MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=arioso+piano+pdf'. This indicates the document's primary purpose is to lure users to a malicious site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted, but the embedded URLs and the ML classifier strongly indicate malicious intent.
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=arioso+piano+pdf
- http://files.thecentreofthecosmos.com/uploads/1/3/0/7/130776351/6920248ed433.pdf
- http://files.childrentoday.org/uploads/1/3/2/6/132681910/minixuzukafokibi.pdf
- https://cdn.shopify.com/s/files/1/0430/8264/5665/files/98423801093.pdf
- https://cdn.shopify.com/s/files/1/0434/1645/3272/files/zulowonesipanuzapamonimuk.pdf
- https://cdn.shopify.com/s/files/1/0454/3184/9128/files/process_skills_in_problem_solving.pdf
- https://cdn.shopify.com/s/files/1/0435/3274/6906/files/attention_guitar_tabs.pdf
- https://cdn.shopify.com/s/files/1/0439/7580/3038/files/gidev.pdf
- https://cdn.shopify.com/s/files/1/0432/5788/8936/files/95530461308.pdf
- https://cdn.shopify.com/s/files/1/0454/7071/1958/files/42489937139.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53681635306.pdf
- https://cdn.shopify.com/s/files/1/0430/4768/2201/files/72671108649.pdf
- https://cdn.shopify.com/s/files/1/0429/8702/8641/files/togavolizefuzigog.pdf
- https://cdn.shopify.com/s/files/1/0435/7393/6291/files/fefutawesogidu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004723.bin83f1ecd07cabc63364a87bcee7c7dde5f8f17385de663e52c25ba1db2f8622d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4723 | 4992 bytes |
font_01_sfnt_off00005828.bin85c923309a3e5dbc975f05d50147dc012344c16ee266b49212cb0c207e0e33a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5828 | 10132 bytes |
font_02_sfnt_off00007b00.binb330339415d7fa9c1b652c1fb2a052ec06569061b7b71506ab53161dc9b94742 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B00 | 16100 bytes |
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