MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a heuristic firing for linking to known malicious redirector infrastructure, specifically 'https://ttraff.cc/wix?keyword=crossword+jigsaw+answers+nature+1'. It also exhibits characteristics of a PDF link farm, embedding a large number of external PDF links, with 'https://cdn.shopify.com/s/files/1/0437/5016/2583/files/libro_balun_canan_gratis.pdf' being one of the first identified. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of 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.cc/wix?keyword=crossword+jigsaw+answers+nature+1
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/5016/2583/files/libro_balun_canan_gratis.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2691/files/15194814378.pdf
- https://cdn.shopify.com/s/files/1/0435/0076/5336/files/21412099678.pdf
- https://cdn.shopify.com/s/files/1/0429/2686/6599/files/xixaruvosunimiga.pdf
- https://static.usrfiles.com/ugd/38bf1f_97234c5fc84843bd8e7f48100ebbbaab.pdf
- https://static.usrfiles.com/ugd/fb5067_c068cf2240524cbb8bed75370cfd6dc1.pdf
- https://static.usrfiles.com/ugd/b8c837_24929345fbb940dbb2dee78f07c4ccf0.pdf
- https://static.usrfiles.com/ugd/ca9b0a_86a73a655e504edcae02d50f2b06d2fc.pdf
- https://cdn.shopify.com/s/files/1/0432/2358/0830/files/53764730929.pdf
- https://cdn.shopify.com/s/files/1/0433/2827/4585/files/32209079392.pdf
- https://cdn.shopify.com/s/files/1/0433/8204/6869/files/harley_davidson_6.5_boombox_manual.pdf
- https://cdn.shopify.com/s/files/1/0438/3303/2864/files/alexa_not_connecting_to_internet.pdf
- https://cdn.shopify.com/s/files/1/0430/7773/0464/files/52160553435.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000755c.bin4f3578e82a71e1e26d12c5eec668196faaae418f318c67e7bf25aa8b67227257 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x755C | 5084 bytes |
font_01_sfnt_off000086c7.bineced2c4c6a29b3bb20ed1d1bc94c920520a558d8de3fcfdb66d63a315d4cfad9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86C7 | 10260 bytes |
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