MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external PDF files. The primary malicious URL identified is https://ttraff.ru/wb?keyword=tok%20knowledge%20questions%20language, which is likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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/wb?keyword=tok%20knowledge%20questions%20language
- http://levison.1boxonline.com/uploads/1/3/0/9/130969177/4406614.pdf
- http://rojaf.warnercpa.com/uploads/1/3/1/8/131857914/jibasepowilef_padugedavoned_lebur.pdf
- https://4ce39e3d-6b22-471e-a353-f68c51743d81.filesusr.com/ugd/952c2e_d06383dd106a45dbafcdada59a188de6.pdf?index=true
- https://4d99453a-4d26-410e-a884-c7db60ddbf8e.filesusr.com/ugd/65d6f7_9c1c1fc6c5e343e691d3442ec073a076.pdf?index=true
- https://d70cc2a7-a5ab-4dec-baae-41aaae0ed4fb.filesusr.com/ugd/f5a024_275a40de2d1944e384fe32317c331445.pdf?index=true
- https://0537186e-c5b0-4eb8-a77f-c448cce705d4.filesusr.com/ugd/f95141_8cc90cade5094d099e34fd5e9790fe25.pdf?index=true
- https://b6c83285-9105-44d9-a5e3-a32327039d6f.filesusr.com/ugd/6c313a_e4b3ab752c6d43e4b36024118d54c4fc.pdf?index=true
- https://cf845a0f-ad6f-430e-9a54-7acbac65cf46.filesusr.com/ugd/b42fd6_bdcb4dd841bf4883a06791b05e0172b3.pdf?index=true
- https://50e0b28e-e0b0-49bc-bb27-6bfcb2663950.filesusr.com/ugd/5b9365_700ca50f1b894bb1a05fcfa59bf61964.pdf?index=true
- https://831ac3ea-52d4-4aa0-89ea-e3f633929bdc.filesusr.com/ugd/a4d998_932bcd73218247bca5f59bba48b9f5f1.pdf?index=true
- https://74097673-ce90-4614-9d6a-6c8c4158e340.filesusr.com/ugd/50de67_ee9f17e2e6b84882b6cf1acf8bd69bff.pdf?index=true
- https://7e8cb35f-24b4-4a88-97a9-a76943dc785e.filesusr.com/ugd/8aba0c_d7d78307bdc74eb09d2f604dc55dba64.pdf?index=true
- https://fdf6c86e-7401-4e9a-be56-2092d9f221c5.filesusr.com/ugd/a4c1fa_0790fcec7d7340b682e8a02a3571a765.pdf?index=true
- 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_off00007376.bin173e1fbe7cfb179cbaca9148afc2f971b07ab07a2f161dea48b0f6401c20b794 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7376 | 5128 bytes |
font_01_sfnt_off00008509.bin687639cae64ad4f791cf595d55ffaec3894b7b46026febec7dca7b61d543b79e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8509 | 10008 bytes |
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