MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, indicating a malicious intent to distribute malware or phish users. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.com/wb?keyword=theories%20of%20communication%20skills%20pdf, which appears to be part of a SEO poisoning campaign.
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=theories%20of%20communication%20skills%20pdf
- http://files.asproengineering.com/uploads/1/3/1/8/131856877/nepusikiguvopoge.pdf
- http://files.preptour.com/uploads/1/3/2/8/132814239/60f2958cc5a0.pdf
- http://files.centelmedia.us/uploads/1/3/2/7/132740692/8a927a.pdf
- http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdf
- http://files.goplaysport.co/uploads/1/3/0/8/130813668/fitufijusugasen_voxufela.pdf
- http://files.hlfmgoats.com/uploads/1/3/1/3/131383553/jopaxubesoz.pdf
- http://files.jasmafusioncuisine.com/uploads/1/3/1/3/131381722/9254902.pdf
- http://files.teamstudy.org/uploads/1/3/2/6/132695574/pasupa.pdf
- http://files.dizzycoach.com/uploads/1/3/0/8/130874129/redesoba-xurun.pdf
- https://pimujapuza.files.wordpress.com/2020/07/93655581099.pdf
- https://vebujurus.files.wordpress.com/2020/07/34547533850.pdf
- https://foxiwip.files.wordpress.com/2020/06/83051260727.pdf
- https://ratuwig.files.wordpress.com/2020/06/45013066936.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_off0000643d.bin24798e6617a39f0264df6621c99d0ebda66cd1c7af2c03c08369c592f46b89be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x643D | 5292 bytes |
font_01_sfnt_off0000760a.bin882ca70b20520f4d950fb0ee3d1125824f8db3a575aefa5de0b4aa8661b551dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x760A | 9460 bytes |
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