MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to PDF files hosted on Shopify, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. 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/pify?keyword=photosynthesis+lab+gizmo+answer+key+page+2
- http://files.cameronfarn.com/uploads/1/3/0/7/130775002/5761bad.pdf
- http://files.safehand.org/uploads/1/3/0/9/130969993/f0271341ce.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/7254/4150/files/makalah_mastoiditis.pdf
- https://cdn.shopify.com/s/files/1/0434/7337/1300/files/gusudugufojezezel.pdf
- https://cdn.shopify.com/s/files/1/0432/3459/0878/files/24662099533.pdf
- https://cdn.shopify.com/s/files/1/0432/3144/5156/files/yamaha_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/9599/0175/files/dulaxiburobajofemozoben.pdf
- https://cdn.shopify.com/s/files/1/0433/7883/5606/files/history_of_great_britain_download.pdf
- https://cdn.shopify.com/s/files/1/0439/8632/1566/files/gomizen.pdf
- https://cdn.shopify.com/s/files/1/0440/0765/3526/files/spell_check_foxit.pdf
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/best_spirit_level_app_for_android.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_off00006160.binf07db2b95e96283b1a5bb2db7d5cc315ce99ab255788c775340e5a3aa1d80935 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6160 | 5816 bytes |
font_01_sfnt_off0000751b.bin7ae30127bc665586d6dbf1dd65f1d7a1d04977c3649cf4ac2aaf727b5b1e5dca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x751B | 10556 bytes |
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