MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wix?keyword=library+scavenger+hunt+worksheet'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on static.usrfiles.com, suggesting a link farm or redirection attempt. 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.cc/wix?keyword=library+scavenger+hunt+worksheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_0430d59fc6b84d73877ca041e394734c.pdf
- https://static.usrfiles.com/ugd/0e9fc2_87e62a57f6e34f3888f51bd02ab21b8b.pdf
- https://static.usrfiles.com/ugd/b8c837_8c683f470e8d4d2c9afb00afbd6570fe.pdf
- https://static.usrfiles.com/ugd/b8c837_40d955db258743aca8a77424d677199c.pdf
- https://static.usrfiles.com/ugd/a31856_7c180b8f51544c369d5b3897a1ae8b82.pdf
- https://cdn.shopify.com/s/files/1/0429/1470/9670/files/83705132858.pdf
- https://cdn.shopify.com/s/files/1/0431/7147/9709/files/gogovedone.pdf
- https://cdn.shopify.com/s/files/1/0429/9603/9839/files/small_file_to_word_converter.pdf
- https://cdn.shopify.com/s/files/1/0430/8333/3799/files/bosiwonibaxupukel.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5276/files/4775252016.pdf
- https://cdn.shopify.com/s/files/1/0429/1490/6279/files/instructional_design_training_plan_template.pdf
- https://cdn.shopify.com/s/files/1/0430/3552/5282/files/basics_of_computer_applications.pdf
- https://cdn.shopify.com/s/files/1/0429/1300/5724/files/gudup.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71895612735.pdf
- https://cdn.shopify.com/s/files/1/0449/8151/8494/files/integral_calculus_book.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_off0000561b.bin17e4134ac7daba2c6f695832bd2b9f5341a387fcdb75ba2e2144d2ccfd90dd95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x561B | 5428 bytes |
font_01_sfnt_off000068a4.bin0756a4213fd0f791bf4af30f82798d7cf6111a365667bc820e01ad08a3c0d1c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68A4 | 10552 bytes |
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