MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, including a redirector URL, disguised as search results for PDF downloads. The primary malicious link, https://ttraff.link/wix?keyword=biblia+reina+valera+1995+pdf+descargar, is a known malicious redirector. The document body itself is heavily obfuscated but contains this and other URLs pointing to PDF files, likely as part of a link farm to improve SEO for malicious content. The ML classifier strongly indicated maliciousness.
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=biblia+reina+valera+1995+pdf+descargar
- http://files.rosedalecurriculum.com/uploads/1/3/1/1/131164460/farosi.pdf
- http://dufux.mapmrc.com/uploads/1/3/0/9/130969465/dabapitesunuzajivew.pdf
- http://files.thepreregtrainingcompany.com/uploads/1/3/1/4/131454373/defub.pdf
- https://cdn.shopify.com/s/files/1/0437/5740/4309/files/higgins_lake_fishing_report.pdf
- https://cdn.shopify.com/s/files/1/0434/0849/0663/files/bhikari_movie_song_mr_jatt.pdf
- https://cdn.shopify.com/s/files/1/0432/2181/1364/files/netflix_videos_windows.pdf
- https://cdn.shopify.com/s/files/1/0428/1516/0487/files/ashokan_farewell_violin.pdf
- https://cdn.shopify.com/s/files/1/0431/5955/2155/files/zizof.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/new_bus_simulator_games.pdf
- https://cdn.shopify.com/s/files/1/0437/9135/1969/files/introduction_to_linear_algebra_serge_lang.pdf
- https://cdn.shopify.com/s/files/1/0434/7605/8274/files/chuyn_t_sang_nh.pdf
- https://cdn.shopify.com/s/files/1/0432/2567/7982/files/64255969511.pdf
- https://cdn.shopify.com/s/files/1/0431/3301/0074/files/91487427958.pdf
- https://cdn.shopify.com/s/files/1/0429/5370/3577/files/61145673527.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_off00004bd0.bina04ca56fa72c19640637523232433c6f87e0dd94cc8da787ecc108785e727f6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4BD0 | 5904 bytes |
font_01_sfnt_off00006004.bin3aee81fcc94d369f091ca914271ae07ef9584722aec391cd92316fa9cb11869b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6004 | 10656 bytes |
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