MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous URLs pointing to potentially compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms strongly supports the classification as a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bc6a91800---jomekeguvokome.pdf In PDF document text
- http://generaltubi.com/container/ckfiles/files/nexidetofesarupirotepipu.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/07cb82bf2500b769220bae97bb126848/sewepolu.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610a81c7c2002---9492688903.pdfIn PDF document text
- https://pianoinprimopianofestival.com/uploads/file/medewositadud.pdfIn PDF document text
- http://abwcockeysville.com/uploads/files/witozafomadewadu.pdfIn PDF document text
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/f2d1285551725ec51ee497427d77a045/77191148650.pdfIn PDF document text
- http://kozelskadm.ru/files/uploads/files/fawiluvuwikujoxavuz.pdfIn PDF document text
- http://luvnchrlysenglishtoys.com/clients/861429/File/97534031381.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160775d3b3adeb---toretomevupaxuki.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/rmkm84ja5f8cd22bt0iv8tskh3/47567689491.pdfIn PDF document text
- https://ags-car.com/upload/files/89712254370.pdfIn PDF document text
- http://hms31.ru/img/file/vimuvujip.pdfIn PDF document text
- http://rhondadejean.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/18368097622.pdfIn PDF document text
- https://pr-dienst.ch/file/40053181166.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/plag4p6ouq6b68obppkka5qm35/58140593813.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160772d9d1b6d7---xakerifugop.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/1c654d34ec3fcc68c6832e74848f3c20/77497104436.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cbbece43100---zewubakusoto.pdfIn PDF document text
- https://mmszke.hu/files/file/78939174913.pdfIn PDF document text
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e29ce900e5---degasavifuwojoluxeza.pdfIn PDF document text
- https://tenfci.org/userfiles/file/74245804926.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/89f39302c933b8bcc4e784374f034c89/59405851519.pdfIn PDF document text
- http://print-printonline.com/ckfinder/userfiles/files/79792994018.pdfIn PDF document text
- http://hengfengpaper.com/filespath/files/20210823222536.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=case+study+examples+in+software+engineering+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_off0000e3e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E1 | 16688 bytes |
SHA-256: 31f0c5e502fe324845fe189721dc3d12879a556a769080c63a691160c1738ba9 |
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font_01_sfnt_off00010f2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F2F | 11272 bytes |
SHA-256: a9355ae02853ecf59a3e29a395c5bac5fabbcb51ed32b3b9343bd9ebfaa86224 |
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font_02_sfnt_off00012982.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12982 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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