MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=concierto+aranjuez+sheet+music+free`, which is likely used to direct users to a malicious site. The document body, though heavily obfuscated, contains this URL and other Shopify links.
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=concierto+aranjuez+sheet+music+free
- http://files.mcldanville.com/uploads/1/3/0/7/130739144/9611911.pdf
- https://cdn.shopify.com/s/files/1/0463/3339/5099/files/pofirodupireroritogobenew.pdf
- https://cdn.shopify.com/s/files/1/0433/9240/1573/files/11435103203.pdf
- https://cdn.shopify.com/s/files/1/0429/2168/9254/files/91376147911.pdf
- https://cdn.shopify.com/s/files/1/0433/7677/1224/files/12287247415.pdf
- https://cdn.shopify.com/s/files/1/0463/0478/8642/files/advertisement_worksheet_for_grade_3.pdf
- https://cdn.shopify.com/s/files/1/0429/1778/9862/files/adobe_illustrator_notes_free.pdf
- https://cdn.shopify.com/s/files/1/0439/1924/5467/files/insurgency_sandstorm_not_ing.pdf
- https://cdn.shopify.com/s/files/1/0463/4689/5517/files/noxizubasoxetivozipovalo.pdf
- https://cdn.shopify.com/s/files/1/0455/7622/4933/files/30873375162.pdf
- https://cdn.shopify.com/s/files/1/0433/5783/1326/files/daxopogudibuj.pdf
- https://cdn.shopify.com/s/files/1/0431/5296/5792/files/unchanging_god_victory_worship_chords.pdf
- https://cdn.shopify.com/s/files/1/0433/2892/9960/files/rust_sheet_metal_scraps.pdf
- https://cdn.shopify.com/s/files/1/0428/6775/3116/files/89683231491.pdf
- https://cdn.shopify.com/s/files/1/0433/6350/0197/files/pocket_sand_gif.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_off0000442a.bin0cf2cf032a4126dec7c268f847bc5de1ceb4a336de31d19f712137c99547a096 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x442A | 5120 bytes |
font_01_sfnt_off00005569.bin40646e8fc7bb60d94af7bad0a6356b64848d2cf383305a593688655d04b8ffe0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5569 | 9812 bytes |
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