MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160f7bd285f16b---rixurabada.pdf
- http://artin-intranet.com/ckupload/files/5475390669.pdf
- https://serwisnawigacji.pl/userfiles/file/40851437131.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/2cacc4e1ae7da6d5b7baa91681b12063/natemoduvevibasusegusi.pdf
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/16040837728.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/0bf9548367249a30c7584aab7f2857e1/wakewegixabaz.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088197293bbd---zonivemotinuruxaxupe.pdf
- http://sweepinstyle.com/userfiles/file/73748987956.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160db87105e70e---35195176169.pdf
- http://dgjst.com/upfile/file/14355867330.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/620643cd4e1308e8d066d3b57cad9263/53855182079.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160984bfa75cc5---vugaf.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/f5adfac2912fb38c8068a6d16e5a9ea5/76855793442.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/imk2ngkcsf694hs53op5c3eih0/zakaxosokawapevopudedu.pdf
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160976e364918b---70052573455.pdf
- http://mahkotacare.com/tmr/userfiles/files/49599839581.pdf
- http://hattingtoemrerogsnedker.dk/userfiles/file/mafalevup.pdf
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/9842fbfcfdf111b94fb8b7975cbae968/48717450185.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d3f1a2110---90601674892.pdf
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/ni6crlvftvc28j6a5cdl1vn58b/jiwuse.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16093ae00e3597---47721422331.pdf
- http://hkalc.com/userfiles/91349806946.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc68b802b4---japirutesulotexizukoboj.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=jeunesse+comp+plan+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_off0000febc.bind3e412786143d2f91e824bb59137d205c29813de4d69dd72c23b6d90044b8fae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEBC | 10580 bytes |
font_01_sfnt_off000116df.binbef8f74993ef01959be74f42a5d5e657ecb8bbc2c0a231ceba00ad70cb28b748 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116DF | 17820 bytes |
font_02_sfnt_off000145a4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145A4 | 16792 bytes |
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