MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a high number of embedded links, many pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the numerous URLs are the primary indicators of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://searchkar.com/ci/userfiles/files/tazabisoxidemaloxoxubowi.pdf
- https://lamaisonducoeur.ca/upload/editor/file/jodevajotakiguxozuji.pdf
- https://nacionalequipamentos.com/ckeditor/uploads/files/20931190652.pdf
- https://butterfly-propertymanagement.com/userfiles/file/9822697248.pdf
- http://bmsorganica.com/userfiles/file/12480037086.pdf
- https://ewt.cz/res/file/pikewerugomenidotim.pdf
- http://goraku-sangyo.com/userfiles/file/sapuxunupowatepomefori.pdf
- https://samarpanbharat.org/trila/userfiles/file/8555240352.pdf
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/7462ebd512a8d8bfad23b8e806fd1626/6526823156.pdf
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/aq9q1ckssmmldctor13pqigmni/xevikovozopalobariline.pdf
- https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/7cd95b8a97e6918772866d2d10197f72/lusisufukavodiwovimod.pdf
- http://przedszkolenisko.pl/userfiles/file/14056037535.pdf
- http://dreamcatcherltd.com/userfiles/file/bujuti.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab72d2401a0---50923392390.pdf
- https://sieuthimayphat.com/ckfinder/userfiles/files/lixoxumaxoluretererotex.pdf
- http://bajcsidavidfoto.com/_user/file/209856658.pdf
- http://ebbers-schilderwerken.nl/uploads/files/43955553734.pdf
- http://villabrown.it/userfiles/files/86431977035.pdf
- http://studiomistretta.com/userfiles/files/5697790504.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/7c175531154c389d9809ee33504a7ea2/ponobefu.pdf
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/zivizemefaminiboxudawof.pdf
- http://timeyear-v.com/userfiles/file/wifuzadajonijepegejok.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160aea85f01966---zuvarimezosikekizonubi.pdf
- http://jcpingie.be/public/files/buluxuxum.pdf
- https://moscowfashion.net/content/xuploadimages/file/13414749805.pdf
- http://cl-pub.com/files/files/99414399923.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=ejercicios+de+factorizar+de+la+forma+x2%2Bbx%2Bc
- 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_off0000ca10.bina73c0104678521102ab9bb9142aa39e16892e935bc557dbaf14fd7d8747b9469 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA10 | 17256 bytes |
font_01_sfnt_off0000f604.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF604 | 16792 bytes |
font_02_sfnt_off00010e1b.bin0c11ba421a1fe92d9dff89d688a16c52f85ecad88e6d164e0f30015be356f8b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E1B | 11068 bytes |
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