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 reveal it functions as a link farm, with many embedded URLs pointing to compromised WordPress sites and disposable hosting. These links likely lead to phishing pages or further malware downloads, consistent with a spearphishing attachment attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c74ae31fd8---kulolona.pdf In PDF document text
- https://bazk.info/public_htmluploads/file/31857018096.pdfIn PDF document text
- http://hattingtoemrerogsnedker.dk/userfiles/file/9939475586.pdfIn PDF document text
- http://lmtechsolution.com/userfiles/sewonizagofogali.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d6d6ea2c8---wuzejesopifekeviwolujaki.pdfIn PDF document text
- https://reklama71.ru/upload_picture/kasuzetoxifinugulusewagaj.pdfIn PDF document text
- http://quantri.thaisonpalacehotel.com/upload/files/widasidoxok.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/rete14rd8n2hmavu6u6ra25fu4/57285285270.pdfIn PDF document text
- http://fecoil.com/userfiles/file/16535912083.pdfIn PDF document text
- https://bozoklar.org/ckfinder/userfiles/files/25281271828.pdfIn PDF document text
- http://vngo-cc.vn/cooker/public/files/popefuwubegenemaxivo.pdfIn PDF document text
- https://copperscraphandlers.com/ckfinder/userfiles/files/4649165452.pdfIn PDF document text
- http://hoteldarim.ir/basefile/hoteldarimir/files/megituzekibinujoz.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/83875473001.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d12d1e5b73fee9ca433b9dccd1b1a636/41378702398.pdfIn PDF document text
- https://protum.se/file/todaxexovubobo.pdfIn PDF document text
- http://soc-in.com/data/media/files/gapegesu.pdfIn PDF document text
- http://keemunblacktea.cn/uploads/file/050929168123.pdfIn PDF document text
- http://urs-certification.com/gais/image/file/17211764095.pdfIn PDF document text
- http://tagsu.com/attachments/fckattachments/file/88977368923.pdfIn PDF document text
- http://headlinesdinerla.com/uploads/files/zebabezivakakegu.pdfIn PDF document text
- http://musicfriend.vn/public/default/ckeditor/files/sititimojiwixig.pdfIn PDF document text
- https://kapefashion.com/files/files/jasizix.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/pagadudoxivexibef.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=unlimited+money+for+asphalt+nitroPDF 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_off0000b048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB048 | 16156 bytes |
SHA-256: e28ebfc06fbef685d6b0de5daf3f008e6e505eef6aac8da296e89823862b82a7 |
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font_01_sfnt_off0000d9ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D1 | 10884 bytes |
SHA-256: f555ed61893b7706bab9ee9d14051371ae00de10312035ab1f3dca53fc8ea7c4 |
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