MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one prominently pointing to 'ttraff.ru', identified as a malicious redirector. The document body, though partially corrupted, includes the same URL and a title related to medical guidelines, suggesting a lure to entice users to click the malicious link. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a redirection-based attack.
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=chronic+stable+angina+guidelines+2016
- http://files.sunfirerealestate.net/uploads/1/3/1/6/131606133/1904766.pdf
- http://kibet.archvizblender.com/uploads/1/3/1/4/131482995/4140338.pdf
- http://tuben.agdersymfoniorkester.com/uploads/1/3/1/3/131383483/ffc895135.pdf
- http://rizula.secondcreekmdpfhad.com/uploads/1/3/0/8/130814310/vilalufukejiru-kededo-ravojejufu-panozazajajube.pdf
- http://files.rishar.com/uploads/1/3/0/7/130738620/4b55b83.pdf
- https://cdn.shopify.com/s/files/1/0434/3490/1671/files/weraliwakedojewanofaj.pdf
- https://cdn.shopify.com/s/files/1/0428/8924/8927/files/85910934250.pdf
- https://cdn.shopify.com/s/files/1/0430/8910/0951/files/32270732571.pdf
- https://cdn.shopify.com/s/files/1/0431/8360/3873/files/19513734781.pdf
- https://cdn.shopify.com/s/files/1/0428/2476/1510/files/crucifixion_or_cruci_fiction_ahmed_deedat.pdf
- https://cdn.shopify.com/s/files/1/0430/2284/4067/files/investigating_biology_laboratory_manual_8th_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/9505/5766/files/20352464165.pdf
- https://cdn.shopify.com/s/files/1/0435/6194/3199/files/79801289900.pdf
- https://cdn.shopify.com/s/files/1/0435/2783/1712/files/xanasixodi.pdf
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/45269965395.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijovosulodomozov.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_off0001d82d.bin0bccfb7ec1b52a73dcd34369f5436415cc54e24b2fc4e11f773c08be85e375d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D82D | 5728 bytes |
font_01_sfnt_off0001eb8e.bind94360ae6ba3a7217e878d7976cce694e10a12891c2cc45ee3a86b57f31db67d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EB8E | 16260 bytes |
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