MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed for SEO manipulation or to distribute further malware. No scripts were extracted, and the document body was unreadable binary data, but the heuristic firings strongly indicate a malicious link distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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 http://vladjurnalist.ru/archive/file/99433015109.pdf In PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/74dbbd2c4f70fb7712caee195965bbb7/nakiwixadipa.pdfIn PDF document text
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f9865a9245---radutuxuweb.pdfIn PDF document text
- http://ylpcl.com/ckfinder/userfiles/files/1316954637.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5985ce858---33341650910.pdfIn PDF document text
- http://graficaeformazione.it/userfiles/file/xuximotolabamizukiw.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160e2a43317709---22902422006.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c221247a718---6156679321.pdfIn PDF document text
- http://stananddiane.com/clients/6/67/672a2699e369d648dd23e03de9deda78/File/9075175762.pdfIn PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-5-16/20210516032722341319.pdfIn PDF document text
- https://ctapigroup3.com/contents//files/tixidabij.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c69991ba64b---vetetudewoxadopepo.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/mepegususoxozivebaxet.pdfIn PDF document text
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160e547bdea3cd---tagekikunamito.pdfIn PDF document text
- https://communeouchamps.fr/userfiles/file/2420246572.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/d0efcb29d50a119d3ca8a12efe0561de/fuvaj.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b296279195b---59742235273.pdfIn PDF document text
- http://smartcevent.com/clients/871459/File/4832864268.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/7ilos8gq8pp80jl100g7hj7724/guziw.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d416a3a020---48430830441.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16090d230159f6---62985305432.pdfIn PDF document text
- http://eugensa.lt/app/webroot/uploads/userfiles/files/bazanuzosabafatu.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad8953685a---15442318266.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c614e5ec83---daweziwi.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607730923bd48---27787336026.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=oxido+de+nitr%C3%B3geno+nomenclatura+iupacPDF link annotation
- 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_off0000d623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD623 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE3A | 11052 bytes |
SHA-256: ce23991f14f2de00ad3387d7fc8fba29a1174ddba472b45cf42eb357b4c8f899 |
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font_02_sfnt_off00010780.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10780 | 18740 bytes |
SHA-256: 95a8a22cb08ccef4d9674afa0ba3849ef7aceb26e90e1d39b2c451ea037f2172 |
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