MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one prominent URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a PDF document related to 'power amplifier classification'. The presence of multiple external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to drive traffic to malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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=power+amplifier+classification+pdf
- http://files.jennifermackenziedunbar.com/uploads/1/3/1/8/131871618/83fe6197f.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/3525/5203/files/16932424938.pdf
- https://cdn.shopify.com/s/files/1/0450/5380/4694/files/a_level_psychology_notes_aqa.pdf
- https://cdn.shopify.com/s/files/1/0435/7701/6483/files/88740526708.pdf
- https://cdn.shopify.com/s/files/1/0433/9017/3333/files/76650117831.pdf
- https://cdn.shopify.com/s/files/1/0433/9453/1484/files/papazulujinudo.pdf
- https://cdn.shopify.com/s/files/1/0438/6082/0133/files/47065194146.pdf
- https://cdn.shopify.com/s/files/1/0434/2048/3751/files/tituxofiwosudogi.pdf
- https://cdn.shopify.com/s/files/1/0432/7315/8821/files/renowavoxuvilidinematuw.pdf
- https://cdn.shopify.com/s/files/1/0437/2971/5354/files/captain_marvel_comic_book.pdf
- https://cdn.shopify.com/s/files/1/0437/9885/5840/files/peter_drucker_management_theory.pdf
- https://cdn.shopify.com/s/files/1/0429/9263/1962/files/zikegole.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_off000058cc.bin0c50b1be5564d55987dfb23ebcf19ece7205b1205e64b8a07dbab9a409b53a52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58CC | 5396 bytes |
font_01_sfnt_off00006b15.bin421fdcf68edb3970f838f595db70fd10d90d5a3b121ec1e1c092243242e79d46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B15 | 9744 bytes |
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