MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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 uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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.truckersplantparts.co.uk/ckfinder/userfiles/files/93039961606.pdf In PDF document text
- http://valdhans.cz/userfiles/file/tebazofudefebotokofowu.pdfIn PDF document text
- https://shiphangnhanh.net/uploads/image/files/paxepakamovo.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbb0ec55e2b.pdfIn PDF document text
- http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/78773394658.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160abff9552976---96880408690.pdfIn PDF document text
- http://rajhansnursery.com/userfiles/file/topowebitowu.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/37768256514.pdfIn PDF document text
- https://juegosinflablesarizona.com/files/ragepavepubalapulevaxav.pdfIn PDF document text
- http://velisend.ru/photos/file/mulekigomed.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b88ed033653---76503258568.pdfIn PDF document text
- http://guoyangmoju.com/userfiles/files/pixevujolekaga.pdfIn PDF document text
- http://suacuacuonthanhhoa.com/upload/files/37355646179.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16073eeb04d376---21496246469.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/4509188088.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/df20681bf25a7eed71d613038f4e6691/niwajebesos.pdfIn PDF document text
- http://africa-emergence2019.com/userfiles/file/sukekamuvanodo.pdfIn PDF document text
- http://chineseclothingonline.net/File/fazavexanelixox.pdfIn PDF document text
- http://www.mostex.sk/files/articles/file/22696125080.pdfIn PDF document text
- http://claudiamelchior.it/images/file/dudivati.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=free+online+owners+manuals+for+carsPDF 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_off0000abd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABD1 | 13704 bytes |
SHA-256: 7f831615266e55616e2fb909dedf0548a64f17241d108f73a06bba13e3495f9b |
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font_01_sfnt_off0000cd8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD8B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e5a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5A2 | 10564 bytes |
SHA-256: a45361ad09f5c1e8afb8d0a5c3ca04eae19673613b530e00ef40b2ea6e7a0181 |
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