MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'prime factorization' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates a phishing or malware distribution attempt.
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=prime+factorization+of+180+answers
- http://files.redandgreen.net/uploads/1/3/2/7/132740278/1f45b9f20eeac8.pdf
- http://files.met-track.com/uploads/1/3/1/0/131070330/5729293.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/1610/0776/files/iron_jawed_angels_worksheet_answers.pdf
- https://cdn.shopify.com/s/files/1/0435/1547/8176/files/28573580647.pdf
- https://cdn.shopify.com/s/files/1/0431/0777/8711/files/5562941234.pdf
- https://cdn.shopify.com/s/files/1/0436/1909/0595/files/pigorezirilope.pdf
- https://cdn.shopify.com/s/files/1/0437/7424/7069/files/rizeliludi.pdf
- https://cdn.shopify.com/s/files/1/0432/0962/1665/files/70143102615.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65939759823.pdf
- https://cdn.shopify.com/s/files/1/0432/2033/6807/files/korewibotuvidadob.pdf
- https://cdn.shopify.com/s/files/1/0437/2486/5685/files/xedadu.pdf
- https://cdn.shopify.com/s/files/1/0438/2670/8640/files/88203464415.pdf
- https://cdn.shopify.com/s/files/1/0430/3287/1074/files/arithmetic_sequence_problem_solving_with_solution.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_off000044ed.binec960ca2f9543699ebb958271f76f51f506a205355f5e5778325944c6511de75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44ED | 5524 bytes |
font_01_sfnt_off000057b4.bin4963d7b3a8463aa83c3ea157f2de0b4b947068e7a36eb81d2205e0d833cab7b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57B4 | 9624 bytes |
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