MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs and a heuristic firing for 'Password-protected archive handoff', indicating it's designed to trick users into downloading password-protected files. The document body is heavily obfuscated, but the presence of links to external sites and the overall structure suggest a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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://smidgel.ru/uplcv?utm_term=wwe+2k18+ppsspp+game+download PDF link annotation
- http://www.galiantsolutions.com/emailimages/file/43060621938.pdfIn PDF document text
- http://studio-castiglioni.com/userfiles/files/xumusenagarexavobomaxer.pdfIn PDF document text
- http://grafichesirio.com/userfiles/files/75151198462.pdfIn PDF document text
- https://spa-salon.ru/ckfinder/userfiles/files/63952939135.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/nmit26lbsgmlg7n5cn16gsdhs6/36017097033.pdfIn PDF document text
- https://infotechb2blite.com/bot/ckfinder/uf/files/44305290922.pdfIn PDF document text
- https://confidence-ist.com/ckfinder/userfiles/files/satugubuvugoberuzo.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614177594372f---98904307295.pdfIn PDF document text
- http://spreewaldatelier.de/img/editor/file/besidu.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/0au0d4mmvomlc5qeglkgci0i02/54477796255.pdfIn PDF document text
- http://johnmarzillier.com/ckfinder/userfiles/files/13280704393.pdfIn PDF document text
- http://nuklearmedizin-amro.de/userfiles/file/76271331823.pdfIn PDF document text
- http://ramenhajimetustin.com/uploads/files/2242485872.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/99591164186.pdfIn PDF document text
- http://sayarbobinaj.com/file/21950994946.pdfIn PDF document text
- http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/lomepunonuvaras.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/85780779838.pdfIn PDF document text
- http://enotecagaribaldi.it/userfiles/files/49843526715.pdfIn PDF document text
- http://355353.ru/userfiles/file/67647106347.pdfIn PDF document text
- https://ww150004.linebot.net/upfile/files/20210910231300.pdfIn PDF document text
- https://cplastik.com/data/cms/file/79806217658.pdfIn PDF document text
- http://ez-surveying.com/htdocs/cljr/data/files/perefan.pdfIn PDF document text
- http://iproperty.ae/userfiles/file/sinilesobusuvezori.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_off0000e248.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE248 | 18140 bytes |
SHA-256: 60704961fac74d05db14282d962ba16f9923a897ce095ec2b152c7c3d68db5c5 |
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font_01_sfnt_off000110f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110F7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001290e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290E | 10996 bytes |
SHA-256: 61efaf850124f4ae7713e3bc797f96d820b2f922194db937f9b3e2484abbc925 |
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