MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. Heuristics indicate this is a link farm designed to redirect users, with ClamAV identifying it as a phishing trojan. The ML classifier also strongly flagged the PDF as malicious.
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://smidgel.ru/uplcv?utm_term=breastfeeding+during+hiccups
- http://vorne-sitzen.eu/pcms/content/file/tapumoveven.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/hsihe4ldqcujifs09g5jj63i8d/61130829001.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a52e61cac5---neletosijegekemo.pdf
- http://sivam.pl/files/file/2850175433.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e01a8582f---wezopatodofi.pdf
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/46b499203e072fc06f93e463ef7b9da8/24158839509.pdf
- http://alexanderkanevskyartistbiography.com/clientMedia/file/20764180057.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7b0f1616b---fudemar.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5a3142b4b---fefibixedazovopopetu.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a46e15e0e3---67807142803.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087402770c07---doxagi.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pp8jj1vauucp0hf81pqdr8ob44/pazazavemiwugaba.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075cc6e86074---10967199724.pdf
- http://webinaris.net/ckfinder/userfiles/publics/files/75957566363.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16083c328e5fb5---44344804153.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/vmjsbtgdavkus8qb26nip1bjlg/55144367404.pdf
- http://banglatalkies.com/dynamic-images/cms/file/58641795201.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/5e93cd8ce00c879c8aeb1967ac48e512/80184047349.pdf
- http://urparitet.ru/admin/ckfinder/userfiles/files/92145064270.pdf
- http://kemmurad.com/webroot/img/files/gokadiwiw.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9072260996---lokididurofilapef.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa4227e843---tugevazum.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/towab.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7729500220---65934011617.pdf
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/1ed346beaaba4e7631b5974c02e2c948/kefidinij.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_off0000e7e2.bin09f62d5dc8168f6fcd8a40ff2ed9f639a63c96199212019a0560df2316a2da02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7E2 | 10884 bytes |
font_01_sfnt_off000100d3.bin876b6746b685430a2ccc44c5bb364d0a7915e00af2f572c04a57387ad2c42570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100D3 | 16368 bytes |
font_02_sfnt_off00012b57.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B57 | 16792 bytes |
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