MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to distribute malware or redirect users to phishing pages. The document body, though heavily obfuscated, appears to be a lure related to interview questions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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 https://catamma.ru/uplcv?utm_term=hobbies+for+interview+question+and+answer PDF link annotation
- http://ahxxzx.com/userfiles/202105/file/foxotobexetemo.pdfIn PDF document text
- https://afayl.com/userfiles/file/93252487412.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d540b8b0c---87541968697.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a976c3a0cdc---20488509917.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/56553351a27ecfea72e74998cbfe5246/wesaruzadarukavilov.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160735b0ae0223---fomaliremobak.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/81c618f3adc2b67c59b060c788063b3b/36154242541.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094781438132---2343139151.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/mkh58gt0q2f3iv48i7jn3t0cjn/zufubenodipurawo.pdfIn PDF document text
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b28e29a2eb---42681871084.pdfIn PDF document text
- http://beiks.info/public/file/wavafowite.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/nunupifebarejivowig.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770d60e8f3e---supikerutirefo.pdfIn PDF document text
- http://anatolianlgs.com/userfiles/file/95548956698.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16087455c82540---zipado.pdfIn PDF document text
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/fd731cfd246ff508abb9ed95f0d5a260/66196199084.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/8a4adf15fc498124bfe3def237abf21b/49299705439.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED19 | 5248 bytes |
SHA-256: f689fb2c1f982dc19ee8e4571610da78f7eb9e42653bea4225f0bcdc3a4e3c3b |
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font_01_sfnt_off0000ff08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF08 | 10564 bytes |
SHA-256: b4f114637233776b61e17cdaa7c6fb506c6e9f61fa101cf89bbdcc2b7e196b2b |
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