MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised or disposable hosting, forming a link farm. The embedded JavaScript, while not directly executable in this context, suggests an intent to perform malicious actions if exploited. The primary attack pattern observed is the use of a link farm to redirect users, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://security-m.jp/tool/images/file/52352608600.pdf In PDF document text
- http://sonnenheizung.ch/fckeditor/editor/images/file/tikafuromewudoj.pdfIn PDF document text
- https://olboihorgaszto.hu/editor_up2/14596769423.pdfIn PDF document text
- http://tai-yang.tw/taiyang/upload/file/vilid.pdfIn PDF document text
- http://physio-praxismitte.de/userfiles/wefosozota.pdfIn PDF document text
- http://colorfulmedia.de/fotki/fotki/file/17889531527.pdfIn PDF document text
- http://sarkar.ie/userfiles/file/xiwixuxikuxepavixudemoko.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/lefemijupegu.pdfIn PDF document text
- http://blessingsngo.in/userfiles/files/nusiged.pdfIn PDF document text
- http://maezawa-jidousha.com/js/upload/files/vupawonixilojoxobol.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/vb6on4223h4j94rts3lks632nr/78775625638.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/xagolumuwalu.pdfIn PDF document text
- https://sasalidayanisma.org/uploads/file/vutojenobejovuboroz.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133710c2ab8a---bifazukodi.pdfIn PDF document text
- https://chambres-a-la-ferme-plouzelambre.fr/userfiles/file/xisewozexowofixukuvuro.pdfIn PDF document text
- http://stickerbarcode.com/file_media/file_image/file/10200181106.pdfIn PDF document text
- http://thedewakohchang.com/image/upload/File/5447341840.pdfIn PDF document text
- http://17njl.com/userfiles/files/20691760807.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16143f87d9a3f7---69348031871.pdfIn PDF document text
- http://utpcomp.ru/uploads/files/49311951447.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=best+site+to+download+punjabi+moviesPDF 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_off0000d1eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1EB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9FD | 17836 bytes |
SHA-256: d2127904edc4621dd6f664ef3cca4216fb5531bdd8772a9dbf138f17cfe1a77f |
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font_02_sfnt_off0001176a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1176A | 11028 bytes |
SHA-256: d3f8bf75ed4f1f4d538d688bc08b26487726ecff14209359f3d69ab6aaee3bda |
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