MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'algebra exponents worksheet with answers' and a URL that appears to be part of a link farm designed to manipulate search engine results. The primary malicious URL identified is https://ttraff.ru/wb?keyword=algebra%20exponents%20worksheet%20with%20answers, which is likely used to redirect users to further 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.ru/wb?keyword=algebra%20exponents%20worksheet%20with%20answers
- http://febugoluv.lostharbormusic.com/uploads/1/3/2/3/132303382/4edf44b97.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3847/files/92436159849.pdf
- https://cdn.shopify.com/s/files/1/0433/8548/7525/files/kixukogasasifepogevanefe.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94766401197.pdf
- https://cdn.shopify.com/s/files/1/0430/3365/7507/files/mozipijeguzoxosokirixali.pdf
- https://cdn.shopify.com/s/files/1/0429/5848/7703/files/tutorial_belajar_java.pdf
- https://cdn.shopify.com/s/files/1/0432/2033/6802/files/45824931792.pdf
- https://cdn.shopify.com/s/files/1/0428/9894/8255/files/32920991430.pdf
- https://cdn.shopify.com/s/files/1/0434/5279/2982/files/airline_city_codes.pdf
- https://cdn.shopify.com/s/files/1/0439/1036/5339/files/john_deere_x534.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2125/files/fsk_modulation_and_demodulation_theory.pdf
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/gasilagutu.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/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005493.bin1737470b5c8d868ceab652600d45eabd3c9a40cae12614ecfbd1410ef9c0b819 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5493 | 5220 bytes |
font_01_sfnt_off00006655.bin9542e7663706821bb876cc876362f2f0447423c7941f3f4c1a3b89075d709960 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6655 | 10076 bytes |
font_02_sfnt_off00008899.binad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8899 | 4324 bytes |
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