MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious URL identified is 'https://ttraff.com/wix?keyword=calculo+de+madeira+para+telhado', which is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains text related to calculations and mentions wkhtmltopdf, suggesting it might be a lure to disguise the malicious link farm.
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.com/wix?keyword=calculo+de+madeira+para+telhado
- https://static.usrfiles.com/ugd/b8c837_7866946b93d54e1b8cc38ddc9c8c8b0d.pdf
- https://static.usrfiles.com/ugd/b8c837_88d4e4a0de87407eb2542fa5b09ffa29.pdf
- https://static.usrfiles.com/ugd/ecec20_eb44ae8c20c84b89ba47ce7ff88fbfa6.pdf
- https://static.usrfiles.com/ugd/b0b521_3c8844d78552470d91ca15e892624bb7.pdf
- https://static.usrfiles.com/ugd/06497e_018c378665ed410dba85e8cf9cbfa45f.pdf
- https://static.usrfiles.com/ugd/b8c837_2dfd60b35f3e44b8b92fc60f917c2efa.pdf
- https://static.usrfiles.com/ugd/5ecadc_59e3af29e15a4707996c0f40071eb22f.pdf
- https://static.usrfiles.com/ugd/d775a9_8366e43a17d24951b32c2e95d27dd46e.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdf
- https://cdn.shopify.com/s/files/1/0429/9948/0473/files/adenosina_bula_hipolabor.pdf
- https://cdn.shopify.com/s/files/1/0431/7341/3032/files/fewerojokafufafaxafome.pdf
- https://cdn.shopify.com/s/files/1/0436/0726/1341/files/affidavit_of_support_form_134_instructions.pdf
- https://static.usrfiles.com/ugd/b8c837_2984490deefa4548872edf3be348ae19.pdf
- https://static.usrfiles.com/ugd/e7e4a0_4c3cc8763b1f460697fdeb5c1f938416.pdf
- https://static.usrfiles.com/ugd/e02969_131fa18e8b5b4596b746a08b4c8fc986.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_off00006984.bin7dec1af9b2cb4bd6c037a703b8375d9f761e35a21e1e1fea1b73dd0019ff79b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6984 | 5040 bytes |
font_01_sfnt_off00007a77.binb795283a3a2028fd0f02fa5c94ad4413e8a8d28f115e4292c7e2225d639bd508 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A77 | 12420 bytes |
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