MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as a malicious screenshot lure, designed to trick users into clicking embedded links. These links lead to other PDFs hosted on compromised websites, suggesting a multi-stage phishing or malware distribution scheme. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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 69 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://infrive.ru/uplcv?utm_term=how+to+print+a+pdf+document+in+windows+10 PDF link annotation
- http://autoescuelatosal.com/galeria/files/29710402237.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d17ea79d18---vogijadaxofitagapa.pdfIn PDF document text
- https://nezrenweb.com/calisma2/files/uploads/xabowusodem.pdfIn PDF document text
- http://obkladlazby.cz/userfiles/file/buvewiwejajepob.pdfIn PDF document text
- https://tjpapigroup3.com/contents/files/66866073534.pdfIn PDF document text
- https://kompaspt1.com/contents/files/lizanakovibakut.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16152caaded4cd---38945346931.pdfIn PDF document text
- http://araratmebel.ru/img/file/64851048312.pdfIn PDF document text
- http://canadapremiumlubes.com/survey/userfiles/files/87109520953.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/161403c29bf7e0---vefomip.pdfIn PDF document text
- http://qqwandai.com/uploadfile/file/rotukimokaxivuzu.pdfIn PDF document text
- https://zhansq.cn/upload/file/18920470593.pdfIn PDF document text
- http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/fagizemiwojojud.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/68070166024.pdfIn PDF document text
- https://mobilieroccasion.fr/uploads/file/dozalodivuzigomuxiw.pdfIn PDF document text
- http://deleersnijder-bocaege.be/images/file/sewekoreloxedig.pdfIn PDF document text
- http://klawiatury-foliowe.pl/_data/file/29632340864.pdfIn PDF document text
- http://mtsskzy.com/userfiles/file/15470311534.pdfIn PDF document text
- https://laplacedesstores.com/upload/file/80851055093.pdfIn PDF document text
- http://brbud.pl/userfiles/file/rusubuwul.pdfIn PDF document text
- http://daiichilogistics.com/uploads/news_file/96755816503.pdfIn PDF document text
- http://ybshajiang.com/userfiles/file/2021-09-15/210915134320919891kv9pf2l4esah.pdfIn PDF document text
- http://htbestcomputer.com/media/ftp/file/49376896875.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_off0000b133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB133 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c94a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC94A | 11088 bytes |
SHA-256: 0a9e0291a4d3c8ab9b65577a72349da2c6a66b90c80a2f989e45e90af9533223 |
|||
font_02_sfnt_off0000e335.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE335 | 14292 bytes |
SHA-256: 2ee280cf76251afa4f6b4bca5c87888b9647b8ea96b5bacf4c65ffbe0e48731e |
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