MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to lure users to malicious sites. ClamAV detection and ML classification strongly suggest this PDF is a phishing trojan. The presence of multiple external URIs and link farm heuristics supports the classification as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 https://kinhdoanhvaphapluat.com/img-dn/files/51683843076.pdf In PDF document text
- http://zjbfjt.com/upload/files/dubuxurubitu.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/rosafirud.pdfIn PDF document text
- https://turkihale.com/userfiles/file/In PDF document text
- http://mdbim.pl/ubezpiecz/obrazy/file/67015159051.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/55c42d0972d84e8fa32116180006aeb7/73747886087.pdfIn PDF document text
- http://393citizen.com/upload/files/41559834621.pdfIn PDF document text
- http://modelseafarm.com/kweb/ckfinder/userfiles/files/wekemodelalunisejuvilus.pdfIn PDF document text
- http://nhadeptannguyen.com/uploads/files/57397101685.pdfIn PDF document text
- http://grafichesirio.com/userfiles/files/bewemoledi.pdfIn PDF document text
- http://gibisch.com/files/files/juvufigovavo.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cb3335d5f---84771332832.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/1154216471.pdfIn PDF document text
- http://spl-designs.com/ckfinder/userfiles/files/96225246663.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16138dd0573316---kizogezesewi.pdfIn PDF document text
- http://pastadimatteo.com/ckfinder/userfiles/files/50594421124.pdfIn PDF document text
- http://mylead.mandiricareer.net/contents/files/wijegenotomu.pdfIn PDF document text
- http://jongauger.com/ckfinder/userfiles/files/fepisenexigazinusesilevos.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/3157b75a1b84cb2616e6138e8e0416fc/74253812715.pdfIn PDF document text
- http://olgapolyakova.de/files/files/83038719547.pdfIn PDF document text
- https://sangolongphuong.vn/longphuong/news/files/wabepobifumutivituxile.pdfIn PDF document text
- https://swift-tw.com/lcc/upload/files/betagatam.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/78710307199.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=archer+pocket+listing+full+episodePDF 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_off0000b203.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB203 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA15 | 15148 bytes |
SHA-256: 8d1459e64b3b1d0e2321a447f6399b46ed09c6a4e2469667a04b4f979950b23b |
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font_02_sfnt_off0000f0a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A1 | 10908 bytes |
SHA-256: 8210bacedbb9d70be7171c7220b2e8dd8a5e69a9d93e5157748169363d219080 |
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