MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which, https://ttraff.com/wix?keyword=intervals+of+continuity+worksheet, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to academic content, suggesting a lure. The presence of numerous external PDF links, many pointing to static.usrfiles.com, indicates a link farm strategy, likely to obscure the malicious redirector. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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/wix?keyword=intervals+of+continuity+worksheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/6c98bc_88bf3231dbad4d339b5e3f35bc047753.pdf
- https://static.usrfiles.com/ugd/086daf_c14193c34eca405b816a2e4048a0a880.pdf
- https://static.usrfiles.com/ugd/b8c837_64ccf810d82c4e95b00fd7b0f7cf879f.pdf
- https://static.usrfiles.com/ugd/b8c837_d9cca24ff3784981981835209f8035c0.pdf
- https://cdn.shopify.com/s/files/1/0430/8962/5250/files/97539454434.pdf
- https://cdn.shopify.com/s/files/1/0434/0085/5706/files/19000324641.pdf
- https://cdn.shopify.com/s/files/1/0437/2342/3912/files/aligarh_movement_essay.pdf
- https://cdn.shopify.com/s/files/1/0446/6016/2713/files/sokibagokureruzaj.pdf
- https://cdn.shopify.com/s/files/1/0434/1760/0165/files/todadafilifedogarifolume.pdf
- https://static.usrfiles.com/ugd/8ba634_445fe52e1c9a46d19d3fb5f1bdf0cb2a.pdf
- https://static.usrfiles.com/ugd/6f7357_afd50e948ef84bf09fe2700c6da159fa.pdf
- https://cdn.shopify.com/s/files/1/0432/1745/3211/files/aunt_minnie_radiology_cases.pdf
- https://cdn.shopify.com/s/files/1/0437/8175/0941/files/56815859589.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_off00005e0a.bine231bc81388682d6607ce2d4d3e1c848fd94036f79d2e0784bc57d6575b36adc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E0A | 5224 bytes |
font_01_sfnt_off00006fe7.bin3cfbd5176168748dcdaf61e29f5414b5cf078869e7a38f11e162488cf2ef31e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FE7 | 10364 bytes |
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