MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links pointing to external websites, many of which are hosted on disposable domains or appear to be compromised CMS uploads. This structure strongly suggests a link farm designed to lead users to malicious content, likely phishing pages or malware download sites. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://thietkewebbacninh.com/webroot/img/files/gonujuxuzadegek.pdf In PDF document text
- http://bafiti.com/sklep/userfiles/file/1997168344.pdfIn PDF document text
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/0rhh4ddp9ls5rvms21abj96uca/39087705995.pdfIn PDF document text
- http://aftckwt.com/uploads/file/pexeburupoxuk.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16072f1c55bb98---93361468956.pdfIn PDF document text
- https://pearproperties.in/userfiles/file/judolapizesuberowepam.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aed3b10b01---21606236050.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/jepuximiserixam.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/6bag7vmednln54mvb7mlq052v2/xaxivulefonuwoxefulirav.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16095b636dc593---besudomugilibufufo.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/f496f68a3376896dd25451c5d3ae6635/namopopapovurobefazukoro.pdfIn PDF document text
- http://cnokorea.com/userfiles/file/susexomexuverubopafavumew.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d610144354---60591340134.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd20c0126e---wogawarinizevijo.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a41af76328c---samosenebezagopipupe.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160869f0dd5700---8590634278.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/28531709904.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/piviwiwigurerosafonesudu.pdfIn PDF document text
- https://fo-prefectures.com/pages/files/66068008492.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b8360f94405---18498982061.pdfIn PDF document text
- http://technocom.pl/editor/file/fidemoleranizofoboxapeliw.pdfIn PDF document text
- http://xetaihyundai.net/upload/files/bodugowibuwimibot.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/0e646fcd9fdf2e7686d787970e0c8a34/73932185585.pdfIn PDF document text
- http://kstarsmall.net/userfiles/file///bujeluk.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f83a745cc---74880560146.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=exoplanet+discovery+2019PDF 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_off0000ef25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF25 | 11236 bytes |
SHA-256: 4b9570974e81bd9a36db9995f7033ba99f86e984b70fd54160fe92ad806f0c64 |
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font_01_sfnt_off000109bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BD | 17080 bytes |
SHA-256: 51376b845e3226760025fc06ff5a0930e6996fc00e3d80b6fa34592d6a7f81ec |
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font_02_sfnt_off0001362c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1362C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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