MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple embedded URLs, some of which are flagged as link farms on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment, likely leading to further malicious content or exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9611
Heuristics 5
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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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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://web.liderpapel.com/sites/default/files/webform/36759883892.pdf In PDF document text
- http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/lomaxitafuvutatu.pdfIn PDF document text
- https://www.dgs-interparts.be/sites/default/files/xufatonapa.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/zolevijovexoneda.pdfIn PDF document text
- https://aboss.by/sites/default/files/webform/32639212941.pdfIn PDF document text
- https://grossenbacher.co.nz/en/system/files/avoidance-training-certificates/xetomaroronep.pdfIn PDF document text
- https://www.mainephilanthropy.org/sites/default/files/guvobirewuge.pdfIn PDF document text
- https://www.afscme65.org/system/files/webform/rerezuduzolorefa.pdfIn PDF document text
- https://architecturaldesigninc.com/sites/default/files/56675633315.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=toto+africa+sheet+music+pdfPDF link annotation
- https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/50075528518.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/bejugejotofetuxiw.pdfIn 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_off0000c967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC967 | 5312 bytes |
SHA-256: 87514b60241dd7879e460c960d777c674e3a02fbab3f0a66381e9fb055ea120b |
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font_01_sfnt_off0000db4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB4E | 10776 bytes |
SHA-256: cd9da880083fec68dc6d1737f048c53cf7ffc4af8d6400705fc659d809374e8d |
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