MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a lure to external malicious sites, likely for credential harvesting or second-stage payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://infrive.ru/uplcv?utm_term=thank+u+mail+for+job+offer PDF link annotation
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/2300b29e9b44a6f5b3d7f41b0eeca6c0/70008464361.pdfIn PDF document text
- https://aulacvn.com/upload/fck/file/donusatifowo.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f26b518843---59969250949.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609582e6425f9---zesitidarofuxifepotik.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/6f86257ae4c410600b7ebfe40057c156/menazigomofeno.pdfIn PDF document text
- http://gyobel.itpublic/file/jasoxavusajume.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/3551b54c4070d70fa89039aecc65010d/81987738851.pdfIn PDF document text
- http://sergey-yushkov.com/pict/file/polologunosuluwatopogudi.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d6a75cd66ff---95888882402.pdfIn PDF document text
- http://dansensvenner.dk/imagesfile///6318545360.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/44fa43f924c7d17593e26800ef5de440/mojidoxela.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/tokepelira.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/dc3cce1cdd1372df57513c7397ef332f/nubewagenibupu.pdfIn PDF document text
- https://ltssinternational.com/res/wysiwyg/file/15582993534.pdfIn PDF document text
- http://srsheicha.com/uploadfile/file/raketawalizogilijipumebuw.pdfIn PDF document text
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092bdf6cef43---minoro.pdfIn PDF document text
- http://www.kilincsweb.hu/fileok/file/kerosokawomo.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_off0000e7e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7E9 | 10636 bytes |
SHA-256: 9e27024403abb3103c64510c0f19741078e45547f70a18f8fbb64a827f4a0129 |
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font_01_sfnt_off0000ffe6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE6 | 16812 bytes |
SHA-256: 0739fad619e2ae6223780802deed6f0cfd04c342b9979a9465ee7d358c4b16d1 |
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font_02_sfnt_off00012bb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BB0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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