MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://kbcsisa.com/upload/fckeditor/file/31673094700.pdf In PDF document text
- https://rajnnuhiddje.se/userfiles/file/pepifotosefufarof.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316a1c96455---dokagu.pdfIn PDF document text
- http://kyochonbuenapark.iorderfoods.com/uploads/files/minew.pdfIn PDF document text
- http://konferencii.org/web/uploads/assets/file/nasavot.pdfIn PDF document text
- https://www.prieur-equipement.com/ckfinder/userfiles/files/rudodizabutunerurevi.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16137e483ed4dc---28380271328.pdfIn PDF document text
- https://grdr.org/paidel/ckfinder/userfiles/files/xojejolulikozuxunijajelo.pdfIn PDF document text
- https://lifeteacher.tw/uploads/files/202109071318069973.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109060223191529.pdfIn PDF document text
- http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/9550854093.pdfIn PDF document text
- http://capableapp.com/uploads/files/xowunes.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135238922216---71210547445.pdfIn PDF document text
- https://inprovitperu.com/ckfinder/userfiles/files/38169839973.pdfIn PDF document text
- http://makesomenoise.hu/upload/file/bosukexo.pdfIn PDF document text
- https://pmrmhss.com/userfiles/file/97159346662.pdfIn PDF document text
- http://www.pranabkumar.com/fckimages/file/7386231470.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/8vtsmgl28nd55irit1g0hdfubr/wewebozevujolakukoki.pdfIn PDF document text
- http://omatsuri.kr/data/userfiles/files/fowozok.pdfIn PDF document text
- http://falerisztika.hu/tmp/doxirovujar.pdfIn PDF document text
- https://rts-wm.com/ckfinder/userfiles/files/16627266515.pdfIn PDF document text
- https://kopari.hu/files/file/nowerejiximozato.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=capitulo+1a+answer+keyPDF 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_off0000b190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB190 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9A7 | 10720 bytes |
SHA-256: b79f8b4653101d529794947182cdeb41cfda0eac215a68eb983f0d1933a6dd4b |
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font_02_sfnt_off0000e291.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE291 | 15228 bytes |
SHA-256: 8c8e9ca6f6e35eb4fb51dd305c0bbbe9fdd49f5134003a40a78dd23ab0a2bf2b |
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