MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'flute sheet music'. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves tricking the user into visiting a malicious URL, likely for further exploitation or phishing.
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=flute+sheet+music+panic+at+the+disco
- http://files.corbyphotoclub.co.uk/uploads/1/3/1/4/131437599/mugosanulebozi_najufeba_vuwozama_fikofakinine.pdf
- http://files.liveoakdrawing.com/uploads/1/3/1/0/131070149/b16e0c28885b5.pdf
- http://files.yauponberrypress.com/uploads/1/3/0/9/130969368/e91cbf41d.pdf
- http://files.marriagecounselingindenver.com/uploads/1/3/1/3/131398134/sokalumo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9570/4227/files/always_bon_jovi_piano.pdf
- https://cdn.shopify.com/s/files/1/0434/6304/9376/files/lufenevixojatojivifewijur.pdf
- https://cdn.shopify.com/s/files/1/0441/1087/2728/files/mapanuwabunenak.pdf
- https://cdn.shopify.com/s/files/1/0432/0326/4667/files/90422851240.pdf
- https://cdn.shopify.com/s/files/1/0436/5064/6169/files/telegram_spam_bot.pdf
- https://cdn.shopify.com/s/files/1/0430/2068/1377/files/pujar.pdf
- https://cdn.shopify.com/s/files/1/0434/5017/1554/files/21960954335.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_off0000544e.bin75c9c4de693274671bd771ec84872b919dcc3f3011aabfc8c4da49ecaa285874 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x544E | 5172 bytes |
font_01_sfnt_off000065c0.bin2d323811a4d7fc845f522b702d3df29ed900ac07b5bbfbe9fd041ea814cd438e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65C0 | 9864 bytes |
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