MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The primary attack pattern involves redirecting users to external sites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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://nomylo.ru/uplcv?utm_term=dry+and+bloody+nose PDF link annotation
- https://samsungdvm.net/upload/ckfinder/files/mujonisira.pdfIn PDF document text
- http://xinyaoqiye.com/upload_fck/file/2021-6-25/20210625173151140797.pdfIn PDF document text
- http://thevisionkharj.com/userfiles/files/lupufiviwibajogofev.pdfIn PDF document text
- http://mastervgtour.by/var/upload/file/rekexusemisemotuvefavuvag.pdfIn PDF document text
- http://allprintusa.com/admin/images/file/noridile.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/r2722p1hms5vik56pdhnv5s1dk/5826234450.pdfIn PDF document text
- http://gianphoiduyloimodel.com/Images_upload/files/28643868096.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/a8c0ef12938b7f01eff220bae7143956/73247391527.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/4ft6sc5jed6ls2gon25o5qstc7/17782642092.pdfIn PDF document text
- http://daedukgs.com/admin/fckeditor/data/file/20210818073756.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/da3305951f262d4bf8c450b274799ffc/wujozonapuzuxedela.pdfIn PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/90562da77987910e564e1ab193e24005/kuworaxivokerajani.pdfIn PDF document text
- http://kids-ex.com/59322137210.pdfIn PDF document text
- http://xn--aknmedcal-wpbe.com/uploads/file/naraj.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160c5757015c04---33381574177.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/54458401529.pdfIn PDF document text
- http://faradbox.pl/files/file/29737925737.pdfIn PDF document text
- https://digireg.se/upload/jugetijaf.pdfIn PDF document text
- http://actinq.nl/upload/file/96583197226.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_off0000be7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE7F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d691.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD691 | 16152 bytes |
SHA-256: 0101c90e0c6e7ad5d5d261a2f6b62d65031d2b9707408362b402c978328b9964 |
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font_02_sfnt_off0000ffcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFCC | 10304 bytes |
SHA-256: 59c987524c48b8629a24b2801dd046ec28ee14e5ac19647f8a45d9a8aa158fff |
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