MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple links to external resources, including a compromised WordPress site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a second-stage payload. The presence of a link farm on disposable hosting further supports a malicious distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.colegiodomus.com.br/js/ckfinder/userfiles/files/96808655317.pdf In PDF document text
- https://accuratesearch.com/userfiles/file/95921926171.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/17ce0de61cd1fe9a22e00781437076b3/bibepotigominuxejuwavof.pdfIn PDF document text
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c1419418c---bewokunorafe.pdfIn PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/86us26bfgro35f7bnvtipaj0ul/fomekid.pdfIn PDF document text
- http://abogadosaguilar.com/ckfinder/userfiles/files/93263248556.pdfIn PDF document text
- http://palirna-frydek.cz/uploaded/file/65418654749.pdfIn PDF document text
- https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/dokuzuxidojubiwanodukuj.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e94b2673fc4---gasusame.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160b826717164b---nemixupasujaviwovamejo.pdfIn PDF document text
- http://alexanderkanevskyartistbiography.com/clientMedia/file/vosukavevotomazewu.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16094784def1b2---63718940469.pdfIn PDF document text
- http://abroadster.com/files/3633260458.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/ahbknseon65sdfe043r68c8hm1/69707399835.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/5rnqm373v1kgfp693jv7kklpff/bixulomuzazuxamokuvelewir.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210804_2F11E0C9588AAAFF.pdfIn PDF document text
- http://danieldesignpro.com/userfiles/xuruxawikefagejamojusus.pdfIn PDF document text
- http://mobydick-band.de/fckdata/file/geputanifo.pdfIn PDF document text
- http://hoshitorionline.com/uploads/files/rabek.pdfIn PDF document text
- http://nicenpos.com/userData/board/file/25470435274.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/1ac3ffb42061ddc1b94b285b702dbb62/85188095899.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/969098159e947536db9517b5d83f2796/45440943435.pdfIn PDF document text
- http://debandhelder.nl/ckfinder/userfiles/files/95942273185.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608704138522f---14740534544.pdfIn PDF document text
- http://koslita.eu/ckfinder/userfiles/files/24543492852.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/ekha0sh4kt9lp1979d1bucdu10/bafiwutatamatosuwovapovin.pdfIn PDF document text
- http://jcon-aps.dk/userfiles/file/91356282996.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=manuale+patente+cap+b+pdf+2018PDF link annotation
- 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_off000116ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116CE | 10868 bytes |
SHA-256: 32e75285a0bfd4c9e96017e7e50f13e8a7cf2d717fc9dc0868be15fa676b2953 |
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font_01_sfnt_off00012fef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FEF | 18056 bytes |
SHA-256: b58b884a2d44d300b1f505e9c11fbb45e0783fb30f5d08a261b827b04e8e865b |
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font_02_sfnt_off00015d7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D7B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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