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 0.9998
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://archism.ru/uplcv?utm_term=genasis+coco+mp3+download PDF link annotation
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/ue93755j1bnlm5i7o9i47ldqo1/55235795054.pdfIn PDF document text
- https://veterinarycarefoundation.org/userfiles/file/mewowozomogegewe.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/35ff6ac1d0ac0001e4e465c6355fdcf2/jodorutuvipuwoz.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/gg3utrek7h2cjstc6mhs8157q5/rivuwejax.pdfIn PDF document text
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/40e96710890caad956b4c181755ce5f2/7331307649.pdfIn PDF document text
- https://amatnieks.com/pictures/image/55671145068.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0d8d5c4f5---5488224429.pdfIn PDF document text
- http://hayatteknoloji.com/webimage/file/vuwopimakisigexitajab.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16092b10999033---59831240581.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bf6f6870707---rizawodiretabi.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/3eb6e2b6c23eba6b579e534670c25b25/kamufod.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/kujupifogetoduk.pdfIn PDF document text
- http://byty-pardubice.eu/UserFiles/File/bajusokexadamenakanasas.pdfIn PDF document text
- http://scard.vn/app/webroot/uploads/files/3615907328.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn 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_off0000d43d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD43D | 5408 bytes |
SHA-256: 17d403e00ad91e2cc44463685e4607d7934ee83a9a9f6508896fe4d4485c41bc |
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font_01_sfnt_off0000e6a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A8 | 16260 bytes |
SHA-256: d0128275f8e9d893ad1d1b213a39e9c3677a81770431a16a25010244c76eee78 |
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font_02_sfnt_off0001133c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1133C | 18776 bytes |
SHA-256: 1df41416ece054d3cca32f135e48dc95f4d9c8a2bff4ba4edba1d14e21aabef6 |
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