MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. Additionally, it contains a PDF link farm, with many links pointing to Shopify domains hosting other PDFs. The primary malicious URL is https://ttraff.ru/pify?keyword=bts+butterfly+album, which is likely used to lure victims. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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=bts+butterfly+album
- http://files.mostlymaille.com/uploads/1/3/2/6/132695867/pazidugifatutezexu.pdf
- https://cdn.shopify.com/s/files/1/0431/0269/9681/files/mufasafiviv.pdf
- https://cdn.shopify.com/s/files/1/0432/2299/1007/files/busukubaxuki.pdf
- https://cdn.shopify.com/s/files/1/0432/6300/0734/files/xibiriretukiwunofamuna.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9361/files/sbi_bank_exams_syllabus.pdf
- https://cdn.shopify.com/s/files/1/0429/2041/1303/files/pilamurosepuwakubedu.pdf
- https://cdn.shopify.com/s/files/1/0437/1139/8041/files/72543470843.pdf
- https://cdn.shopify.com/s/files/1/0430/0383/8615/files/popular_pizza_toppings.pdf
- https://cdn.shopify.com/s/files/1/0437/7201/8845/files/coldfusion_tutorial.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008787.binfdcb24932fa4ae43fb7388fc87437faa87cf0b81e7a747c9635ef98ccff8c787 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8787 | 21756 bytes |
font_01_sfnt_off0000c9d4.bined1521571f634ac6839e2d75708ce6df696520bbdff583b36794a0a0c8f5c998 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9D4 | 4824 bytes |
font_02_sfnt_off0000da3f.bind12d6b7ba6ad1d86cf8d4be04b16ed8fd9826554ff81b0c8c8563d5dd173145f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3F | 13876 bytes |
font_03_sfnt_off00010640.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10640 | 4324 bytes |
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