MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of external URI heuristics and link farm indicators strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://ketchas.ru/uplcv?utm_term=kirchhoff%27s+rules+worksheet PDF link annotation
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/02e7c5bd95e777b67b63bf5dc49bdb3f/tamudazimu.pdfIn PDF document text
- http://www.biotanika.pl/upload/file/pagewinizuvemolasisejud.pdfIn PDF document text
- http://kamerton.nl/clientfiles/jatixukoketudufulonak.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/qi646i22u4jh08p49fk8aahe8t/52168787487.pdfIn PDF document text
- https://zlatartopalovic.rs//files/44796515474.pdfIn PDF document text
- https://fotobolfestmeny.hu/mvc/userfiles/file/32124512652.pdfIn PDF document text
- http://gldbirdgel.com/user_img/files/jixuxixolokapigu.pdfIn PDF document text
- http://luxcottage.ru/stroykamen/userfiles/file/85322942861.pdfIn PDF document text
- http://baiduvpn.com/upload/files/wedejoluwaneranewenowar.pdfIn PDF document text
- http://sonsuadogo.org/Images_upload/files/mupadirobuwi.pdfIn PDF document text
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb851cdc7e6---fasiluvuva.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16074cfb48857d---87073133025.pdfIn PDF document text
- http://broadgatecapital.com/userfiles/file/74390158542.pdfIn PDF document text
- http://ankamet.com/userfiles/file/89638813672.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d936dcc2ef6---7378903426.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bae16fd6f6e---98941897888.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160b35a0101196---96433578658.pdfIn PDF document text
- https://network-italia.it/file/84542169296.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/56a37303715ec98312a923260ca426e8/70849200766.pdfIn PDF document text
- https://lapakunited.com/contents//files/8966836171.pdfIn PDF document text
- https://steklo-shik.ru/userfiles/file/67071645194.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_off0000deac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEAC | 10468 bytes |
SHA-256: 55f510a94687bc03279413ee70b933cb2f488e8189ade1ac5ed75c4bcab62746 |
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font_01_sfnt_off0000f6b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B5 | 17684 bytes |
SHA-256: 53dda6674b7daa7c3e40f251ad545096737735994715ef98d6c27af5445005d0 |
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font_02_sfnt_off00012444.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12444 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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