MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous links pointing to compromised WordPress uploads and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to an attempt to exploit user trust via compromised web infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://simorgh.it/uploads/file/65667511324.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614242bf3a0c0---98557677500.pdf
- http://buyyoutubecomments.com/ci/userfiles/files/4451654316.pdf
- http://dxczx.com/ckfinder/userfiles/files/20210908_110427.pdf
- http://e-menu.hu/editor_up/kajezajadapav.pdf
- https://psg66.ru/admin/ckfinder/userfiles/files/nuvev.pdf
- http://uptownfallschurch.com/uploads/files/20531725412.pdf
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/6e5de7489716ff86425c73bbd6e9b581/nivumarunitugifaxad.pdf
- http://proreferee.ru/uploads/ckfinder/files/doloxepotewenavu.pdf
- https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/78947940696.pdf
- http://abwcockeysville.com/uploads/files/99917551091.pdf
- http://natalieshuff.com/uploads/file/manog.pdf
- http://rejs2013.cycling-recycling.eu/imgturysta/files/47034107836.pdf
- http://aelma.com/sites/default/userfiles/file/bevagorexenedelibowu.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/979c30fc0a788b9dd0d3eceddf9e3394/tutoga.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/pkiqgejubue26gobcq5v001tkp/36297477438.pdf
- https://textosolutionslinguistiques.ca/upload/editor/file/22139396541.pdf
- http://slr-eyewear.com/slr/userfiles/20210903050721.pdf
- http://newtrichur.com/userfiles/file/33984707567.pdf
- http://longruiglass.com/ckfinder/userfiles/files/20210913_081635.pdf
- https://bawwabatrizq.com/userfiles/file/98863621867.pdf
- http://casinodanmarkjackpot.dk/userfiles/file/52006636374.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/d45209f8d6583ed169c80db338eabb0a/wuwoxina.pdf
- http://miwon.com.vn/app/webroot/uploads/files/wubet.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=muscular+system+anterior
- 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_off0000eced.bin99dfd18a99375a1d12a2ea50a0209e0c5f120ad4018b5529bba8dc5dc9a214cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECED | 10600 bytes |
font_01_sfnt_off00010532.bin9990d80ada10d6d7e715c8fd15b9407695c1d4a195514a6f9fb8f674586e97ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10532 | 17144 bytes |
font_02_sfnt_off00013192.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13192 | 16792 bytes |
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