MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, identified as a link farm. One critical heuristic indicates these links point to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=milwaukee+brewers+bleacher+report`. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to URLs hosted on `cdn.shopify.com` and other domains, suggesting a lure to a malicious site. The primary attack pattern involves redirecting users through a link farm to a malicious destination.
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=milwaukee+brewers+bleacher+report
- http://files.dataco.ca/uploads/1/3/2/8/132814039/36eb07bfb.pdf
- http://tidutep.rootptandwellness.org/uploads/1/3/1/4/131482995/1137359.pdf
- https://cdn.shopify.com/s/files/1/0431/0515/7282/files/goban.pdf
- https://cdn.shopify.com/s/files/1/0433/4046/4281/files/96404717353.pdf
- https://cdn.shopify.com/s/files/1/0436/0539/3571/files/sukoso.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8428/files/fidesilowejifasuwo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuzizurogepibisomagin.pdf
- https://cdn.shopify.com/s/files/1/0452/5257/5394/files/challenges_of_entrepreneurship_development_in_nigeria.pdf
- https://cdn.shopify.com/s/files/1/0437/9102/4280/files/texaleworat.pdf
- https://cdn.shopify.com/s/files/1/0440/4091/3046/files/25816163111.pdf
- https://cdn.shopify.com/s/files/1/0434/1560/1314/files/wakun.pdf
- https://cdn.shopify.com/s/files/1/0431/4536/3610/files/rojutemoweposoxiratana.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_off00007355.bin2dce6b5789d00eb9a259bf7d8b139366b28cdda84cc3ee71f366258812be9c60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7355 | 5324 bytes |
font_01_sfnt_off00008575.bin4f290afe6d2072c2cb6f25df33a3097e54087a1bb8b18fe57a4ae7b90177e457 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8575 | 10192 bytes |
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