MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier and PDF heuristics indicate this document is malicious. It contains numerous embedded URLs, suggesting an attempt to redirect the user to potentially harmful external sites. The presence of 'wkhtmltopdf' in the metadata and the structure of the URLs point towards a link farm or phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.8947
Heuristics 4
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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://ambrose.edu/sites/default/files/webform/42416127327.pdf In PDF document text
- https://ambrose.edu/sites/default/files/webform/zateguzafafidefezibexe.pdfIn PDF document text
- https://architecturaldesigninc.com/sites/default/files/sujuxot.pdfIn PDF document text
- https://www.mainephilanthropy.org/sites/default/files/5296457674.pdfIn PDF document text
- http://www.birdlifebotswana.org.bw/sites/default/files/webform/sightings-sketches/43600748611.pdfIn PDF document text
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/40110328039.pdfIn PDF document text
- http://oaklandchildcare.org/sites/default/files/webform/70037852461.pdfIn PDF document text
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/56601188302.pdfIn PDF document text
- https://www.osgeurope.com/sites/osg-corporate.dev/files/webform/27880179426.pdfIn PDF document text
- https://www.enwidth.com/sites/default/files/webform/resumes/lerudaxalopavowurugepoviw.pdfIn PDF document text
- https://www.mothercare.ro/sites/default/files/webform/resumes/xigidaz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=alcoholes+de+azucar+pdfPDF link annotation
- https://community.princeton.edu/system/files/webform/40347257249.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5B9 | 4932 bytes |
SHA-256: 29d485535a939780b25becfcb75f909ab881cf6eedb0dd984a5cfc63edac4cd1 |
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font_01_sfnt_off0000f68e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF68E | 11952 bytes |
SHA-256: 02f77968e908024a53ee4a872dd1667e58878938ac3a48da58dec7dc4ecfe7b9 |
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font_02_sfnt_off00011d6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6C | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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