MALICIOUS
184
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 contains a link farm pointing to multiple unknown URLs, suggesting a phishing or malware distribution scheme. The presence of embedded JavaScript further supports the malicious nature, likely used to redirect users or execute further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cukiernia.eu/upload/files/nijarukewelivafi.pdf
- http://alvitraders.com/files/xalanuxitupexotiwopo.pdf
- http://www.oiseaubleu-promo.fr/userfiles/file/niwewogu.pdf
- http://ferrocom-spb.ru/userfiles/files/mufazetepetibim.pdf
- https://ww150007.linebot.net/upfile/files/20210912044639.pdf
- http://perfectionistpaintingnj.com/ckfinder/userfiles/files/wirumisovurexurodikured.pdf
- http://proallprint.com/userfiles/files/kagimajanabiboteti.pdf
- http://qishuochem.com/siicea/userfiles/file/wunumifes.pdf
- https://khonggiansangtao.com/platformecom/img/upload/file/kedojosuxejad.pdf
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/82477847735.pdf
- http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/41051193134.pdf
- http://boras-sjuharad.boj.se/uploads/userfiles/files/xafidulivexenebitofo.pdf
- http://leguido.net/files/nobanawasadebuxolarufe.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/g2e9aqd0h7or26tha3m3tqg595/34948206197.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3b5c4d061---figupadoxojopisizel.pdf
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/xekobomeretarosuvovorozev.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/5q01bbeu2apcbs7se8o5m2e2qu/48197220300.pdf
- http://longbienco.com/js/ckfinder/userfiles/files/fosisipituromikomalumunig.pdf
- http://rutka.pl/media/upload/files/7c0d7d64fa5da9130810b409188cb2fe.pdf
- http://cc-loges.com/uploads/file/14744072330.pdf
- https://priscar.com/documents/files/57795185145.pdf
- http://inspiredindianfoundation.org/uploads/42789157059.pdf
- http://soloparamideco.com/js/new/fckeditor/userfiles/file/zinanenofog.pdf
- https://pezenasenchantee.fr/userfiles/file/bejejisa.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=xnspy+for+android
- https://lapdonline.org/file/fopefunuriw.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_off0000ed53.binb1354da289302b63f2b27ddf68688a48c499238e9649a9e54ebb274c13b31379 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED53 | 17504 bytes |
font_01_sfnt_off00011a63.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A63 | 16792 bytes |
font_02_sfnt_off0001327a.bin80671f9420f1ac15e0d8c736a73511aad25989fda5c96c197eebaf1b151662ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1327A | 10336 bytes |
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