MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=calculus+iit+jee+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.
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.cc/pify?keyword=calculus+iit+jee+pdf
- http://files.awtprogresstracker.com/uploads/1/3/1/1/131164202/8810038.pdf
- http://folusulel.richmondinfo.net/uploads/1/3/1/4/131410227/169b68f.pdf
- http://webutek.robciccotelli.com/uploads/1/3/0/7/130739379/5073430.pdf
- http://files.badassoffitness.com/uploads/1/3/1/3/131379506/13af864.pdf
- http://files.cogophempstead.org/uploads/1/3/1/4/131408970/taput.pdf
- https://cdn.shopify.com/s/files/1/0432/5477/5970/files/angels_and_airwaves_the_adventure_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0440/6103/2598/files/setoturadogaburetijin.pdf
- https://cdn.shopify.com/s/files/1/0432/9861/9557/files/mebewerud.pdf
- https://cdn.shopify.com/s/files/1/0440/3704/6422/files/vadosumuxofijitozu.pdf
- https://cdn.shopify.com/s/files/1/0432/5530/0249/files/47574029277.pdf
- https://cdn.shopify.com/s/files/1/0430/0147/9321/files/nekonubuj.pdf
- https://cdn.shopify.com/s/files/1/0434/2854/4668/files/libro_techos_verdes.pdf
- https://cdn.shopify.com/s/files/1/0430/9676/8661/files/firefox_popup_blocker.pdf
- https://cdn.shopify.com/s/files/1/0432/3006/8894/files/walisavopodi.pdf
- https://cdn.shopify.com/s/files/1/0435/0813/8150/files/38916779295.pdf
- https://cdn.shopify.com/s/files/1/0429/2512/9894/files/mufijukagixa.pdf
- https://cdn.shopify.com/s/files/1/0433/8152/2599/files/skyrim_character_selection_mod.pdf
- https://cdn.shopify.com/s/files/1/0432/0601/7186/files/mixewugedatigin.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000083f4.binca3b3ccee7f9ec848b5fdfe0ac7535f47d96c6be69c8183d6829bf79a18078b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83F4 | 5032 bytes |
font_01_sfnt_off00009529.binceb68c06c299ee3cc92090cd2269ca044c7f81ba72b167f64210b9ec0a02348b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9529 | 10280 bytes |
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