MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. It contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated, but the presence of numerous external links and the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://ketchas.ru/uplcv?utm_term=wikipedia+android+phones PDF link annotation
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/oj0r8grt88k0l5s0v6bndus1l9/vanizumewofixe.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109170759452082.pdfIn PDF document text
- http://altera.ukrstroyka.com/content/xuploadimages/file/39865109818.pdfIn PDF document text
- https://beamstraffic.com/amb/userfiles/file/21889656.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/a8eab55270c621e28966d9cc81af19e3/dezajasonorovega.pdfIn PDF document text
- https://pleasanton.com/wysiwygfiles/file/79645852116.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/kubigakatanaru.pdfIn PDF document text
- http://apothepharma.com/upload/files/giraxejol.pdfIn PDF document text
- http://aygroupmuh.com/image/files/33070004362.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/b12ecead72428db92e2e75fc5c8b65ca/nofagura.pdfIn PDF document text
- http://s2ipower.com/survey/userfiles/files/6878111018.pdfIn PDF document text
- http://jiuxingchaoshi.com/uploads/file/131806376642.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/jejax.pdfIn PDF document text
- http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/98516713037.pdfIn PDF document text
- https://thegmsbihta.in/userfiles/file/32594107570.pdfIn PDF document text
- https://rdw-wolf.de/backend/ckfinder/userfiles/files/69765193966.pdfIn PDF document text
- http://hotelgiottotorino.com/userfiles/files/43066642183.pdfIn PDF document text
- https://crossfitbeeshark.ro/app/webroot/files/userfiles/files/58050166576.pdfIn PDF document text
- http://jiji.pgo.tw/pic/uploads/files/67531122024.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/bejewux.pdfIn PDF document text
- https://kopari.hu/files/file/64555557287.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_off0000e458.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE458 | 17620 bytes |
SHA-256: 88a836ab53f77e26b82c9ef3d83c667602ec8dc66f4271ec61468f1eba0ab98e |
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font_01_sfnt_off00011274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11274 | 10432 bytes |
SHA-256: 79953d50b3d686facefc75f3892f693a59b0d28e013c7779f7d506c4dc6b266b |
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font_02_sfnt_off00012a08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A08 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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