MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of embedded external links, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.ru/pify?keyword=goodbye+lenin+sheet+music+free, which is likely used to redirect users to further malicious content. The document body contains garbled text but also includes the same malicious URL and several benign-looking Shopify URLs, along with other unknown URLs.
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=goodbye+lenin+sheet+music+free
- http://pebule.championcleaning.net/uploads/1/3/1/3/131382134/8272b4cb409.pdf
- http://buxoriluv.camaschurch.net/uploads/1/3/1/4/131437619/sitej.pdf
- http://files.shamrockbusinesscentre.com/uploads/1/3/1/1/131164538/8052118.pdf
- https://cdn.shopify.com/s/files/1/0432/3062/5950/files/boys_like_girls_thunder.pdf
- https://cdn.shopify.com/s/files/1/0437/7827/7525/files/alistar_support_build.pdf
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/2386823309.pdf
- https://cdn.shopify.com/s/files/1/0428/9842/3967/files/wofumalitodutalas.pdf
- https://cdn.shopify.com/s/files/1/0430/5698/8311/files/traditional_approaches_to_the_study_of_political_science.pdf
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/alif_episode_10_by_umera_ahmed.pdf
- https://cdn.shopify.com/s/files/1/0434/1815/7221/files/kajonikudovut.pdf
- https://cdn.shopify.com/s/files/1/0434/6957/0198/files/54783050031.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.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_off000045d0.bina5826e078570250a38e3308085b2c39239fded5352c59b1f5dbf2b4df3b19fb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45D0 | 5324 bytes |
font_01_sfnt_off000057cc.binaa33933b5ee617e8d84c262c92583251d6f87edf8b8a63609b74f55545ed5ae5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57CC | 9656 bytes |
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