MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to distribute malicious content. The presence of a 'download button' heuristic further supports the intent to trick the user into downloading a payload. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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://drafthe.ru/uplcv?utm_term=loan+application+form+sample+pdf PDF link annotation
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/2ba7d3a6d9f81a7d1468c6a4827131c2/retelexosanebuvapi.pdfIn PDF document text
- http://worthingtonpark101.com/userimages/tovizopowumu.pdfIn PDF document text
- http://greece-ex.com/images/blog//file/49555473751.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f500f701ff---puwudavigujamuri.pdfIn PDF document text
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/13ae4c41b5d65823c80fc898d516df14/268588421.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/58bad233aae608ae719fcbbdb2626ef0/2613681135.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072434848252---fexuxufudasevafavoponabet.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2877322ea---3782636358.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6811c06d8e---kexutarorumiposoje.pdfIn PDF document text
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/69f616fc4ab7037dc892fe8221348154/82632774697.pdfIn PDF document text
- http://brlairport.com/images/file/58527203157.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/0un2cpsgt784hji072hlmnktd1/63458025386.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/7bd655e38edacc234224fe7e5477aba2/viwikebaparodi.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/743cb488232d62467c537a83bc430a5a/7740195808.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16098edb25f217---dusarelufefib.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/cfdd533982cfca8d1169d9a03f58c0d3/valamavoninisuluxopoxuv.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f07e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07E | 5240 bytes |
SHA-256: 4a1000a01ae4e3ccdce076fafd776be68f16ce98d22f04649776bb6aec4cddb0 |
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font_01_sfnt_off00010242.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10242 | 11060 bytes |
SHA-256: b4c1d168ae911798e9df9fcb0a05b72e61fbd1f4b9c005c37533e3a4a3ed3269 |
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