MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a known malicious URL, disguised as a grammar test for IELTS. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or traffic redirection. No scripts were extracted, but the primary malicious action is the redirection to a harmful URL.
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/wb?keyword=grammar%20test%20for%20ielts%20pdf
- http://files.unalomesoapscandles.net/uploads/1/3/1/3/131380687/d41c6.pdf
- http://files.hijackingfieldtrips.com/uploads/1/3/2/7/132740564/gimobuf.pdf
- https://cdn.shopify.com/s/files/1/0448/2298/6914/files/8014101717.pdf
- https://cdn.shopify.com/s/files/1/0440/6116/3670/files/great_man_theory_definition.pdf
- https://cdn.shopify.com/s/files/1/0431/5355/5624/files/gatuxu.pdf
- https://cdn.shopify.com/s/files/1/0434/6481/8838/files/beware_the_dog_roald_dahl.pdf
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/28896068472.pdf
- https://cdn.shopify.com/s/files/1/0433/3672/8735/files/revelation_online_swordmage_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/3410/7286/files/megorufoxewejujojotavaw.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
- https://cdn.shopify.com/s/files/1/0430/8962/5250/files/97539454434.pdf
- https://cdn.shopify.com/s/files/1/0435/3998/8648/files/los_dioses_en_los_cdices_mexicanos_del_grupo_borgia.pdf
- https://cdn.shopify.com/s/files/1/0434/9827/4978/files/supply_chain_management_5th_edition_chopra.pdf
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/lolifuwojibanu.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_off0000777d.bin0bf5b4d51bb750c895d1ec85d274c1a8f6bbd12091d30c5d5515ce1efdd828e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x777D | 5220 bytes |
font_01_sfnt_off00008927.bincde7ab270b89267a445297c3e5a185b397108c8baac187e4291c6b6f960a53f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8927 | 10316 bytes |
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