MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to a link farm hosted on static.usrfiles.com. One critical heuristic identified a link to a known malicious redirector, ttraff.link, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains text related to 'Isilon a2000 data sheet', suggesting a lure to trick users into clicking the malicious links.
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.link/wix?keyword=isilon+a2000+data+sheet
- https://cdn.shopify.com/s/files/1/0433/3276/3801/files/tavetupogikavamimen.pdf
- https://cdn.shopify.com/s/files/1/0431/0722/1670/files/42970382753.pdf
- https://cdn.shopify.com/s/files/1/0434/0560/7079/files/10391905788.pdf
- https://cdn.shopify.com/s/files/1/0431/6332/0469/files/xefuwodiwitiku.pdf
- https://static.usrfiles.com/ugd/5ea4d5_4c92ddadebf94d5d96763e2387a7c390.pdf
- https://static.usrfiles.com/ugd/99a8f2_66f89afb6d064de29d2c880dd27ce299.pdf
- https://static.usrfiles.com/ugd/85d67f_f92b19488f284eda813a1fb0e3b5b06a.pdf
- https://static.usrfiles.com/ugd/921909_8e39c6694f374f1e90f691d84ad6b9ae.pdf
- https://static.usrfiles.com/ugd/b8c837_9c9e79d1581144c1ba5652b781978cfe.pdf
- https://static.usrfiles.com/ugd/38955b_d71f3ef9be324d4ab1b05e20168aa326.pdf
- https://static.usrfiles.com/ugd/a44510_4a6631ef8bed4114b488840153404c09.pdf
- https://static.usrfiles.com/ugd/7f929b_9b7a8f0e310644c8aa6401d136dcb149.pdf
- https://static.usrfiles.com/ugd/ae059d_b2a16169886144a5b3e5459433165660.pdf
- https://static.usrfiles.com/ugd/8ebb60_e5ad9e9f45ba4221be95bd9808d34414.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_off00005eb0.bin6c1118439453a441f7cda49fee33e6e11945752065b4f8cdd7255eedb00c1654 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EB0 | 5028 bytes |
font_01_sfnt_off00006fc1.bin41ce5ad433ba67cf073c650e6da123fa8c1cb35b7ada4618c756c82c7db04c28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FC1 | 10408 bytes |
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