MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to what appears to be a link farm designed to drive traffic to a malicious redirector. The primary malicious URL identified is https://ttraff.com/wb?keyword=basic%20adjective%20list%20pdf. The document body, though heavily obfuscated, contains references to URLs and appears to be part of a scheme to lure users to external sites.
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/wb?keyword=basic%20adjective%20list%20pdf
- http://files.wymanbrent.com/uploads/1/3/1/4/131437249/5255696.pdf
- http://files.explorestanton.com/uploads/1/3/1/4/131453216/6741733.pdf
- https://cdn.shopify.com/s/files/1/0439/2232/5672/files/fundamentals_of_computer_graphics_4th_edition_github.pdf
- https://cdn.shopify.com/s/files/1/0431/2888/1313/files/blank_resume_format_free_download.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
- https://cdn.shopify.com/s/files/1/0436/3429/4937/files/7477889007.pdf
- https://cdn.shopify.com/s/files/1/0432/6552/3862/files/bipabudobasusapumesel.pdf
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/dutaziwapakoravaj.pdf
- https://cdn.shopify.com/s/files/1/0433/1444/6489/files/wirojirudegid.pdf
- https://cdn.shopify.com/s/files/1/0433/4705/0661/files/weber_grill_repairs.pdf
- https://cdn.shopify.com/s/files/1/0429/2260/6759/files/xebenafugukabotaxitoguwi.pdf
- https://cdn.shopify.com/s/files/1/0437/5976/3617/files/44260477012.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_off00005675.bin738672587ed683ca0e5ad75dc69c65c9b9d0304ff7e9c9e14272a047fc7628e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5675 | 5236 bytes |
font_01_sfnt_off0000685d.binde7d64d13e6d0275ae1832ef16c08ce286fdce63e9e3291c7f89aec3137f0beb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x685D | 9996 bytes |
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