MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress installations, suggesting it functions as a link farm. The presence of external URIs and the ML detection indicate a high likelihood of this document being used for phishing or to distribute further malware. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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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://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/gc8m4arro6hqsqegbb51q8erfe/sewupikalubizegudam.pdf In PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16088e7e8dd7e0---mipidudeponuwajavebenamo.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/nisabon.pdfIn PDF document text
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/d7fcc965bee05687f2e4c9839995190e/24911300404.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6a5eda1b6---9420315904.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed28031346---69886523902.pdfIn PDF document text
- http://jtipartner.com/ckfinder/userfiles/files/baburot.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075713112890---nezewibeleverepet.pdfIn PDF document text
- http://kameleonhastanc.hu/files/file/befapiw.pdfIn PDF document text
- http://asokmontridental.com/userfiles/file/27822939167.pdfIn PDF document text
- https://tigapilar.com/upload/files/jujamixew.pdfIn PDF document text
- http://otohyundaidanang.com/uploads/image/files/zebepojepobodojete.pdfIn PDF document text
- https://aulacvn.com/upload/fck/file/dalegipixizajokujisore.pdfIn PDF document text
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16084e2fa8c6c6---23034649297.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/5noqm3hliuvgo91t9bf4i85vd6/5353361599.pdfIn PDF document text
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/cf8902e3c1a6ba9811854f9a7aba248b/1174819524.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/pezabojebimuloxikugomaxeg.pdfIn PDF document text
- http://amadpich.com/userfiles/file/12622117749.pdfIn PDF document text
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089d3522a4a5---sajuxozet.pdfIn PDF document text
- http://eprdel.cz/userfiles/file/somusalobebujovaxexadefe.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/abce163ff2c1f6dfc12c41a723c36efa/depogawaluzodijol.pdfIn PDF document text
- http://acril.ru/ufiles/files/bigimadituvi.pdfIn PDF document text
- https://fonixkoncert.hu/upload/file/9054991479.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae0a7a6122e---golufenup.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c406ae929a2---74727304589.pdfIn PDF document text
- https://deepex.hu/hirek/files/45632216266.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=qualities+of+a+good+head+of+department+pdfPDF 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_off0000ea31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010248.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10248 | 11104 bytes |
SHA-256: 57b4a935f63f942675b5f479c4aaeb87df18a5212076aea7333e95620fa77799 |
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font_02_sfnt_off00011bd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BD9 | 16980 bytes |
SHA-256: 38b69477a1be0f7b067f0ddfc7ab033f45c0c2ef3aed0a6a20706b3ddbe54638 |
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