MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with the primary link directing to a known malicious redirector. The document body and embedded links suggest a lure to download a 'biological science' PDF, which is a common tactic for distributing malware. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=biological+science+freeman+pdf+free+download
- http://files.festivalontheave.org/uploads/1/3/2/7/132740234/suvavasiperegakupato.pdf
- http://files.risehairinc.com/uploads/1/3/0/7/130738845/5caaba53c.pdf
- http://files.andreabrewtonphotography.com/uploads/1/3/2/8/132814476/e1438a.pdf
- http://files.leonkew.com/uploads/1/3/0/7/130775659/71bdc2c59d.pdf
- https://cdn.shopify.com/s/files/1/0432/3108/4708/files/kikijoterososa.pdf
- https://cdn.shopify.com/s/files/1/0432/7194/6398/files/japejibup.pdf
- https://cdn.shopify.com/s/files/1/0433/4521/5656/files/zoviguget.pdf
- https://cdn.shopify.com/s/files/1/0432/0873/6928/files/42273017375.pdf
- https://cdn.shopify.com/s/files/1/0431/9186/1410/files/99094437441.pdf
- https://cdn.shopify.com/s/files/1/0438/8922/9979/files/sazuz.pdf
- https://cdn.shopify.com/s/files/1/0434/7094/6456/files/85156813294.pdf
- https://cdn.shopify.com/s/files/1/0427/8570/2054/files/15819638416.pdf
- https://cdn.shopify.com/s/files/1/0435/9431/7981/files/if_you_only_knew_shinedown.pdf
- https://cdn.shopify.com/s/files/1/0434/4299/5352/files/87197239230.pdf
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/walinazavivuzuzil.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_off0000503c.binb901f06a8902f96c1cd2e4dd8b83f5e964ba6a4cd9dfa0f7dddad1f9a8298eee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x503C | 5616 bytes |
font_01_sfnt_off00006358.bincd45a1da896a3b01bf7304c19af844a3650faeedb638dd603b813f8c613b7e13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6358 | 10588 bytes |
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