MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of embedded links, including a primary redirector URL, suggesting an attempt to direct users to malicious infrastructure. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL confirms a high likelihood of malicious intent. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload.
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=logo+brazil+dls+2018
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/18122d_1c5077fd886f4ff0a71c5b3c30f447df.pdf
- https://static.usrfiles.com/ugd/440e29_58564b8f66d242f1a4dcbe024f2dfb8e.pdf
- https://static.usrfiles.com/ugd/93971e_89792863e8754930ad6d49c67b4b323c.pdf
- https://static.usrfiles.com/ugd/b8c837_b4cc2e1d8739428d80427be9b2dc7698.pdf
- https://static.usrfiles.com/ugd/87a178_2757217aa41c40839586af23f18eada6.pdf
- https://cdn.shopify.com/s/files/1/0433/4957/3784/files/paribapov.pdf
- https://cdn.shopify.com/s/files/1/0436/9884/7896/files/anomalias_dentarias_de_tamao.pdf
- https://cdn.shopify.com/s/files/1/0440/0994/7301/files/1527050399.pdf
- https://cdn.shopify.com/s/files/1/0434/3146/1016/files/neguwozimesa.pdf
- https://cdn.shopify.com/s/files/1/0431/4313/5393/files/definicion_tecnologias_emergentes.pdf
- https://cdn.shopify.com/s/files/1/0431/4673/9868/files/jakijeluwakipelesozuxiwe.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6586/files/folajuvenotitiwiku.pdf
- https://cdn.shopify.com/s/files/1/0427/7937/7830/files/april_2020_current_affairs_bankersadda.pdf
- https://static.usrfiles.com/ugd/b8c837_27e7badc137c433c9697aaf95c72375f.pdf
- https://static.usrfiles.com/ugd/b8c837_97bb5a741a0e419a82bba4f1c117ca3a.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_off00004e9e.bin3d417f1134bc90a74d1d63edd26953b58d2814a900c07338452d0b34731aff2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E9E | 5644 bytes |
font_01_sfnt_off000061ea.bin8a6e1c548f5ad7692b5c2f70379d93916755a0aa8decd01f4fe1f189d6281aa1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61EA | 11528 bytes |
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