MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, includes text suggesting it is an 'air pollution report' and contains the malicious URL, indicating a lure for users. The presence of many external PDF links, some pointing to benign Shopify domains and others to unknown domains, suggests a link farm or SEO poisoning attempt to distribute malicious 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=ho+chi+minh+city+air+pollution+report
- http://files.artworkcroasdaile.com/uploads/1/3/0/9/130969306/2299099.pdf
- http://files.sandeebrown.com/uploads/1/3/0/8/130874075/nokajirafivulis.pdf
- http://files.sb-defense-lawyer.com/uploads/1/3/0/7/130775205/183164.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/9690/6659/files/bauhaus_school_of_architecture.pdf
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/vusugaluvodejimusufajod.pdf
- https://cdn.shopify.com/s/files/1/0437/0238/6856/files/shark_steam_pocket_mop_s3501.pdf
- https://cdn.shopify.com/s/files/1/0431/4136/5922/files/36839279466.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdf
- https://cdn.shopify.com/s/files/1/0431/1754/3588/files/73783531275.pdf
- https://cdn.shopify.com/s/files/1/0435/3084/6363/files/ribekedilabape.pdf
- https://cdn.shopify.com/s/files/1/0432/4913/9880/files/performance_parts_for_ram_2500.pdf
- https://cdn.shopify.com/s/files/1/0439/0731/7912/files/45412550742.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_off000061bf.bin11f1dabde4e0bf3b99dd35ed0f76fd22dda9a3869be43a375f7f6d92080602fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61BF | 5060 bytes |
font_01_sfnt_off000072c1.bin209fd7b212c5bc84f29decf07726e8187b5ca9782c6da6c95130ffefc08af3b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72C1 | 10300 bytes |
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