MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to compromised WordPress upload directories, and employs a lure to trick users into downloading a password-protected archive. This suggests a multi-stage attack where the PDF serves as a deceptive entry point to deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/kcu60rpk5go2h3f5c1ds2tj64p/41102556131.pdf In PDF document text
- https://marjoyunlar.com/calisma2/files/uploads/suvefebemafiz.pdfIn PDF document text
- https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/479bf83bfbb76385c6b5989112ed1479/sudejapuzef.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/dunefagewazavir.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/1b2c7adbf36585a79087e010e01a58c8/banodafafeputoniwe.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/601e0f232dc61dc93e3d17887175ae07/34959595417.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3bf5877d95---31752042248.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/d8e9e053b5d2acdffcc8a9643253582a/pikatid.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608cbf3120dca---49884706769.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2e6852478---xeponijagit.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c09dc4356ec---lirixezija.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16091d89b79d34---boxeveb.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723131eb3a8---9671338947.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a08830cbd3a---78788664436.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=pdf+separator+macPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB4E | 5272 bytes |
SHA-256: 345f77760987cf643f72bf818502884e01f95bdc29e4c9fd5088ce826b80ba95 |
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font_01_sfnt_off0000ed2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED2C | 11800 bytes |
SHA-256: 384f54b0c0318a8e764a1a756946f02a8bfe678cbdff397f4014012b12cfad2a |
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