MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains a significant number of embedded links. One of these links, 'https://ttraff.cc/pify?keyword=dls+18+buttons', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a link farm or redirection scheme. The primary attack pattern appears to be the distribution of malicious links disguised within a PDF 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=dls+18+buttons
- http://files.leroyvfw.com/uploads/1/3/1/4/131410158/vabuluni.pdf
- http://files.anniepoole.com/uploads/1/3/0/8/130813413/3048650.pdf
- https://cdn.shopify.com/s/files/1/0429/8627/4967/files/mikalamuvetowigaw.pdf
- https://cdn.shopify.com/s/files/1/0427/8580/0358/files/nikiwubateworaferuraril.pdf
- https://cdn.shopify.com/s/files/1/0438/4122/4861/files/mimazujudamapewip.pdf
- https://cdn.shopify.com/s/files/1/0434/3401/6924/files/zovomupopavatawiw.pdf
- https://cdn.shopify.com/s/files/1/0430/0718/0954/files/84340162386.pdf
- https://cdn.shopify.com/s/files/1/0432/5657/8212/files/xenomanezumegefofepexatik.pdf
- https://cdn.shopify.com/s/files/1/0432/7332/2664/files/12560091690.pdf
- https://cdn.shopify.com/s/files/1/0438/5059/6512/files/sumewenofuk.pdf
- https://cdn.shopify.com/s/files/1/0430/8205/5842/files/rejibizapob.pdf
- https://cdn.shopify.com/s/files/1/0432/4638/7367/files/nejenipukapudaxurilani.pdf
- https://cdn.shopify.com/s/files/1/0432/5765/9560/files/21857781118.pdf
- https://cdn.shopify.com/s/files/1/0428/6955/5356/files/academic_advisor_cover_letter.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_off0000659d.bin0d1bd46e6b21dfdb3235045af45c0a9f4ae4549410a96228fa7a56f62bca54c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x659D | 4756 bytes |
font_01_sfnt_off000075de.binf4d017f181fc6b4d7f4a6ad35a3ab5aee23f607b39aa10cfb4428d5657319b15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75DE | 11348 bytes |
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