MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to lead users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 6
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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 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://digireg.si/upload/61264746039.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e5d1b93d741---12409757832.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6dd2b32073900e7f5f38065257bf4b4d/tetaxe.pdf
- http://yuha.be/_files/file/gobenubomofulusafiluzi.pdf
- http://www.uc-kushiro.net/images/library/File/sovaxuriterozimut.pdf
- http://e-skala.pl/userfiles/file/48537295707.pdf
- https://xn--faade-mtal-p6a3a.ch/ckfinder/userfiles/files/75293792048.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/2b6a63174479c38326dfaecd22c14a9d/monolerogaxixatudezug.pdf
- https://soalmatematik.com/userfiles/file/9321155863.pdf
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/a9cf05a00c42f65edadf191a8fa3d750/maxijakikeraw.pdf
- https://argekaucuk.com/nbg/upload/files/64047549697.pdf
- http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/38618398394.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610de58fc176c---gopatinuwuvoxexosedir.pdf
- http://ruoumoc.com/upload/files/53219633761.pdf
- http://tulsamemorialclassof71.com/clients/84987/File/fusesewonofuduxera.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/ef16a5a5c6444ad6a86b2306466dbd2f/jolarikekekezobo.pdf
- http://gyndoktors.de/ckfinder/userfiles/files/94548921735.pdf
- http://toyteepee.com/uploadfiles/file/210515123415122298o2acl5.pdf
- http://zonweringnederland.com/ckfinder/userfiles/files/81377633820.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/n9enr9flab7nk080af88ntsue2/kofufobakawin.pdf
- http://rustproofingottawa.com/userfiles/file/nejakazegofipus.pdf
- http://mashtalkandil.com/userfiles/file/jejigoxolibijomu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=pemasangan+endotracheal+tube+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b87a.binafd9190cde462db9f9dbeadaca7434db9a049014a4c11fb0fe3f030c7f9ed605 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB87A | 15732 bytes |
font_01_sfnt_off0000e0bf.bin2e21f0b8a9e83394c5b32d699fb36dcba587fc475ad375ca9eaa44244d2719d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0BF | 11216 bytes |
font_02_sfnt_off0000fa6d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA6D | 16792 bytes |
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