MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV, indicating it is likely a phishing or malware distribution attempt. The document contains numerous embedded links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure align with spearphishing tactics to deliver a payload or phish credentials.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4803
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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://cuacuondaiphuc.com/upload/files/jewetafu.pdf In PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/vo61795a287aaj58thpq0q7ul1/jopolowef.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a04f61ec9e0---33002246216.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607633fa1e5fe---dozojabi.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/382c4c0bf0a4d8944f1087700981c979/90422981085.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b3e4db8bb---42224892324.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8bbd9ef5f---95050985722.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/gurinovemevesawe.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608478504df21---rubepi.pdfIn PDF document text
- http://anvlaw.com/userfiles/file/tepewi.pdfIn PDF document text
- https://beaszemin.com/files/39799491991.pdfIn PDF document text
- http://mjsolankifoundation.com/fck/imagesfile/84909460165.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/28cn8ntskjkrigslt3rn66ieq0/gowewuxedej.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/mejarilirudowekipug.pdfIn PDF document text
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/6gaagb6kuigctgmfco3qh2vsm4/44298535650.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f5bec5319---48159313688.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/s0g1jh1agrpdh9qe3hlkfn45t7/8860704713.pdfIn PDF document text
- http://rmgoals.com/userfiles/files/61238313706.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/8qr9qc80gvdcjss4vbj92h3t66/65879075788.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094c8cee7f0b---bexowunujazawaki.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/speaokubcf9bg6ns7eb8uvr9ae/zavoditijogofese.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/c201a91571c8dce14d81c89e9645a965/66000939435.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=how+to+deactivate+password+in+pdfPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f464.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF464 | 17696 bytes |
SHA-256: cb01c07cc93a1e462716bc82c0e4337b8da3ed231eb1236344898ac17f4bae81 |
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font_01_sfnt_off000122ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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