MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=best+90s+tv PDF link annotation
- http://centronegozi.com/public/segalewoporofifele.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/d01aa6471bbf1f1d6c97768df1c957b4/dekilupidukorutixenus.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/redijibowugope.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160797523d392b---jenomafinari.pdfIn PDF document text
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/afe564b1fa61c903660aa4db3b3235f3/mutekuzoxurevesolusutem.pdfIn PDF document text
- https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d5bf55c58---98652557679.pdfIn PDF document text
- http://anthonyvienna.com/sites/default/files/file/48743798731.pdfIn PDF document text
- http://medicapoland.pl/uploaded/file/nukamofipovexumabep.pdfIn PDF document text
- http://wuxihemei.com/ckfinder/userfiles/files/20210605_010644.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/69770145163.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/uakuah11v189lsm5m08cnkb6d7/pesadevudi.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/85835988291.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607551281f088---28847990375.pdfIn PDF document text
- http://aihyang.com/userfiles/file/53565218730.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/91c135146f51808dbbba99aac519664e/basekoxito.pdfIn PDF document text
- https://ipic.vn/userfiles/file/luxozefoke.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ba522a715---zijedunuvuzagawinizagaxu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cbf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBF4 | 4748 bytes |
SHA-256: 244968cbb6acf1f4b9eff837c7f83a3ca3e9b561aa9372ba05b4f39997964069 |
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font_01_sfnt_off0000dc3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC3E | 10276 bytes |
SHA-256: 8d659e9146db10ff4da75b3802dc8ad46572f15e50e38770414021b9135824bc |
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