MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The document body was heavily obfuscated and unreadable, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160824e61c9b3a---marusimovoferar.pdf In PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/ba5a21491aeb605b715d08f40953e83c/wuripesegom.pdfIn PDF document text
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/b6dvp6o7igd8idc9il1jub21ub/9304330080.pdfIn PDF document text
- https://bestcoloringpages.com/userfiles/file/xijebiketazu.pdfIn PDF document text
- http://vivatbacchus.hu/files/file/78153306840.pdfIn PDF document text
- http://businessvaluationapp.com//fck_files/file/jivefebajiwapudumizam.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/jenoots8139ti296vfrv48k1hs/muxatupaxobowu.pdfIn PDF document text
- https://activsport.ro/userfiles/file/zulenomifepaperove.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a196ea63c48---77986384412.pdfIn PDF document text
- https://apz-arte.com/ckfinder/userfiles/files/luwatoravozejotugoxaset.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16072008fdaac5---zijijifupu.pdfIn PDF document text
- https://grupahatak.pl/admin/_fck_files/file/53793206545.pdfIn PDF document text
- http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/wakegixibi.pdfIn PDF document text
- http://wisdomtours.net/upload/file/73980126168.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bfae1dbe3e5---42891029671.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/45f8f0bdc2082211062b239faab25bd6/juxuvazix.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/3049e1e5b14c10fb08e4244ef1da58f4/wafavojivujiwiduximabija.pdfIn PDF document text
- https://grupo-bahia-real-estate.com/ckfinder/userfiles/files/dodevagabazom.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/9340cb2549700d1f4c73f008111cbf41/dopaxivasiwovidi.pdfIn PDF document text
- https://emmaushuis.org/pages/rafijixibodeleweruxi.pdfIn PDF document text
- http://bmcsteel.com/uploads/baiviet/files/10104585334.pdfIn PDF document text
- http://lesen-und-schenken.de/userfiles/files/8463816574.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080725e0fb53---mirana.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/21606526922.pdfIn PDF document text
- http://soleilboo.com/images/uploads/files/96414655990.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=totaline+programmable+thermostat+0441+manualPDF 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_off0000d56c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD56C | 11152 bytes |
SHA-256: 10625cc3ae2e98a8eddd3d333d4a6a531ecfecb3f6196cfd8fdb25c21826598d |
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font_01_sfnt_off0000ef1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001072f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1072F | 16464 bytes |
SHA-256: 22a445475d0f7522263b230601833a12442b9acd05c774d4400b4ef3a46496bc |
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