MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to a 'biology syllabus pdf download' and the malicious URL. This suggests a phishing or redirection attack aiming to lead the user to harmful content.
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/pify?keyword=biology+syllabus+pdf+download
- http://files.adamkaszycki.com/uploads/1/3/0/7/130776483/195181.pdf
- http://files.faithcheraw.org/uploads/1/3/1/4/131406649/6005751.pdf
- http://files.truenorthwelcomehome.com/uploads/1/3/1/3/131398323/jekolu_pijunaxak_xinebijarat.pdf
- https://cdn.shopify.com/s/files/1/0430/0141/3785/files/lanozi.pdf
- https://cdn.shopify.com/s/files/1/0434/6845/6086/files/89782479277.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdf
- https://cdn.shopify.com/s/files/1/0434/7209/3336/files/gowajevikuvufiteberudu.pdf
- https://cdn.shopify.com/s/files/1/0429/9145/2314/files/pugasu.pdf
- https://cdn.shopify.com/s/files/1/0434/3031/4133/files/2216934420.pdf
- https://cdn.shopify.com/s/files/1/0429/2050/9596/files/7354442832.pdf
- https://cdn.shopify.com/s/files/1/0430/6829/3287/files/fojaniwix.pdf
- https://cdn.shopify.com/s/files/1/0432/9956/9832/files/75763017094.pdf
- https://cdn.shopify.com/s/files/1/0427/4677/3660/files/geforce_gtx_860m.pdf
- https://cdn.shopify.com/s/files/1/0431/6961/1935/files/moxurajoboxek.pdf
- https://cdn.shopify.com/s/files/1/0440/5959/0806/files/gauhati_university_bsc_botany_syllabus.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e5b.binfe0bc01254b6fcee28c83a356b3de5f93afa6145d5daa77c73dee34dd04ab8d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E5B | 5496 bytes |
font_01_sfnt_off0000813d.binc663455e5f6b997c3ebac36649e33877f5a27bd5e040669b57e2cbd863252cb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x813D | 14124 bytes |
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