MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a reading practice test. The ML classifier strongly flagged this PDF as malicious. The document body, though partially corrupted, contains the URL and text suggesting a lure for educational content. The presence of numerous external links, many pointing to Shopify, suggests a link farm used to obscure the malicious redirector.
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=reading+practice+test+with+answers
- http://xoxumuv.abaofwisconsin.org/uploads/1/3/1/1/131163744/rupivosejosigololo.pdf
- http://files.etudist.com/uploads/1/3/1/4/131452840/a5353ab.pdf
- http://files.mountzionpbchurch.org/uploads/1/3/1/6/131607093/2087433.pdf
- https://cdn.shopify.com/s/files/1/0436/1479/7981/files/91745035143.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7962/files/49045925421.pdf
- https://cdn.shopify.com/s/files/1/0431/4375/7992/files/application_letter_for_fresh_graduate.pdf
- https://cdn.shopify.com/s/files/1/0430/1560/2337/files/zekolevetanuvokokajizafa.pdf
- https://cdn.shopify.com/s/files/1/0430/9345/9093/files/likuredetiximin.pdf
- https://cdn.shopify.com/s/files/1/0434/7861/4168/files/after_livro_4_tumblr.pdf
- https://cdn.shopify.com/s/files/1/0428/1237/5207/files/korurebixosodoxunafo.pdf
- https://cdn.shopify.com/s/files/1/0434/7035/6632/files/mercedes_benz_glc_price_list.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xokuwunojuvilil.pdf
- https://cdn.shopify.com/s/files/1/0429/0890/9734/files/purpose_driven_life_summary.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_off000082ef.binee396a1b26f75420636a6af052695e668e28d0629366625c321d1e18ee6581f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82EF | 5400 bytes |
font_01_sfnt_off0000955a.bin507d77e7cc7efa3ec906c0ddc9b74107359803f5d98b63e5d1ca4d690de7e66c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x955A | 10432 bytes |
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