MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious File: Malicious Link
The PDF file was identified as malicious due to a critical heuristic firing for a redirector link pointing to known malicious infrastructure. It also contains a large number of external PDF links, characteristic of a link farm. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a compromised or malicious site. No scripts were extracted from this sample.
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/wix?keyword=fusiform+aneurysm+ascending+aorta
- https://static.usrfiles.com/ugd/b8c837_f9094cecce29413e8dbf969416a669a0.pdf
- https://static.usrfiles.com/ugd/a2d007_5cc23ac172af4fd09d74b2fcdca1d22e.pdf
- https://static.usrfiles.com/ugd/b8c837_06f3629ff1844fcb9a9f43b560af8846.pdf
- https://static.usrfiles.com/ugd/23b571_95819d0029f74fe7b97f644e8ba47764.pdf
- https://static.usrfiles.com/ugd/b8c837_353b0119927641cb82803edbdeb8fc6f.pdf
- https://cdn.shopify.com/s/files/1/0432/1850/1799/files/41315084233.pdf
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/29928020642.pdf
- https://static.usrfiles.com/ugd/e643da_40b82a1eb86248ef843895ff38e0d34c.pdf
- https://static.usrfiles.com/ugd/73c254_5d31cde054fc466199c2c4b8890567ae.pdf
- https://static.usrfiles.com/ugd/b8c837_6040b59e78994197999565aa9c536a0d.pdf
- https://static.usrfiles.com/ugd/b8c837_2980f03b62a040bf9d78b0240be816ca.pdf
- https://cdn.shopify.com/s/files/1/0432/1656/8487/files/wewemokolimosirelikuw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
- https://cdn.shopify.com/s/files/1/0434/4768/1191/files/73226685449.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_off00006686.bin962130cd22cf38b5c7a568431da32703c0a4b98c9ba3f1e6d6942f8614ee4285 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6686 | 5364 bytes |
font_01_sfnt_off000078bb.binc878c816f2bdb4a31bd8e10947a77e50e744669173f53340f0e5984e2b37056e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78BB | 10152 bytes |
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