MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The primary attack vector appears to be luring users to click on malicious links within the document.
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.cc/pify?keyword=connect+4+shots+instructions+pdf
- http://files.1210photography.com/uploads/1/3/2/7/132740900/1579119.pdf
- http://files.opunakesurflifesaving.com/uploads/1/3/0/8/130814513/gezitowejukejekojuko.pdf
- http://files.kitimatsnowvalleyskatingclub.com/uploads/1/3/0/9/130969700/duralodeg_remujevizokaw_lidobun.pdf
- https://cdn.shopify.com/s/files/1/0431/5827/4205/files/pivukakotimexe.pdf
- https://cdn.shopify.com/s/files/1/0433/4098/8575/files/komagobinuse.pdf
- https://cdn.shopify.com/s/files/1/0432/0762/2817/files/voputubumimum.pdf
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/27396872350.pdf
- https://cdn.shopify.com/s/files/1/0433/0281/3849/files/55339415632.pdf
- https://cdn.shopify.com/s/files/1/0435/6970/9217/files/xudipajabosubigijel.pdf
- https://cdn.shopify.com/s/files/1/0429/3787/6639/files/50002890350.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/17705061883.pdf
- https://cdn.shopify.com/s/files/1/0431/1983/7346/files/logugaxajuxobunopawup.pdf
- https://cdn.shopify.com/s/files/1/0440/7348/4438/files/68513102196.pdf
- https://cdn.shopify.com/s/files/1/0435/4713/2068/files/42065978724.pdf
- https://cdn.shopify.com/s/files/1/0431/7272/4885/files/61217950814.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/
- https://cdn.shopify.com/s/files/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c8c.bin4c1f87b6e1730e44a1ac4485de7f807d0931eb490a567b709961223e3793cf36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C8C | 4992 bytes |
font_01_sfnt_off00006d84.bin4730e83b9ac937f701327faaa931a73fc928fc8c9695fc0f4cad94636e9c3bfa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D84 | 9964 bytes |
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