MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/b7ccd37a3f4d3b570eca032becb528f4/30456323851.pdf In PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/c0e89aa69eb2d79448a4ce52171bd76b/nidaneguwi.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d925a1348---9897542376.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/7b7c7869b81ddf16466d04ea9d4a6d30/fufizuvagurabomejomod.pdfIn PDF document text
- https://www.orthovision-lublin.pl/ckfinder/userfiles/files/87618772681.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2fddbcc5d---88868183270.pdfIn PDF document text
- http://pusheng168.com/uploadfiles/20210708010159.pdfIn PDF document text
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/a902b5ab2a38bff71e9dbcc69a14d576/popibiwipojobepubuseta.pdfIn PDF document text
- https://anmimar.com/royal/userfiles/file/17562485030.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/rj7vl7970autq5l8q5h7jni740/vunokozevozafugivuba.pdfIn PDF document text
- http://kieryk.pl/img/userfiles/file/8100448597.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e85e25818---21490161531.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/xosepasux.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160942c7f2a8dd---62436765817.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872d6b09f8f---74710537789.pdfIn PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/d5d9c2da59eed0a76e6bccf3851097e7/pikupajidepefulezimeja.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16075d95a483e4---lekamidejimen.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff66c9cc66---58860644012.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/gtmg5e545qavlh278ln0ckik6k/setivanono.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099a0e8b8fb5---rekiser.pdfIn PDF document text
- http://burfel.ru/upfiles/files/67895058238.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/90897662093.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608896d624e67---67347250066.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/88774417616.pdfIn PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/c0a6d970365a901527ee76393eff7de7/kuwajo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=download+dhoom+2+full+movie+in+tamilPDF link annotation
- https://mediaget.com/userfiles/files/72075769635.pdfIn PDF document text
- 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_off000104b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B8 | 17244 bytes |
SHA-256: 6c9cf63059ff5ab3e2729cb682f931744d8b6de56275c325aae553cbd6d92311 |
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font_01_sfnt_off0001314f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1314F | 10724 bytes |
SHA-256: 6fc2b602e4070ae27e828d6785f586faa3cd973862de690c43a35cf961568f8a |
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font_02_sfnt_off000149d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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