MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many of which point to a redirector service designed to obscure the final destination. The primary malicious URL identified is a redirector that attempts to lure users with a keyword related to educational content. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content.
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=area+of+trapezium+and+polygon+worksheet
- http://bapovom.vscl.org/uploads/1/3/1/3/131380005/ca9330c986.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/8450/3453/files/loi_binomiale_exercice_corrig.pdf
- https://cdn.shopify.com/s/files/1/0432/2852/8799/files/vuzisenavefexu.pdf
- https://cdn.shopify.com/s/files/1/0432/8197/3416/files/rifepu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
- https://cdn.shopify.com/s/files/1/0434/3077/2901/files/nidasiwalagavijidi.pdf
- https://cdn.shopify.com/s/files/1/0449/6814/9151/files/xititujavarewubug.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2691/files/sanamalipeti.pdf
- https://cdn.shopify.com/s/files/1/0432/9861/9557/files/vuwizasonopemafiverovi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/julanefiwozuxam.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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c6c.binf0f4af445f24fb37df73f45125d6cd0d060e8c526316d284e9f18c5ae283f28c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C6C | 5752 bytes |
font_01_sfnt_off00006ff2.bin856f88a075c37841595a79fff67b0e95db6d495db8df7ffcdd6889ec8d8a1257 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FF2 | 9736 bytes |
font_02_sfnt_off0000916f.bin51b8d4c4f17389d80b23040d591c0dccb099bca9103ea84f58116e310badbe13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x916F | 16088 bytes |
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