MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to disposable hosting or compromised CMS uploads, indicating a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely a phishing or malware distribution lure. No scripts were extracted, but the structure and URL patterns are indicative of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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 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://pistant.ru/uplcv?utm_term=the+aleppo+codex+pdf PDF link annotation
- http://yearbookplus.com/uploads/ckfinder/files/90923967311.pdfIn PDF document text
- http://studiovalecchi.it/userfiles/files/11210405264.pdfIn PDF document text
- http://www.koeru.eu/failid/file/zutonuxogufuwamux.pdfIn PDF document text
- https://bhopalliteraturefestival.com/mpsdp/uploads/files/xoxawo.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/f61b736d06662bdcd2fe7498af65f867/9551370250.pdfIn PDF document text
- https://granitabrasive.ro/editor_up/67449635770.pdfIn PDF document text
- http://abwvictory.com/uploads/files/jarokaxagiwo.pdfIn PDF document text
- http://pilanatofishing.com/home/sandbox/domains/shelter.sandbox.tritek.hk/public_html/ckfinder/userfiles/files/81130386475.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1614136f3e6fb5---gomagefojasidebuj.pdfIn PDF document text
- https://leuphuotcamap.com/uploads/image/files/lazevepavosukubedo.pdfIn PDF document text
- http://caratow.eu/userfiles/file/99158457204.pdfIn PDF document text
- https://purmoradiatoriai.lt/images/files/vetemadekazedabelobadu.pdfIn PDF document text
- https://mollis.rs/files/darixelezasuzajaporuzik.pdfIn PDF document text
- http://hk-bbc.com/upload/file/38300837003.pdfIn PDF document text
- https://istanajp2.com/contents/files/36097117923.pdfIn PDF document text
- http://dtmaso.com/public_html/Imagens/file/68318985458.pdfIn PDF document text
- http://gruppocinofilomarsalese.com/userfiles/files/36025033111.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16141fa121554d---97658740398.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139defb3a30b---56903616624.pdfIn PDF document text
- https://suavitinhtannha.net/upload/files/73089685230.pdfIn PDF document text
- https://karapinler.com/calisma2/files/uploads/wukazufobuwibovap.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/purolubudox.pdfIn PDF document text
- https://lecachet.fr/docs/files/23679981453.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_off00010fd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD9 | 20092 bytes |
SHA-256: 4babe3a4a9df615a323205aeb3fcfd6772082b96917c6bceeeae0bbe7fe65288 |
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font_01_sfnt_off00014483.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14483 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015c9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C9A | 10220 bytes |
SHA-256: 3cf4e886cc5dcbec045791a7cc6586b633f999d5caf46b178e86f669966a7083 |
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