MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded URLs, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=centos+7+server+guide+pdf'. The document body, though partially corrupted, contains text suggesting a lure related to a 'Centos 7 server guide pdf'. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful 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/pify?keyword=centos+7+server+guide+pdf
- http://files.bigislandghosttours.com/uploads/1/3/2/3/132302759/4390147.pdf
- http://files.bbsimon.com/uploads/1/3/2/6/132682570/tudijimavu.pdf
- http://files.heatherhikes.com/uploads/1/3/0/7/130776674/pabunatox-wosuki-nuzesum-vogewiluwu.pdf
- http://files.idahobluegrassassociation.org/uploads/1/3/0/8/130874050/8422788.pdf
- http://wufaw.talltaleswithpoppynwosu.com/uploads/1/3/1/4/131453177/fumapa-rezojavopugi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/2045/1997/files/56096991692.pdf
- https://cdn.shopify.com/s/files/1/0437/6123/8168/files/toxiromo.pdf
- https://cdn.shopify.com/s/files/1/0434/1576/5148/files/top_cities_in_us.pdf
- https://cdn.shopify.com/s/files/1/0435/7623/0046/files/pandas_select_row_by_index.pdf
- https://cdn.shopify.com/s/files/1/0429/4030/1478/files/57264012115.pdf
- https://cdn.shopify.com/s/files/1/0433/0940/0214/files/missing_return_statement_java.pdf
- https://cdn.shopify.com/s/files/1/0435/1184/0927/files/83987088678.pdf
- https://cdn.shopify.com/s/files/1/0431/1266/1152/files/56980568097.pdf
- https://cdn.shopify.com/s/files/1/0431/6528/6566/files/jufukegaderewawekabokux.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d39.bin634382483d5e896ac4ef45b8b2e4d73af65541a26aac1ec0e94515678f665a38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D39 | 5012 bytes |
font_01_sfnt_off00007e69.bin4e960a8df900f854978eedace6efd94c3d3bdeff2d02c4e461ac72250bb3a6ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E69 | 14232 bytes |
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