MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a link farm, with one prominent URL pointing to a malicious redirector. The primary attack pattern involves luring users through these links, likely to a phishing or malware download site.
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=the+brothers+grimm+spectaculathon+one+act+pdf
- http://mejot.pleaseinsertgame.com/uploads/1/3/1/0/131070387/9793c66.pdf
- http://salagixem.btplacoe.com/uploads/1/3/1/1/131164366/joxunabobopuso.pdf
- http://files.holisticblessingsoflove.com/uploads/1/3/1/4/131407459/c68058f1.pdf
- http://files.dcsq.org/uploads/1/3/1/3/131383630/kixogibotovex_sepajemusarad.pdf
- https://cdn.shopify.com/s/files/1/0430/3529/5905/files/88482310881.pdf
- https://cdn.shopify.com/s/files/1/0435/1783/7480/files/81288215819.pdf
- https://cdn.shopify.com/s/files/1/0434/2353/1158/files/presbyterian_healthcare_services_annual_report_2018.pdf
- https://cdn.shopify.com/s/files/1/0436/5513/5390/files/jurnal_bivalvia.pdf
- https://cdn.shopify.com/s/files/1/0432/5713/5257/files/bronkiektasis_pdpi.pdf
- https://cdn.shopify.com/s/files/1/0431/0076/6369/files/dutijidida.pdf
- https://cdn.shopify.com/s/files/1/0434/9784/8996/files/mukigefuf.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/63872750275.pdf
- https://cdn.shopify.com/s/files/1/0428/4085/0598/files/52553211172.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_off00004d69.bina5c5e09ef1f2a053b22ba99ec5a978efa398f65e8f30095cab27e0db8fd3d942 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D69 | 5660 bytes |
font_01_sfnt_off0000607d.bin6a062219c1a522319c3ccde387d2913360d45cc534e2f7d65bcf5a5bce889c7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x607D | 9752 bytes |
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