MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain the malicious URL and other benign-looking PDF links, suggesting a link farm or phishing lure.
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.com/wix?keyword=astm+d4541+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_e29708be502f42099aadc15b0e736f8b.pdf
- https://static.usrfiles.com/ugd/b8c837_5cd52917e14841fa9d6d8f502e6b7cb4.pdf
- https://static.usrfiles.com/ugd/299074_55d38a95dd2240d5a677e7bc8d8c1b22.pdf
- https://static.usrfiles.com/ugd/97493d_cdb95f493ec54e90a578f6407f9b5d31.pdf
- https://static.usrfiles.com/ugd/b8c837_57ff512707e844248063155b12a8eefa.pdf
- https://static.usrfiles.com/ugd/299074_fa42e0c8b4e640f6a1acb917971ed41d.pdf
- https://static.usrfiles.com/ugd/576447_7e3e8368017f4849833bc528e7c11e3e.pdf
- https://cdn.shopify.com/s/files/1/0433/1618/3205/files/56565368093.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bumagigefabap.pdf
- https://cdn.shopify.com/s/files/1/0434/0491/8941/files/26122788855.pdf
- https://cdn.shopify.com/s/files/1/0434/6042/7928/files/41675150152.pdf
- https://cdn.shopify.com/s/files/1/0427/6443/5612/files/english_communication_lessons.pdf
- https://cdn.shopify.com/s/files/1/0429/6117/4687/files/how_to_rename_a_file_in_unix.pdf
- https://cdn.shopify.com/s/files/1/0437/3122/2677/files/basic_english_grammar_book.pdf
- https://cdn.shopify.com/s/files/1/0434/4443/7144/files/24918364613.pdf
- https://cdn.shopify.com/s/files/1/0428/5012/3943/files/sejifufisoxexelavu.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_off000067cc.bin7060ea300cdc03dead6e64e4328788f40c5edc41babf1d4e52476e413a7bb5d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67CC | 5104 bytes |
font_01_sfnt_off0000792e.bin4a6bb9da9f492795add1d2d835442a6cc123d6ba64f5766a8d6278a928c0f1d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x792E | 10352 bytes |
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