MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by an ML classifier and contains a significant number of embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm strategy. The primary attack vector appears to be leveraging these links for malicious redirection.
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/wb?keyword=baptist%20faith%20and%20message%201925.%20pdf
- http://files.1stgengenealogy.com/uploads/1/3/2/7/132741348/5797621.pdf
- http://masamab.thegivingtreefarm.com/uploads/1/3/2/6/132682989/4776928.pdf
- http://files.acousticharvest.ca/uploads/1/3/0/7/130775387/liganug.pdf
- http://files.launasorensen.com/uploads/1/3/0/7/130739718/kelikota_tubowu_rumesefamewu_fifofomoxusenu.pdf
- https://cdn.shopify.com/s/files/1/0433/3276/3801/files/93182836160.pdf
- https://cdn.shopify.com/s/files/1/0430/7759/9383/files/amor_liquido_bauman.pdf
- https://cdn.shopify.com/s/files/1/0432/6440/9764/files/54219370559.pdf
- https://cdn.shopify.com/s/files/1/0437/6795/5610/files/99768637434.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62654677968.pdf
- https://cdn.shopify.com/s/files/1/0437/9960/9505/files/ancient_egypt_state_and_society.pdf
- https://cdn.shopify.com/s/files/1/0434/6786/6278/files/zufoxadevigijisaxebu.pdf
- https://cdn.shopify.com/s/files/1/0437/8837/0077/files/68839868189.pdf
- https://cdn.shopify.com/s/files/1/0430/7743/5556/files/zofoberalumixepedusoder.pdf
- https://cdn.shopify.com/s/files/1/0437/8991/0165/files/majodofasabugodijov.pdf
- https://cdn.shopify.com/s/files/1/0429/3427/2163/files/neoliberalism_in_latin_america.pdf
- https://cdn.shopify.com/s/files/1/0437/0386/1401/files/zegujexukutobonadoduz.pdf
- https://cdn.shopify.com/s/files/1/0432/7777/9100/files/xewapixuw.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_off0000a5d3.binac9123a4200fe5299a9dd318b8f6346570fc0eebab4e08a8854a3fea4b20f537 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5D3 | 5872 bytes |
font_01_sfnt_off0000b9b3.bin58497bf06eeb20bb034da4ff3362988a5216304c97bdb92430abffdb7910d52e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9B3 | 9876 bytes |
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