MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to multiple compromised CMS upload directories, indicating an attempt to host malicious content. Heuristics suggest it's a link farm on disposable hosting, and ClamAV detected it as a phishing trojan. The ML classifier also strongly flagged it as malicious. No scripts were extracted, but the structure and URLs suggest a phishing or malware distribution lure.
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 http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161392351ea965---fobixizitibajinori.pdf In PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16132302da9ec0---posuxupopegenawobal.pdfIn PDF document text
- http://tencanpowder.com/d/files/pekisoxu.pdfIn PDF document text
- https://fibra-optica.ro/ckfinder/userfiles/files/9536786698.pdfIn PDF document text
- https://malabarmail.com/ckfinder/userfiles/files/54200450515.pdfIn PDF document text
- https://airflow-skateboards.com/userfiles/files/liromabivixufagigovod.pdfIn PDF document text
- http://wwpokebar.com/uploads/files/85548297443.pdfIn PDF document text
- https://33mobility.net/uploads/files/welumomagodokuwuj.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/76414764686.pdfIn PDF document text
- http://shmgec.com/Uploadfiles/files/fevenomakoriwavozaserig.pdfIn PDF document text
- https://florissantdesign.nl/docs/Image/file/16526842002.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/97651610503.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/daneresi.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/452423246.pdfIn PDF document text
- http://vipforiraq.com/userfiles/files/bepamabonakamalogaguzogaf.pdfIn PDF document text
- http://annassteen.com/ckfinder/userfiles/files/xefot.pdfIn PDF document text
- http://sakesushilakehavasu.com/uploads/files/negijuba.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/limotataxegesuxogo.pdfIn PDF document text
- http://dc-42351dc5a6b3.prshots.es/uploads/userfiles/1630947335/files/luzubutaduzorebijud.pdfIn PDF document text
- http://perila-vrn.ru/userfiles/file/86206695194.pdfIn PDF document text
- https://anandalaya.in/resources/file/telod.pdfIn PDF document text
- https://stabiactiv.com/userfiles/file/10279768616.pdfIn PDF document text
- http://cocoon-source-harmonie.fr/public/file/12146287230.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=undertale+ultimate+timeline+codesPDF 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_off0000c2ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2AB | 17268 bytes |
SHA-256: d4d8599439e13085527e8e1ffaae250d18b6438d6490b4ba88b572deb352d93c |
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font_01_sfnt_off0000ef83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001079a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079A | 10640 bytes |
SHA-256: 13309a13f5bf07d5ac35bf24fc9550df79b8f8dd04d6c42741f381e82f416b97 |
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