MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious URL, disguised as educational material. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the primary redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a malicious site, likely for further exploitation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://ttraff.com/wb?keyword=nelson%20grade%2012%20biology%20textbook%20pdf%20answers
- http://files.svplab.com/uploads/1/3/0/7/130739509/2c4fb5906.pdf
- http://files.makingwhatiwant.com/uploads/1/3/0/9/130969373/gumivixus.pdf
- http://files.azsmashersbaseballandsoftball.net/uploads/1/3/1/6/131606630/dazavib_rubefux_dekebokoto_zegijibixezuvuf.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/7298/8071/files/8245645466.pdf
- https://cdn.shopify.com/s/files/1/0431/8999/3621/files/uc_davis_ship_waiver.pdf
- https://cdn.shopify.com/s/files/1/0434/8493/8402/files/84860763629.pdf
- https://cdn.shopify.com/s/files/1/0441/0081/2952/files/grade_6_math_worksheets_ontario.pdf
- https://cdn.shopify.com/s/files/1/0436/4982/6969/files/16620077739.pdf
- https://cdn.shopify.com/s/files/1/0434/8434/8569/files/ielts_speaking_and_writing_corner.pdf
- https://cdn.shopify.com/s/files/1/0431/5637/3659/files/50068644811.pdf
- https://cdn.shopify.com/s/files/1/0433/0392/7973/files/98549505834.pdf
- https://cdn.shopify.com/s/files/1/0433/6674/4216/files/97495433690.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006499.bin044f4123333be815bcfebadb28dd27d82a22ab9badfd5a8e8750e449cb1a0899 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6499 | 5828 bytes |
font_01_sfnt_off0000789f.bin4b6766ae8d6fe07f8c310a5d4f85c970c21a11d5bc8ab671c949517ecbacc24b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x789F | 2128 bytes |
font_02_sfnt_off000081d4.binb67571c80c4e87800403eeb018efda1e55bcccb3dde1d8f18109da085f5024c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81D4 | 14160 bytes |
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