MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though obfuscated, contains a URL that appears to be part of a link farm designed to direct users to malicious content. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a phishing or redirection attempt.
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=resumo+de+analise+combinatoria+pdf
- http://files.christinareeves.com/uploads/1/3/0/7/130740200/6201047.pdf
- http://files.twisteddreamsff.com/uploads/1/3/1/3/131379382/gurin_komil_bimufarezak.pdf
- http://files.jpknightsmovie.com/uploads/1/3/0/9/130969965/danis_domotabu_sekebojojujot_fagegelisipak.pdf
- http://files.broeifionydd.com/uploads/1/3/2/6/132682230/tidazadipowes.pdf
- https://cdn.shopify.com/s/files/1/0434/0921/1549/files/72599133801.pdf
- https://cdn.shopify.com/s/files/1/0434/1107/9317/files/30894055277.pdf
- https://cdn.shopify.com/s/files/1/0440/4389/4934/files/kubotur.pdf
- https://cdn.shopify.com/s/files/1/0428/7696/0924/files/vunaz.pdf
- https://cdn.shopify.com/s/files/1/0431/6417/2445/files/serafumasaperowirov.pdf
- https://cdn.shopify.com/s/files/1/0435/4126/6587/files/59639357286.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mogapusezonoxifetomo.pdf
- https://cdn.shopify.com/s/files/1/0432/7152/0411/files/ritexevitiwuj.pdf
- https://cdn.shopify.com/s/files/1/0428/3082/3583/files/riwafisepu.pdf
- https://cdn.shopify.com/s/files/1/0437/0874/3834/files/mapumejisisizuzasaf.pdf
- https://cdn.shopify.com/s/files/1/0435/5158/8507/files/dilekotufoxuxewu.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_off000072e4.bind6e057e97ae4e4d9247a8949604fb305a773141c87917cf2075e790534756c4b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72E4 | 5448 bytes |
font_01_sfnt_off00008553.bin97985521e671218d7f2b90abbc42ce0124f5214ed9654b4249c10c8e2593949d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8553 | 10004 bytes |
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