MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=japanese+verb+adjective+form'. The document body, though heavily obfuscated, contains text related to 'Japanese verb adjective form' and a URL that appears to be part of a link farm designed to attract traffic. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector suggests an attempt to lead the user to a harmful destination.
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/pify?keyword=japanese+verb+adjective+form
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/4250/2818/files/uba_aptitude_test_past_questions.pdf
- https://cdn.shopify.com/s/files/1/0430/7897/5639/files/hairspray_score.pdf
- https://cdn.shopify.com/s/files/1/0463/0786/8834/files/enzymes_and_cellular_regulation_pogil_answer.pdf
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/kekozurofadeb.pdf
- https://static.usrfiles.com/ugd/74a852_e755c47be9124d1d945efed6544dd5fb.pdf
- https://static.usrfiles.com/ugd/4bb894_13894cbdb4bf44ce8c3716bf994a527a.pdf
- https://cdn.shopify.com/s/files/1/0460/3189/6740/files/96498034507.pdf
- https://cdn.shopify.com/s/files/1/0431/2200/0029/files/wakinovopakirobu.pdf
- https://static.usrfiles.com/ugd/e9cba9_67d1dac32c094be2863a6cf919a04c09.pdf
- https://static.usrfiles.com/ugd/268ab1_d5733d2811f5410984f7e483f606c012.pdf
- https://static.usrfiles.com/ugd/b8c837_dd3f338279524cbdb4d0238203f1e331.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b236.bin4334e3a4dd031b14203b41388421f86ca71971d79d39f25476c0fc0b1d7f6835 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB236 | 21356 bytes |
font_01_sfnt_off0000f622.binaae19d498a9d7c1255f15f7eb8326bb3dc3b6428007b30d9f48055470fbc5a95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF622 | 5532 bytes |
font_02_sfnt_off000108ea.bin0e310eda2a7021a0a0aada2fb58d64b147c3c5af2acf4350e2f08af176fccd32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108EA | 14624 bytes |
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