MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious, and the heuristic firings confirm the presence of external URI links and a link farm pattern. No scripts were extracted from this sample, but the overall structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 5
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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://crysiq.ru/uplcv?utm_term=how+to+see+other+files+on+android PDF link annotation
- http://maidichike.com/upload/files/72617782141.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/jiforubir.pdfIn PDF document text
- http://geodez.com/pliki/file/noganodeloda.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/8c3f28ad24f4d857a8fbbfa1b238365f/ruwatekiw.pdfIn PDF document text
- http://sinoorchids.com/image/file/zexepopufimirewikiwapada.pdfIn PDF document text
- http://computer-rudolstadt.de/upload/file/mizugolodaf.pdfIn PDF document text
- https://adurucui.com/ckfinder/files/28196883519.pdfIn PDF document text
- https://cmf8.ir/data/file/549693060.pdfIn PDF document text
- http://assessmentinsight.com/ckfinder/userfiles/files/xogumegukuzarikupevebe.pdfIn PDF document text
- http://cee1968.com/ckfinder/userfiles/files/59378442327.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/80735641742.pdfIn PDF document text
- http://sb555.com/photo/file/zudosetefi.pdfIn PDF document text
- http://niktid.ru/userfiles/file/42499689950.pdfIn PDF document text
- http://www.solarwindependence.com/ckfinder/userfiles/files/37757974977.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/33637606680.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613530671a36f---31118502675.pdfIn PDF document text
- http://huspanda.com/data/ckfinder/files/zirakemagi.pdfIn PDF document text
- http://thietbimaugiao.vn/Images_upload/files/fopuwus.pdfIn PDF document text
- https://tch.lu/files/files/72747132265.pdfIn PDF document text
- http://droprint.my/home/ququ4923/public_html/userfiles/file/6907557169.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/fezurupowesapedibu.pdfIn PDF document text
- https://nffcd.org/userfiles/files/wezozavovobitusika.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f265dc46a4---1653623621.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_off0000c867.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC867 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e07e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07E | 10528 bytes |
SHA-256: 08130d14e921e3cd00a8e6922f83fe93f7ff919f6626f9e0653fb093ad5d0ba5 |
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font_02_sfnt_off0000f865.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF865 | 17304 bytes |
SHA-256: 7f2aafa832b662d0f2ff38a4b010a06c48010eb630855670bfc7e71ae3720261 |
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