MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised websites or disposable domains, suggesting a link farm designed to lure users to malicious content. The presence of external URIs and compromised CMS upload links indicates a potential for redirecting users to phishing pages or malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://crysiq.ru/uplcv?utm_term=past+simple+exercises+affirmative+negative+and+interrogative+pdf PDF link annotation
- http://tribo.kz/userfiles/File/besiluwikara.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/nogidoreketufipuzitubaf.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/suxizijusikugas.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9afbe2dd7---2325958549.pdfIn PDF document text
- http://ghioroiu.ro/sites/default/files/file/wogegikodop.pdfIn PDF document text
- http://absigorta.com/E/file/67648774606.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/0k9uvrib81s970d34nv8fa3jhq/bimutagamudiverorizib.pdfIn PDF document text
- https://anpheatingandac.com/nbloom/fckuploads/file/manakikivigazobugago.pdfIn PDF document text
- http://wmhsclassof1977.com/clients/34196/File/70289529475.pdfIn PDF document text
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607433a73c684---33725259490.pdfIn PDF document text
- http://agenziaimmobiliarecannavo.eu/userfiles/files/ribusoxisepuvabetepoj.pdfIn PDF document text
- https://prestinireedcorp.com/userfiles/files/jobugabupekawuxoxul.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072230b68e90---xumogixasozututitebi.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160741c1fdd114---30507261034.pdfIn PDF document text
- http://aaykpn.com/uploads/editor/files/9484518144.pdfIn PDF document text
- http://sam-global.ch/files/file/vuvujugopogobik.pdfIn PDF document text
- http://come2menorca.com/images/file/rivazibixanaf.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ed30b9513---31387437921.pdfIn PDF document text
- https://nepalmicrofinancesummit.org/userfiles/files/xowif.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/88281842153.pdfIn PDF document text
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/7ec498142aaa0e172b6addc1c7bed920/92186073634.pdfIn PDF document text
- http://4x4autok.hu/userfiles/files/25552455610.pdfIn PDF document text
- https://travelstore.tn/userfiles/file/9818677912.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/kowetedepemulijiludok.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_off00010cfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CFB | 11132 bytes |
SHA-256: 3b6ccea89afca5680a8f1aaff224878a6d538d596ae3c62f3202d68ec65fffde |
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font_01_sfnt_off000126cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126CB | 19020 bytes |
SHA-256: 56b784620528eaa0da0eb3e65aa94118a9fa9d3b5a1fdfb81a15283da2426f72 |
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font_02_sfnt_off000155d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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