MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to multiple compromised WordPress sites. These links likely serve as a lure to redirect users to phishing pages or download further malicious content. No scripts were extracted, but the presence of numerous external links on compromised infrastructure strongly suggests a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b423f2232ca---86547664173.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//2419923187.pdf
- http://nandeestationery.com/userfiles/files/30818989779.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8b66602fa---kujazolomibetir.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/adn6s365egtltd639judfj3058/32995661118.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc63bb1b83---tozuvajaj.pdf
- https://rubenferro.com/userfiles/file/sezonedibum.pdf
- https://clifestyle.net/uploades/userfiles/file/juvotezu.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084160ddba11---88106192211.pdf
- http://dancephoto.ru/userfiles/files/59941621511.pdf
- http://ehomeforeclosure.org/images/file/tivumidaloduforisigob.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0265b71e35---62490557518.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/1b82e4444045afba855bf106fbaa1704/vibawexibokeb.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ada94760158---79297479030.pdf
- https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/74fd2c10ea70b12281a8d3495f5f5bac/moxupusivezisatisi.pdf
- http://emannsltd.com/userfiles/vofalasoradomiwige.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804135ad759---55117456899.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/fd1784a96c791bdc0281438f216ca0ed/30261026511.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa512fd974e---laselikujoz.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc5db7669b---63837226881.pdf
- http://anhuizpyy.com/upload_fck/file/2021-4-30/20210430201101382520.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=daily+life+examples+based+on+quadratic+equations
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010d89.bin7ec1958af01f7fa98ca861a336a1828113b9e0e0afc50f68a75adc4a54a063f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D89 | 17780 bytes |
font_01_sfnt_off00013c9a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C9A | 16792 bytes |
font_02_sfnt_off000154b1.bin2082e9b1269d7a9d26fc06c22ed0b7e4c0b0780a9ab69858783791e5939a1ce5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154B1 | 11384 bytes |
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