MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to external PDF files, which is indicative of a link farm. One prominent URL, 'https://ttraff.com/pify?keyword=excel+sum+function+across+multiple+sheets', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to Excel functions and the malicious URL, suggesting a lure to disguise malicious redirection. The ML classifier also strongly flagged this PDF as malicious.
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=excel+sum+function+across+multiple+sheets
- http://jiweke.coda-pdx.org/uploads/1/3/0/7/130738568/20b95d53bb2fd.pdf
- http://files.creativityandperformance.com/uploads/1/3/0/7/130776594/jopake.pdf
- http://kixapojo.lyonsvet.com/uploads/1/3/1/3/131380213/5272690.pdf
- http://gamofejal.waialaekahalachapel.com/uploads/1/3/0/7/130775403/7b34b.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7875/4199/files/gegetek.pdf
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/john_deere_425_parts.pdf
- https://cdn.shopify.com/s/files/1/0431/3897/3857/files/career_wise_bursary_application_form_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/8251/3570/files/dianadrol_side_effects.pdf
- https://cdn.shopify.com/s/files/1/0428/4468/4454/files/canon_eos_60d_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/8214/5182/files/50463885474.pdf
- https://cdn.shopify.com/s/files/1/0432/2630/0575/files/58874185990.pdf
- https://cdn.shopify.com/s/files/1/0432/1830/5179/files/28357694052.pdf
- https://cdn.shopify.com/s/files/1/0432/9101/7374/files/lunesu.pdf
- https://cdn.shopify.com/s/files/1/0432/5317/0339/files/encyclopedia_of_the_human_brain.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_off00006184.bin2be0bee7d501c64926014e3f454bc0caeffdd01eae2cd7ec27dadf2903ba3b83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6184 | 5280 bytes |
font_01_sfnt_off0000734e.bin3440147e100325216591259d36f301e845c27be4a88a6aebe5f6701bdcc44596 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x734E | 10104 bytes |
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