MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to websites hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content or phish users. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the structure and URL analysis suggest a malicious document delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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 http://navigator-nsk.ru/userfiles/file/29328836205.pdf In PDF document text
- http://xn--2-140-swe8h.xn--p1ai/files/wetepajadozov.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609665b82012b---mawivifotef.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/35350fafb2ae3eff00094535cd57ec02/wupupuxinug.pdfIn PDF document text
- http://cochu.net/resimler/files/91692891961.pdfIn PDF document text
- http://salukool.ee/upload/userfiles/file/51294028030.pdfIn PDF document text
- https://vietspices.asia/uploads/files/gopesediwukotaxorilixutub.pdfIn PDF document text
- http://gerd-pollak.de/userfiles/file/13442747241.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/ea18894191d396f8e1b976a9994bc0ee/37299523811.pdfIn PDF document text
- http://sklepjola.pl/userfiles/file/52962842738.pdfIn PDF document text
- http://www.sloepverhuur-debiesbosch.nl/upload/files/jotijotowovama.pdfIn PDF document text
- https://newline-eg.com/userfiles/file/97275369740.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/297fa1d653992db531251667ba587c01/36013676559.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ed2d6918f---65503939428.pdfIn PDF document text
- http://fkhd.cz/data/img/vipes.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/hupjj118cq12udaktnt0eikhgg/pifotibugolabenamew.pdfIn PDF document text
- https://zweefvlieg.net/userfiles/file/6439502427.pdfIn PDF document text
- https://ruxthai-guesthouse-chiangmai.com/ckfinder/userfiles/files/37070318815.pdfIn PDF document text
- http://lumieretvie.com/userfiles/file/kipinijekafexisoneto.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/88229017714.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=encyclopedia+of+poisons+and+antidotes+pdf+downloadPDF link annotation
- https://tes-sys.com/uploads/ckfinder/files/20210807/16282694571166.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_off0000ba38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA38 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d24a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD24A | 18520 bytes |
SHA-256: 4bdc028efa9608ede1603fc856ebc1fcae7f26bb41f2345e10029a5f746947c6 |
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font_02_sfnt_off000102da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102DA | 10696 bytes |
SHA-256: e9f4507f4a1208d9c575b7fd11ca4feda04189e9fa55088438ee2699301d66de |
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