MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=scantron+bubble+sheet', is identified as a malicious redirector. The document body text, though heavily obfuscated, contains this URL and references 'Scantron bubble sheet', suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to obscure the malicious destination. The ML classifier strongly flagged this PDF as malicious.
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=scantron+bubble+sheet
- http://tawow.evan-hawkins.com/uploads/1/3/0/7/130775386/77a87.pdf
- http://files.pathstopurpose.com/uploads/1/3/0/7/130739614/6a1d9c44.pdf
- http://xunaz.virtualvideogamestore.com/uploads/1/3/2/7/132741593/serexiwupak.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/3314/0127/files/sisugipefipogefukimirifez.pdf
- https://cdn.shopify.com/s/files/1/0429/2935/6959/files/64934700656.pdf
- https://cdn.shopify.com/s/files/1/0438/5076/0357/files/49490718355.pdf
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/57910586574.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
- https://cdn.shopify.com/s/files/1/0434/7337/1300/files/getebuvusubefumurajamiji.pdf
- https://cdn.shopify.com/s/files/1/0429/8476/7641/files/32907656032.pdf
- https://cdn.shopify.com/s/files/1/0430/6645/8266/files/falajim.pdf
- https://cdn.shopify.com/s/files/1/0451/8101/0071/files/cfa_curriculum_level_3.pdf
- https://cdn.shopify.com/s/files/1/0432/8806/8254/files/dodojulamamewibego.pdf
- https://cdn.shopify.com/s/files/1/0430/8759/3632/files/71674517965.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_off00005fe9.bin99333f61982295c23404f5e9134de40539773cc23b4e8382d38c70fa5b7b51d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FE9 | 5128 bytes |
font_01_sfnt_off00007141.binac4e6826704db514df6eef3a87ade2d520ba7b5ba735c7ddf416d1cbb3446ee6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7141 | 10120 bytes |
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