MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Curso ingles pdf' and includes the malicious URL, suggesting a lure for users to download content or access a course. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the presence of malicious and numerous external links, respectively. 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/pify?keyword=curso+ingles+pdf
- http://files.broadband4arizona.com/uploads/1/3/2/6/132695525/wivar-fozurivuzaj-sovizax-vovobabenavuz.pdf
- http://files.godswaytshirts.com/uploads/1/3/2/3/132302815/7c24d7928c8eda5.pdf
- http://files.amyhafemanndesign.com/uploads/1/3/1/4/131406432/bae17907c7.pdf
- https://cdn.shopify.com/s/files/1/0433/5229/3541/files/xumenogarezajiveva.pdf
- https://cdn.shopify.com/s/files/1/0428/8416/9894/files/bapezej.pdf
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/zunezexavebokegiwe.pdf
- https://cdn.shopify.com/s/files/1/0429/1752/7715/files/rigogufibegodexu.pdf
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/74257612106.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/digalikerewuxajevukadud.pdf
- https://cdn.shopify.com/s/files/1/0430/6717/9162/files/5016288421.pdf
- https://cdn.shopify.com/s/files/1/0433/4937/7174/files/sozasav.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/nosuvidizatadav.pdf
- https://cdn.shopify.com/s/files/1/0431/3546/7669/files/91724316354.pdf
- https://cdn.shopify.com/s/files/1/0433/4498/6262/files/pmd_to_converter.pdf
- https://cdn.shopify.com/s/files/1/0437/7896/5656/files/wodalu.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_off00006003.bin9276a594a28bcbf5f590ed2a5079f71a4f60d2d1f01ebf0526a5a07d7b64911a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6003 | 4904 bytes |
font_01_sfnt_off000070c3.bin6366fd5a05a718d24b510ea9a9cbd235d7ae827e1da2aa156082eb8fac185da8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70C3 | 11344 bytes |
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