MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external PDF files. The primary malicious URL identified is https://ttraff.com/wb?keyword=xhtml2pdf%20vs%20wkhtmltopdf. The document body itself is largely unreadable binary data, but the embedded URLs are the primary indicators of malicious intent.
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/wb?keyword=xhtml2pdf%20vs%20wkhtmltopdf
- http://files.medisysprepares.org/uploads/1/3/1/3/131383544/7567698.pdf
- http://files.sipanddrift.com/uploads/1/3/1/3/131379217/bopozi.pdf
- http://vorelo.pyralag.com/uploads/1/3/0/7/130775164/pogewokaj_zorosevi_mesegisedawozeg.pdf
- http://files.marlincoveoc.com/uploads/1/3/1/3/131381369/5424900.pdf
- http://files.personalcheftony.com/uploads/1/3/0/7/130739621/piraxu.pdf
- https://cdn.shopify.com/s/files/1/0439/1829/5195/files/zosivewufepaxejizano.pdf
- https://cdn.shopify.com/s/files/1/0430/4633/8709/files/overcoming_anorexia_nervosa.pdf
- https://cdn.shopify.com/s/files/1/0433/4764/0469/files/femunolatisogulu.pdf
- https://cdn.shopify.com/s/files/1/0437/7732/7265/files/82307000383.pdf
- https://cdn.shopify.com/s/files/1/0429/6966/1589/files/zodesepe.pdf
- https://cdn.shopify.com/s/files/1/0428/4183/3635/files/movelugepiveju.pdf
- https://cdn.shopify.com/s/files/1/0436/8737/9094/files/coffea_liberica.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xeniwepisovera.pdf
- https://cdn.shopify.com/s/files/1/0438/0193/6033/files/lexical_meaning_in_semantic.pdf
- https://cdn.shopify.com/s/files/1/0432/8384/1190/files/fuvavokotos.pdf
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/bulapoke.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_off000057cf.binbb2eb4df3c438d93900b63454002c742ab2e22130c7cf4012a3f2ca3d18a4e98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57CF | 5300 bytes |
font_01_sfnt_off000069db.bin4760e120767f94ff1bec018c33f11be63b2307b72e6e83bf081ee7ea3fb24ce9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69DB | 14680 bytes |
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