MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. While no scripts were explicitly extracted, the nature of the links and the overall detection profile points towards a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://biosystech.com/pdsFck/file/97404534467.pdf In PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/pf88cqt9huh1e1e89qltrmmma1/bokilare.pdfIn PDF document text
- http://bscartridge.com/pic/kesevali.pdfIn PDF document text
- https://marosme.ro/hirek/file/diparero.pdfIn PDF document text
- http://dieta-plus.pl/userfiles/file/gabizulusakabu.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/1ce5e8985d74d506bec7f41b005fe041/1482279774.pdfIn PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b6c73d4c6---10679628727.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/p0v301fcknv3ctlrbbemec0lti/vulokezunifizu.pdfIn PDF document text
- http://wccflooring.com/userfiles/files/tifilabudofirexomeluk.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5ab57053a---24090513862.pdfIn PDF document text
- https://sesconbs.org.br/ckfinder/userfiles/files/99317447326.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ac9752f7b9---29929325982.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d900b0f1bb---vuzutelipodon.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/d760b2bae9262e048e517e8144617528/59307286785.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073949ca82b0---6939812726.pdfIn PDF document text
- http://linker-apps.com/files/26770605174.pdfIn PDF document text
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609030819aae2---96093279110.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3a1f1a823---7445247349.pdfIn PDF document text
- http://abwvictory.com/uploads/files/50637793840.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/retadagofedoxe.pdfIn PDF document text
- https://tipresentoio.it/images/file/48813644292.pdfIn PDF document text
- http://sns.hu/_user/file/19072757190.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/fojube.pdfIn PDF document text
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/26a5e9c307f30cbd9a4814036c3a510c/pumiboxisexejakuwoxo.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608efde559a68---zorudodujaburod.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=birthday+girl+pdf+penelope+douglasPDF 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_off0000ddc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f5d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D8 | 17480 bytes |
SHA-256: 63842c8d3b42e19398124c8ebaa1654cbf5a3b57c5192ffcebe715291ed3b94e |
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font_02_sfnt_off0001225f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1225F | 11044 bytes |
SHA-256: 496881822bec09d236c96f47570a1acecd2b54d99998a0f0c1c2c1e172d1af86 |
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