MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document employs a link farm technique, embedding numerous external URLs that masquerade as legitimate content. The primary lure appears to be related to 'American red cross bls instructor test answers', directing users to a specific URL. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a large number of external links, suggesting a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://siouxlandbirthingcenter.org/uploads/1/3/0/5/130539697/130539697.html#american+red+cross+bls+instructor+test+answers PDF link annotation
- http://jordanshealthykitchen.com/uploads/1/3/0/7/130739433/4158934.pdfIn PDF document text
- http://rexbartergroup.com/uploads/1/3/1/4/131410187/jexalabedawita.pdfIn PDF document text
- http://newdaypainting.ca/uploads/1/3/0/6/130639347/563856.pdfIn PDF document text
- http://anchorstoragelc.com/uploads/1/3/0/2/130287882/sofodefedini_komopel.pdfIn PDF document text
- http://carsncoffeecafe.com/uploads/1/3/0/3/130379428/bajezuwofato.pdfIn PDF document text
- http://roderickfludd.com/uploads/1/3/0/9/130969000/kabirevepedax.pdfIn PDF document text
- http://organicbrandsolutions.net/uploads/1/3/0/6/130604780/7817b29e.pdfIn PDF document text
- http://msmstore.com/uploads/1/3/0/2/130271224/3387348.pdfIn PDF document text
- http://kamcoservicesllc.com/uploads/1/3/0/6/130605315/masubufakozol-kepedibefaxara-wutusuzonoj-jubeni.pdfIn PDF document text
- http://naadrywallllc.com/uploads/1/3/0/5/130590582/mebosoxunuz.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
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008f6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F6B | 8504 bytes |
SHA-256: 78eadb6e63ac598c4b177994253ed4ecd6c9aba8bb9c28e3ef450a0386bb10c0 |
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font_01_sfnt_off0000afe2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFE2 | 2600 bytes |
SHA-256: 63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c |
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