MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=alphabet+letters+to+color+pdf. The document body, though corrupted, also contains this URL and numerous other links hosted on Shopify, suggesting a link farm or redirection scheme to obscure the ultimate malicious destination. The ML classifier also strongly flagged this PDF as malicious.
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=alphabet+letters+to+color+pdf
- http://jubukexu.gracebecker.org/uploads/1/3/2/6/132683138/3248077.pdf
- http://files.noeleencosgrovemusic.com/uploads/1/3/1/8/131856279/6818246.pdf
- http://files.straightedgewindowtinting.com/uploads/1/3/1/3/131380308/somekuvatumovaroz.pdf
- https://cdn.shopify.com/s/files/1/0436/4750/0448/files/64677966604.pdf
- https://cdn.shopify.com/s/files/1/0432/8125/2512/files/foam_board_sheets_wholesale.pdf
- https://cdn.shopify.com/s/files/1/0434/0137/9996/files/brs_biochemistry_molecular_biology_and_genetics_6th_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/2854/5693/files/81748848064.pdf
- https://cdn.shopify.com/s/files/1/0440/5359/4277/files/11941443225.pdf
- https://cdn.shopify.com/s/files/1/0440/8963/9077/files/mawosod.pdf
- https://cdn.shopify.com/s/files/1/0430/7537/1159/files/76502407231.pdf
- https://cdn.shopify.com/s/files/1/0430/3064/2837/files/karuvonexiti.pdf
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/jelogopifetokegogidakok.pdf
- https://cdn.shopify.com/s/files/1/0429/7146/3831/files/basler_gige_camera_manual.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_off00005696.bin0571f499bd630ee62779c11bea52d4cdc595ae379fde1d03028626d7a664c10d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5696 | 5372 bytes |
font_01_sfnt_off000068c8.bin243306d012ae91f47e426722b49dfbdef6f2a9d62b1f8821bdeb79666352086c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68C8 | 10044 bytes |
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