MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an 'assurance engagement pdf' and includes the malicious URL. This indicates a phishing attempt to redirect users to malicious infrastructure.
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=assurance+engagement+pdf
- http://files.asacottrelldar.org/uploads/1/3/1/3/131398066/29d3d713096556f.pdf
- http://files.mildlyadventurous.com/uploads/1/3/0/7/130775171/8081846.pdf
- http://files.gileadtimber.com/uploads/1/3/1/4/131437806/7131442.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/4229/0336/files/68850897868.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopeg.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
- https://cdn.shopify.com/s/files/1/0435/8042/4351/files/busch_gardens_tampa_map_2020.pdf
- https://cdn.shopify.com/s/files/1/0438/3319/6706/files/kukozemuxadojejurokipoma.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdf
- https://cdn.shopify.com/s/files/1/0433/4397/0463/files/49262298245.pdf
- https://cdn.shopify.com/s/files/1/0437/0530/3205/files/69247544180.pdf
- https://cdn.shopify.com/s/files/1/0433/7431/3621/files/kifulajujiromet.pdf
- https://cdn.shopify.com/s/files/1/0430/5348/2138/files/kebixesexonebesi.pdf
- https://cdn.shopify.com/s/files/1/0433/1234/9334/files/kozizegitizowa.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_off00005d18.bin1b48b6594f6efb3d4a2a667a5922fd71a550edba8681b23142680c6382751879 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D18 | 5432 bytes |
font_01_sfnt_off00006f7f.bin030064c0dd65173c4faed48b8b4fd08f049819a7bcbdda68711d87766fa80cc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F7F | 10180 bytes |
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