MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by multiple critical heuristics for containing malicious redirector links and being part of a link farm. The embedded URL `https://ttraff.ru/wix?keyword=how+do+i+balance+na3po4+koh%253Dnaoh+k3po4` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware site. While no scripts were extracted, the PDF structure and link farm indicate a delivery mechanism for malicious content.
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/wix?keyword=how+do+i+balance+na3po4+koh%253Dnaoh+k3po4
- https://static.usrfiles.com/ugd/34e21e_457e3b9a24004585aa953d4086d3fee6.pdf
- https://static.usrfiles.com/ugd/a771bd_eded998cc4784a878fb2cc4339f16f7f.pdf
- https://static.usrfiles.com/ugd/8b9728_c69b286e75ab4d6597bca1f5ac9ea5d9.pdf
- https://static.usrfiles.com/ugd/cf14a4_e62e8d7f10fe46788e13574747f128a9.pdf
- https://cdn.shopify.com/s/files/1/0459/9942/3647/files/edureka_informatica_installation_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/capacity_assessment_form_2.pdf
- https://cdn.shopify.com/s/files/1/0465/1125/9798/files/fegenono.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdf
- https://static.usrfiles.com/ugd/b8c837_f1c3366a4d0b44228f80c18f67190123.pdf
- https://static.usrfiles.com/ugd/b8c837_cc77888b63c54c609c48469be275e08c.pdf
- https://static.usrfiles.com/ugd/c1108c_908ee0002f0e4191aacad66d10bdf635.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_off00004064.bin3b35bcf770a405dc9a1dd93903447792abbc2c583db56f8bd11c7c1f60155d4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4064 | 5444 bytes |
font_01_sfnt_off000052f7.bin71e6329c225807f83742dba2302cae52e1ee5e44b01a9b2a9fed9533d2ceb120 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52F7 | 9240 bytes |
font_02_sfnt_off000072b6.binbc17322cb50b3825c55e3c9956a3c2e0ec6085024a9d25d8b4ad52c9a8960742 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72B6 | 16256 bytes |
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