MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised or disposable hosting, suggesting a link farm or phishing lure. The presence of external URI heuristics further supports the attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 https://ketchas.ru/uplcv?utm_term=the+manga+guide+to+molecular+biology+pdf PDF link annotation
- http://stluciachamber.org/uploadedImages/contentImg/file/pasaz.pdfIn PDF document text
- http://boki.hu/editor_up/jixonovoxisusireduvo.pdfIn PDF document text
- http://liceoadultos.juniorcollege.cl/userfiles/files/86283418309.pdfIn PDF document text
- https://eagle-aviation.com/userfiles/files/54991414066.pdfIn PDF document text
- https://kocgrafikavukatwebsitesi.demowebsiteleri.com/upload/files/93434672188.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/98497698012.pdfIn PDF document text
- http://pate4me.com/userfiles/file/zarajavozavugekilikujodo.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138971560f29---90512147127.pdfIn PDF document text
- http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/30955122830.pdfIn PDF document text
- http://georgekoldun.com/var/upload/file/77305603682.pdfIn PDF document text
- http://smirna.pl/files/file/tidinone.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/807381da732962e5e6e1e5a78186f7a8/26304741223.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161420ad1a00a7---5352873176.pdfIn PDF document text
- http://ndc-group.ru/uploads/files/37573643757.pdfIn PDF document text
- http://poultech.net/d/files/pesefelokexalanafaw.pdfIn PDF document text
- http://cokhilegia.com/upload/files/wenef.pdfIn PDF document text
- http://nissanotogovap.vn/uploads/images/files/waxibetavedu.pdfIn PDF document text
- http://vom-ragnaroek.de/uploads/file/35769286522.pdfIn PDF document text
- http://bigdoughpizza.com/uploads/files/55768851563.pdfIn PDF document text
- http://divorce-difficile.fr/userfiles/file/86349388110.pdfIn PDF document text
- https://haidangpc.com/contents/files/biniwalepusobujogizuti.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142660cdc59f---matazit.pdfIn PDF document text
- http://w-mill.jp/images/file/vinelupujafefasuzemujuvir.pdfIn PDF document text
- 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_off0000c407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC407 | 17120 bytes |
SHA-256: 0c5fd8fda2786e5a3fe45809992050b2db12b016a465776e6134105d654efbf1 |
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font_01_sfnt_off0000f096.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF096 | 11216 bytes |
SHA-256: 50bf344be220b2ba7f12c9f77e2800b7eeccefd82008377c3c45228f3700d0a9 |
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font_02_sfnt_off00010a34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A34 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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