MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm for phishing or malware distribution. The presence of external URI heuristics further supports this, as it directs users to potentially harmful sites like https://catamma.ru/uplcv.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://catamma.ru/uplcv?utm_term=imperial+infantryman%27s+uplifting+primer+pdf PDF link annotation
- https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/447d940980d8bc7bf785b8422593e463/95569543075.pdfIn PDF document text
- http://ipublicity.cz/data/file/japipojarodifazonusulon.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16094ae6087d6e---nedasu.pdfIn PDF document text
- https://ducthai.vn/userfiles/file/milotalulirepew.pdfIn PDF document text
- https://yaslibakicisi.net/userfiles/file/61499249564.pdfIn PDF document text
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/3e60cc62920f107631d1afcaa88976d5/73371806802.pdfIn PDF document text
- http://stolizstekla.ru/userfiles/file/96092314597.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6482752a3f---97329568773.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9e2c0eddc---xaxelapiwiv.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1fc9265b44---6747873740.pdfIn PDF document text
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078799e937e5---47484348888.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/pavirawipiditim.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/f5b1bb231d6a132da88793884e7a65dd/84806556681.pdfIn PDF document text
- http://starfishdowney.com/uploads/files/12088717311.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3c597c938---30764661687.pdfIn PDF document text
- http://applecentervn.com/uploads/image/files/nokowelajinob.pdfIn PDF document text
- http://geometrarontani.it/userfiles/files/gatawevorotumosogew.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a26e7be1615---96628925672.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/busogaborivisarikuzitojir.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb4c8dc8ce---16619689985.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/sagufaxofiniporonumu.pdfIn PDF document text
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/7e9b6da2ae5c5c6f1d513f961feadbc7/jejejov.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/5da7ca5d783c9f58b6ca5d8a4f9d0479/58158211499.pdfIn PDF document text
- https://angelsstaff.com/uploads/file/14001030465.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_off0000de6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6D | 10920 bytes |
SHA-256: 64fd33f021d3456b52d57b986a18a79f3c866589a2be878e0960a86371f3bd20 |
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font_01_sfnt_off0000f77f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77F | 16652 bytes |
SHA-256: 9c7c8b14aa587a9345bb29d8377a8a3d92f3bb9b17a7cc3a73e3e3680b0817ab |
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font_02_sfnt_off00012274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12274 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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