MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with the primary link directing to a known malicious redirector. The document body, though partially corrupted, includes the text 'Acknowledgement letter example pdf' and the malicious URL, suggesting a social engineering lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or malware distribution attempt. No scripts were extracted from this sample.
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.com/pify?keyword=acknowledgement+letter+example+pdf
- http://files.craigleacapetown.com/uploads/1/3/1/8/131871569/4a8692675f1c.pdf
- http://files.zimengmusic.com/uploads/1/3/0/7/130775998/xemaleva.pdf
- http://tuwepirot.divotees.co.uk/uploads/1/3/1/3/131380729/pedotefef_wuweti.pdf
- http://files.connectingcasualstops.com/uploads/1/3/1/8/131856602/tikovivalenebupavu.pdf
- http://files.cottageglen.net/uploads/1/3/1/0/131070294/rebaxabexewasogiz.pdf
- https://cdn.shopify.com/s/files/1/0431/9005/9157/files/6389295860.pdf
- https://cdn.shopify.com/s/files/1/0439/0027/2792/files/ca_dmv_reg_262.pdf
- https://cdn.shopify.com/s/files/1/0434/1855/0430/files/73616253848.pdf
- https://cdn.shopify.com/s/files/1/0439/6164/7262/files/68986032742.pdf
- https://cdn.shopify.com/s/files/1/0437/0163/3177/files/amelia_bedelia_for_mayor.pdf
- https://cdn.shopify.com/s/files/1/0428/3816/3623/files/11211550194.pdf
- https://cdn.shopify.com/s/files/1/0431/7144/6939/files/zinijubefewiwudov.pdf
- https://cdn.shopify.com/s/files/1/0431/3559/8758/files/31492217413.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdf
- https://cdn.shopify.com/s/files/1/0431/2065/6545/files/76324678247.pdf
- https://cdn.shopify.com/s/files/1/0433/5733/9816/files/pdf_to_word_editable_converter_download.pdf
- https://cdn.shopify.com/s/files/1/0430/7258/5881/files/mavisomus.pdf
- https://cdn.shopify.com/s/files/1/0429/6219/0499/files/3556093534.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_off00006aa2.bin45d9fe3998bcb9be292c98de99f3b4dfae55af3c32fd24d89c126c76c2a15d69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA2 | 5512 bytes |
font_01_sfnt_off00007d6b.bina3d6bcb8d1587b505cde9bcf41874b55ee01e47996090a7f6d0326cc463c6006 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D6B | 9884 bytes |
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