MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.link, disguised with a keyword suggesting educational material. The document body, though heavily obfuscated, contains the same lure and the malicious URL. The PDF also hosts a large number of links to other PDFs, many hosted on Shopify, which is a common tactic for SEO poisoning or link farming to obscure malicious activity. The ML classifier strongly flagged this PDF as malicious.
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=cuaderno+de+actividades+holt+spanish+1+answers
- http://vapigupi.saintgregorysileby.org/uploads/1/3/1/3/131380934/kotebogisarisaf-folijoma-rojugizaj.pdf
- http://dinukebe.confessionsofanerd.com/uploads/1/3/2/6/132695584/9005192.pdf
- http://lusixas.bethanymiraclevillage.org/uploads/1/3/0/7/130776054/871251.pdf
- http://files.bouldenscience.com/uploads/1/3/1/8/131856743/6e73b9752844573.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/fundamentals_of_aerodynamics_john_d_anderson.pdf
- https://cdn.shopify.com/s/files/1/0463/2949/5713/files/ruvaruga.pdf
- https://cdn.shopify.com/s/files/1/0432/2977/3979/files/44833043640.pdf
- https://cdn.shopify.com/s/files/1/0434/0357/5447/files/manual_tablet_alcatel_1t_10_en_espaol.pdf
- https://cdn.shopify.com/s/files/1/0465/1198/0694/files/40150037781.pdf
- https://static.usrfiles.com/ugd/6f5f23_203234c33c844da9bd0d9e0486f04610.pdf
- https://cdn.shopify.com/s/files/1/0434/7366/6213/files/60418516248.pdf
- https://cdn.shopify.com/s/files/1/0437/7916/2263/files/tangled_songs_mp4.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004977.bin5594a70660c74c106337667c1c5f108eae1cc1af2b5abeee278f5cc3e0865d70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4977 | 5272 bytes |
font_01_sfnt_off00005b77.binbb7d56775f60bfc5fd3f25f59283ec919cca895ef3fa67951843015adfa97f35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B77 | 10280 bytes |
font_02_sfnt_off00007e9e.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E9E | 4324 bytes |
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