/ckfinder/userfiles/files/98761309546.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/ac67faaf2fe55c99b0bb310d69cf01f5/rawisovekidepama.pdfIn PDF document text
- http://mistralizmiryonetim.com/uploads/file/59346200600.pdfIn PDF document text
- http://bafiti.com/sklep/userfiles/file/tavabe.pdfIn PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/bukepemom.pdfIn PDF document text
- http://cupta.org/userfiles/files/20210627015256.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160be674e200bd---74781411437.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a066a22845e---soxivofovave.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/nekomatikenivotad.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a2b9452ea---48359344400.pdfIn PDF document text
- https://monyetmesum.com/contents//files/35374983887.pdfIn PDF document text
- http://szrealty.net/uploadpic/2021-5/file/2021051311494773499.pdfIn PDF document text
- http://norrlandet.se/userfiles/file/68422774693.pdfIn PDF document text
- http://dh-life.com/ckfinder/userfiles/files/zajural.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b538.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB538 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD4F | 11184 bytes |
SHA-256: a8c3d9fade0e0d70cb5e85379baf598d79ace7e21fc20d6e7b46c430d675b677 |
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font_02_sfnt_off0000e739.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE739 | 15252 bytes |
SHA-256: 01d0cdb14a102beee2e1c4e381221752c7fd9eeb7f5eeeb18e1e091782cdd483 |
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