MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/wb?keyword=psat/nmsqt%20testing%20manual as pointing to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting an attempt to manipulate search engine results or distribute content widely. The ML classifier also strongly indicated maliciousness.
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/wb?keyword=psat/nmsqt%20testing%20manual
- http://tiwanul.williamjensenwrites.com/uploads/1/3/1/3/131380429/tidup_dugaboruwinikew_wokotowifaz.pdf
- http://files.northwoodshaman.com/uploads/1/3/1/8/131857115/3ae3c70.pdf
- http://vevele.noondayfarm.org/uploads/1/3/1/4/131453247/6f91c406680.pdf
- http://files.markdfoxamerrawart.com/uploads/1/3/0/7/130739542/d675c3a2f.pdf
- https://cdn.shopify.com/s/files/1/0430/1848/5923/files/72317654460.pdf
- https://cdn.shopify.com/s/files/1/0431/5545/6149/files/quantum_chemistry_and_spectroscopy_engel.pdf
- https://cdn.shopify.com/s/files/1/0428/5969/2198/files/regex_cheat_sheet_javascript.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pufabupenidobuxix.pdf
- https://cdn.shopify.com/s/files/1/0431/1180/9190/files/binagazutupataketugegam.pdf
- https://cdn.shopify.com/s/files/1/0432/5149/9170/files/ribepagubi.pdf
- https://cdn.shopify.com/s/files/1/0431/2308/1373/files/bemadurusajasow.pdf
- https://cdn.shopify.com/s/files/1/0431/9356/5342/files/saginaw_bay_weather.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdf
- https://cdn.shopify.com/s/files/1/0429/5540/7511/files/54339718973.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/20532153239.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_off0000679a.binfdc1178de3b1f59bda6e6f044523b434e3a196376c1194b0e257a9220ef44cbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x679A | 5072 bytes |
font_01_sfnt_off000078ce.bin96e0a66e9139e7abb6951a4145bcdbf167d7f820c80501932b80cf9376994924 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78CE | 10272 bytes |
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