MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, likely to redirect users to malicious content or phishing sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting a tactic to distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607569b28be07---64759054485.pdf In PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16108e9e7b54a9---83436923434.pdfIn PDF document text
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e4d6729703a27dfa134c59a596ad07db/43431189546.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecd4378492---modileregapo.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/8ia5o68vad0301m6b6872oevnh/55641167294.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/5e40fa892278712c670bc8e6dbc701d4/bosexolijididelob.pdfIn PDF document text
- http://marsalanoleggio.it/userfiles/files/99070094635.pdfIn PDF document text
- http://caf-ljubljana.si/docs/48006407868.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/ldedimc1oh0gvv58mgt0c6si06/45181108443.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/d4207a36399852ed618ce16cdee63292/79251399953.pdfIn PDF document text
- http://eugensa.lt/app/webroot/uploads/userfiles/files/mibewa.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609853928d54c---58709655282.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/karer4q2q3k28jmqmspnu5c552/wefakiwif.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/e46e9169e66798ac7d8a7db3c6cb6d29/zofebigorevufodog.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/b8aebac2bc819e8fc7ba4350c53e3e3a/bibajetinuwivez.pdfIn PDF document text
- https://uniqrelation.com/userfiles/file/70003027630.pdfIn PDF document text
- https://elperrocallejero.info/ckfinder/files/tagadisifemesajokegupef.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba04650e807---6375795341.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071578946e4a---wigazajuwenujerajewin.pdfIn PDF document text
- http://littlepearlspublishing.in/data/eimages/file/47923934587.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/pexadazijam.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609117c598ca9---winewanuk.pdfIn PDF document text
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/95cb27c9eaa6092a6d50aac9e7092c65/siwafawikibujo.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/com7mbl8432kdd4onlbu98krvn/44831541609.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=can+you+bring+a+backpack+as+a+personal+item+on+allegiantPDF 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_off000110e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110E8 | 17392 bytes |
SHA-256: 6254390ac92fe9508b1ada073dd3ca71f2e01ece3b3aaf198e4ac18d188fa398 |
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font_01_sfnt_off00013e95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E95 | 11196 bytes |
SHA-256: fce945d563bdc342a976b6a34c252616bd78116ea141579b95656c4ce12cd886 |
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font_02_sfnt_off000158a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x158A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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