MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'biochemistry test 1 review sheet'. The presence of multiple external links, including a redirector, suggests an attempt to drive traffic to potentially malicious sites, likely for phishing or malware distribution.
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.cc/pify?keyword=biochemistry+test+1+review+sheet
- http://files.world-akihito.com/uploads/1/3/0/7/130776254/lidunu-tumikobube-fejow.pdf
- http://files.capitalkeyclub.org/uploads/1/3/1/3/131384771/5e51e2a1cdc.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/7693/5070/files/commandos_2_free_full_version_pc.pdf
- https://cdn.shopify.com/s/files/1/0435/4949/1359/files/4810006836.pdf
- https://cdn.shopify.com/s/files/1/0444/2108/7398/files/essentials_of_human_anatomy_and_physiology_8th_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/3497/6157/files/niraraladopej.pdf
- https://cdn.shopify.com/s/files/1/0435/5312/8612/files/cuneiform_alphabet_copy_paste.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/60282722452.pdf
- https://cdn.shopify.com/s/files/1/0434/8982/0838/files/texas_railroad_commission_gis.pdf
- https://cdn.shopify.com/s/files/1/0433/7618/1400/files/kiduve.pdf
- https://cdn.shopify.com/s/files/1/0434/4909/0200/files/arborist_certification_study_guide.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006578.bin28f66d433bf0aeb4ede702473f6bd6dc6d26be1af78891f48e5a2abbd5c10a9d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6578 | 5152 bytes |
font_01_sfnt_off000076f6.bin168218e639d64dd35000d8cf7516f8b1226a69b310599bc7b152cbda9b992b13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76F6 | 9892 bytes |
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