MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and is identified as a link farm, with many links pointing to compromised CMS uploads. The presence of embedded JavaScript and ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely to lure users to phishing sites or download further malware. The document body was unreadable, but the heuristics and URLs are sufficient to infer a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=manual+testing+vs+automation+testing+salary PDF link annotation
- https://abyway.lv/images/ck_images/files/87132093437.pdfIn PDF document text
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/m8l4u726ifi5a2eac0adnp3o44/86300086276.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160706f9f6bf01---kikamobexagu.pdfIn PDF document text
- http://kodemari.info/data/files/lafijetezowijezepe.pdfIn PDF document text
- http://aven.su/userfiles/file/lufiv.pdfIn PDF document text
- http://xn--80akoseq9f.xn--p1ai/userfiles/file/godevonidurufatojoxabe.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16072a5ae4b18b---pipisumabovuturowevagota.pdfIn PDF document text
- http://ikuma-car.com/js/upload/files/zesuxuboxasulazu.pdfIn PDF document text
- https://solener.info/ckfinder/userfiles/files/6836605340.pdfIn PDF document text
- http://watchimport.eu/userfiles/file/wegokavevamokedizak.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b89a245f6d0---malazejewo.pdfIn PDF document text
- http://leton.pl/userfiles/file/fodojaxiwop.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160c7293617b48---72902875050.pdfIn PDF document text
- http://com123.vn/uploads/file/7768365815.pdfIn PDF document text
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/8bd6384fe25f5d72929c4b151c9c7814/virowagapumaradokiwawum.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161348a93f3c7b---lerimivipogobozewe.pdfIn PDF document text
- http://pusancard.com/userData/board/file/93519654474.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/161336fbd641d4---12848180737.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/676920efba080998d75a4a378ecb14cf/22221576942.pdfIn PDF document text
- http://maschimaurizio.it/userfiles/files/galiwazaxefowotitatilazo.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160922db16bcfa---towiluneloxopali.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/bogofawebifowo.pdfIn PDF document text
- http://ms-krmelin.cz/app/webroot/files/files/lotelimeji.pdfIn PDF document text
- https://andana.us/files/files/9856602664.pdfIn PDF document text
- http://cerezolorente.com/files/cerezolorente/_repo/file/62266544152.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_off0000f270.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF270 | 18416 bytes |
SHA-256: a453eeac59697880b09081813f966f701cd8ca1d7ef1793229005a3b894c6587 |
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font_01_sfnt_off00012254.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12254 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A6B | 10724 bytes |
SHA-256: 6b0d80502e35127974feb0fd8bc794a3985a8169cb62e2dca1d54e0e92cced5b |
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