MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of external URIs and link farms on disposable hosting further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://medvor.ru/uplcv?utm_term=tier+2+intervention+strategies+for+math
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/819e1faf96245038233d1f7d7b8b660b/zuvavorokefewarazirileta.pdf
- http://medica-brno.com/files/13398503904.pdf
- https://pelletier-tp.fr/ckfinder/userfiles/files/fomorezipijifebisivod.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d582c7fcf9---misamumexulaxufopodobesab.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/107694ae0b15ec38706874aa8160aef1/13143454123.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0cbde83ab5---nodoxanadenavumimutefema.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1607093330b7fb---ripogalejowik.pdf
- http://www.urbanwaterways.info/files/27616120130.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/m5nnc2nes1p97r0hqm8opvg642/25115661495.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/e3d71fe7f1d71c53f1e08bf6249ea2d5/redekanal.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ee09e7e47---67462066045.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b84a351ef2d---91890091104.pdf
- http://dungcubepgiangtrinh.com/webroot/img/files/salulu.pdf
- https://abofahed.com/userfiles/file/19586213666.pdf
- http://cuatro-pr.org/sites/default/files/file/1600713015.pdf
- http://stinpo.com/ckfinder/userfiles/files/ridosogupu.pdf
- http://aliceinformaticasrl.com/user/pages/85382689915.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/b55b0f6a82b97bb023b5d5abdcca718d/rowivakazuxesujuxo.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/n0gpcsg7f0jdsjf5sc02qbii36/77379540080.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/17fa50e0653b9130be3b3e963b7da2d8/35563727689.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/0asha1o7b6n87kelsaf0n0b1i8/6892256700.pdf
- http://otoozevran.com/resimler/files/fatexaje.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bba57fd00ab---fidoge.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/e6dde93fdd8b3a62327c277ba19c6f25/daxatojul.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160719117a5232---76811684468.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_off00010917.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10917 | 16792 bytes |
font_01_sfnt_off00012129.bince0eceed8cc9b98df8bd02901a214085ee59824d18ee5d927cf1bc01b773cb08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12129 | 17076 bytes |
font_02_sfnt_off00014d4a.bindc283834dd56a04927e99c5a95b63f054eef94c868828ba0526c1170ac72fabf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D4A | 10764 bytes |
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