MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host further malicious content or phishing pages. The document body and embedded links suggest a lure related to educational materials, specifically a worksheet, to trick users into clicking the malicious URL. The presence of numerous links to Shopify-hosted PDFs, while many are benign, forms part of a link farm strategy to improve SEO for the malicious redirector.
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/pify?keyword=evaporation+and+condensation+worksheet+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/8670/7876/files/49579778610.pdf
- https://cdn.shopify.com/s/files/1/0438/2552/8989/files/lopaze.pdf
- https://cdn.shopify.com/s/files/1/0437/2784/7576/files/simplification_and_approximation_questions_download.pdf
- https://cdn.shopify.com/s/files/1/0437/0271/4536/files/61117212564.pdf
- https://cdn.shopify.com/s/files/1/0428/5733/2895/files/merowegivinomarelugef.pdf
- https://cdn.shopify.com/s/files/1/0433/1828/0357/files/nerujizukivexuw.pdf
- https://cdn.shopify.com/s/files/1/0428/6945/7063/files/anterior_deltoid_exercises.pdf
- https://cdn.shopify.com/s/files/1/0440/0395/0742/files/ielts_listening_test_tips.pdf
- https://static.usrfiles.com/ugd/c0b427_d28f1e97684b4970aa9ac6945f1535c0.pdf
- https://static.usrfiles.com/ugd/b8c837_0db4528d84004a4e87e8fae2cc399191.pdf
- https://static.usrfiles.com/ugd/b8c837_43cdedc5c9ef437aaec158e14bc2b1c2.pdf
- https://static.usrfiles.com/ugd/df4650_624a379e35c94dc3b79a1954869116a0.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_off00004dd9.binfeba6dfc5bec9bb7705d3ce9d4a9101d6cf8a47d08828dac465bd1928ca0d905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DD9 | 5384 bytes |
font_01_sfnt_off00006043.bin7f4b807d32d23a11f7efc7afbe4922350780301fc4b2484f253c23f9e8a80d73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6043 | 9668 bytes |
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