MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, a common tactic for distributing malicious content. While no scripts were explicitly extracted, the presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with the ML_NYX_PDF_MALICIOUS and ClamAV detections, strongly indicates a phishing or malware distribution attempt. The document body is heavily obfuscated and appears to be non-readable content generated by wkhtmltopdf, further suggesting it's not intended for direct user interaction but rather as a vehicle for the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/ubtpkujp7n2j79uqre4etg1o5p/gofijokabuwozaxez.pdf In PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a58a61c9602---gadol.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/qfsarqgv3r5ubaflhg4llm341d/retafudurarowezom.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/zeniz.pdfIn PDF document text
- http://straub-online.ch/userfiles/files/46264494902.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/d2ihpttmeb3sthonkpm97qtjhq/paronikajered.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/90c0f742413a32ce1450ba5a712a5f08/5608258986.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/zuvitudutefaketisonis.pdfIn PDF document text
- http://neodermclinic.com/file_media/file_image/file/58364132472.pdfIn PDF document text
- http://17njl.com/userfiles/files/xetiwukagiko.pdfIn PDF document text
- http://whatdwellswithin.com/file/kubulodazox.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/e6de971dbd1e878b7369dd50794fa6eb/9275900925.pdfIn PDF document text
- http://mcutech.net/upload/2021/08/file/16278990181484177239.pdfIn PDF document text
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/snhku6t2j041cpl3ug4k7h7pr1/degudomivuxerinumotetiju.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/85637280530.pdfIn PDF document text
- http://ipceurope.eu/assets/file/21761503679.pdfIn PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/55ec1e02890309baf35b8b77f8bdc2ac/lopuwa.pdfIn PDF document text
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/lt70c5767a2q5aol9o7omkncl6/75998521507.pdfIn PDF document text
- http://bydnjl.com/userfiles/files/15108247580.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f31384eb9a---sanibixesajej.pdfIn PDF document text
- https://butagallery.com/userfiles/files/3790948861.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=hal+leonard+guitar+method+music+theory+pdfPDF 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_off0000bedb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEDB | 11272 bytes |
SHA-256: 980d3159b414767009ff6a7b9cb80aec011360b0dba791e3da240d519811c99e |
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font_01_sfnt_off0000d8e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f0f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F9 | 16600 bytes |
SHA-256: 2f8ae7f34aa9783628c8d853be58cea9a0650460e5e295b58006ce30a1799301 |
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