MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier. Heuristics indicate it functions as a link farm pointing to compromised WordPress sites, likely to host or distribute a password-protected archive. The presence of embedded URLs and the 'Password-protected archive handoff' heuristic strongly suggest a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/28f28da613d370bf45e487d68f0ff5a4/15509361281.pdf In PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949fb4ea451---renajuro.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd2983414f---serabekaxejozubanamu.pdfIn PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/6a55529e02338569ec20b5d9aca46d4b/69378590824.pdfIn PDF document text
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/u3c6v4ioihnp1otjtjq8qe2eht/21115871839.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/ce3f1c9b37e09e041ea9230f99234fa5/29601057201.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160aa68bd1b72b---11218147405.pdfIn PDF document text
- http://jfkanacon.org/data/userfiles/files/66246948221.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb478b0d6c---lakata.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/41611637293.pdfIn PDF document text
- https://essaidafm.com/uploads/FCK_files/file/61933612258.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/3f5c2190fdcaa26e9bc7875015f94e91/tizixubaretazejuroroguj.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/oj0q4dbmb2qme60674qpg1d7f9/21803572626.pdfIn PDF document text
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/dlu9esc1agrkkila9pt5q6jk31/falowosujidogupixubup.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607104b90640c---83840007127.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/6pq4k1j4cqmott4bu9ev3srh06/16019489865.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/59031aae350a605fdbf120193a603213/67844425281.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/8221018863.pdfIn PDF document text
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/34487344267.pdfIn PDF document text
- https://la-klamm.org/userfiles/file/weraxoxiwamabukijubek.pdfIn PDF document text
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b034002f334---79832465496.pdfPDF link annotation
- http://bethanybaptistcolumbus.org/clients/75549/File/58186743394.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/7e57e8c01de128cc1aa7b448c2ba9ba4/98895163014.pdfIn PDF document text
- https://nevisnews.com/userfiles/71915684105.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/rufidokoru.pdfIn PDF document text
- https://firsatpin.com/calisma2/files/uploads/75600374322.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=what+do+the+keys+mean+in+secret+conversationsPDF link annotation
- 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_off0000f6fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6FD | 17172 bytes |
SHA-256: b2edeeb4a981f19fad44dc390cbebcef4289f7cbd96a90d031c1345d484397dd |
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font_01_sfnt_off000123ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013bc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BC3 | 10856 bytes |
SHA-256: b00075bf742540cbecf9a39f60774347b59f7f461e17a122d36a6b3a906725e4 |
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