MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as a guide for spreadsheet calculations. This redirector likely leads to a malicious payload. The document body, though heavily obfuscated, contains the target URL and other URLs pointing to PDF files hosted on Shopify, suggesting a link farm or content-luring tactic. The ML classifier 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.cc/wix?keyword=how+to+use+spreadsheet+for+calculations
- https://cdn.shopify.com/s/files/1/0431/8350/5570/files/multivariate_analysis.pdf
- https://cdn.shopify.com/s/files/1/0437/3364/7525/files/smd_capacitor_code_calculator.pdf
- https://cdn.shopify.com/s/files/1/0430/1848/5923/files/saint_row_2_cheats_codes_ps3.pdf
- https://cdn.shopify.com/s/files/1/0436/6237/7113/files/66041234513.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0835/files/browne_v_dunn.pdf
- https://static.usrfiles.com/ugd/b8bbd7_2b53f12735b74f8493da4be13d5a3ff2.pdf
- https://static.usrfiles.com/ugd/2f8cea_1459479898f84b049af3db94d5acd7c1.pdf
- https://static.usrfiles.com/ugd/b58d21_468e46d83d4a4a66a52abf1f5a0a0427.pdf
- https://cdn.shopify.com/s/files/1/0427/9622/0572/files/23839610394.pdf
- https://cdn.shopify.com/s/files/1/0429/1733/1100/files/cells_involved_in_immune_system.pdf
- https://cdn.shopify.com/s/files/1/0437/9744/6818/files/search_inside_a_document.pdf
- https://cdn.shopify.com/s/files/1/0433/5481/6667/files/how_many_seconds_in_an_year.pdf
- https://cdn.shopify.com/s/files/1/0431/7764/0093/files/fobakibe.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_off00005e87.bin0354973245d55af8a09f450c0ad718ca1dbb092d2920ff533d5c5d2e0ce608d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E87 | 5296 bytes |
font_01_sfnt_off00007093.bin95c445d2bf81718e008df8674f5f0c03b76a24f9535e819a5fb49ef662677ae3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7093 | 9832 bytes |
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