MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/8c4ef53ed82408aecaabaf646253adc5/pazef.pdf In PDF document text
- http://antifftech.com/uploadfile/file/%5C/2021053114435290.pdfIn PDF document text
- http://odessahighschool1970.com/clients/7/70/70263b1be1b93b62200e198143f59f20/File/lemawa.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ccf05c5eb83---fevaludawizixalutodirof.pdfIn PDF document text
- http://sungsam.net/userData/board/file/jozukufotuvonejo.pdfIn PDF document text
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/4a4268b768682860ab47abcdd02abe55/34094021934.pdfIn PDF document text
- http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffa4009922---nojipuka.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/oaq1cg0289t2vq6j28bft8d8l4/83434037216.pdfIn PDF document text
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160923a82dd69f---piluwinup.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/9ee3574e9501ae52b9c28177ba12d52c/jijufuka.pdfIn PDF document text
- http://on-video.com/movies/movie_data/file/33298323447.pdfIn PDF document text
- https://gagiongvitgiong.com/ckfinder/userfiles/files/40387906986.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/fokev.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078feace5707---sikaropamojusujumelum.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/2jco3k964klk0erkuuq2aargd6/19102978013.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160832ddfdc177---zenopavi.pdfIn PDF document text
- http://allnatureint.com/userfiles/file/24831751522.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/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=subject+line+for+declining+job+offerPDF 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_off0000e10a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE10A | 5120 bytes |
SHA-256: 7036d6d5d41e19749297756e5247cfe7b4cfa267c23a5149e62be8afd8d577fc |
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font_01_sfnt_off0000f28e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF28E | 10348 bytes |
SHA-256: 0835d3af121abc1fe79bb41bc1866f2d67aebfcea695645b4be97cc4445ca790 |
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