MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports this, suggesting an attempt to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://www.kroonzuivel.nl/ckfinder/userfiles/files/xekasepepevuziwixa.pdf In PDF document text
- https://egokituz.eus/files/galeria/files/nizirejijelutekutipi.pdfIn PDF document text
- http://cmtdental.com/upload/ckimg/files/dexudeganosugesesesa.pdfIn PDF document text
- http://el-master.ru/userfiles/file/gubijabuje.pdfIn PDF document text
- https://bitree.com/ckfinder/userfiles/files/33115257195.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cefb1908bc---9331559549.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d94ee03a8---46004428595.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a613196dd---xakekene.pdfIn PDF document text
- https://medtek.vn/storage/file/88598576559.pdfIn PDF document text
- https://alharithiforcameras.com/ckfinder/userfiles/files/pizuvivejegife.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/govewepaxisogikakagino.pdfIn PDF document text
- http://zhjpharm.com/upload/files/nabesiwikipelabipejuwatak.pdfIn PDF document text
- https://alley.52886.tw/uploads/files/57816433320.pdfIn PDF document text
- https://istanajp.net/contents/files/lupibixijeporime.pdfIn PDF document text
- http://360global.ca/userfiles/file/21126687593.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161475fcd2d8c0---57017216033.pdfIn PDF document text
- http://jatechkj.pl/upload/fck/file/gibesosopezawinurafux.pdfIn PDF document text
- http://huspanda.com/data/ckfinder/files/47489144675.pdfIn PDF document text
- https://olgunbey.com/upload/ckfinder/files/gijizirapeg.pdfIn PDF document text
- http://banquat.com/userfiles/files/77890116273.pdfIn PDF document text
- http://opuspointpartners.com/ckfinder/userfiles/files/27341591543.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=unlock+android+tablet+with+google+accountPDF 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_off0000b19f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB19F | 10904 bytes |
SHA-256: 18858a036b075d93b4808ea7d373e7f21981a99facc7e443b307b65438efb622 |
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font_01_sfnt_off0000caa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAA5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2B7 | 17048 bytes |
SHA-256: 6c14a553c977af93a2cdd1dbdae4583475027d0d845ddbdc0440ee8224fb9ab4 |
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