MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/wb?keyword=load%20balancing%20algorithms%20pdf'. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent. The document body, though heavily obfuscated, appears to contain URLs that are part of this link farm, suggesting a social engineering lure to drive traffic to malicious sites.
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/wb?keyword=load%20balancing%20algorithms%20pdf
- http://bubugew.mindyjunekelly.com/uploads/1/3/2/3/132303382/zemulazulafe.pdf
- http://tuxewotuw.vacationsbycarla.com/uploads/1/3/2/8/132816202/2766052.pdf
- http://files.wofcca.org/uploads/1/3/1/0/131070539/4ef47ada.pdf
- https://cdn.shopify.com/s/files/1/0428/3128/2335/files/liwetazugojodabiparari.pdf
- https://cdn.shopify.com/s/files/1/0437/8548/6485/files/79560967961.pdf
- https://cdn.shopify.com/s/files/1/0432/6182/1092/files/sinijefofivolakuj.pdf
- https://cdn.shopify.com/s/files/1/0427/5961/8716/files/xagawugu.pdf
- https://cdn.shopify.com/s/files/1/0429/9243/5359/files/english_syntax_analysis.pdf
- https://cdn.shopify.com/s/files/1/0440/6660/3158/files/28459808482.pdf
- https://cdn.shopify.com/s/files/1/0436/2836/3939/files/54137733091.pdf
- https://cdn.shopify.com/s/files/1/0438/0911/2226/files/82131486578.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdf
- https://cdn.shopify.com/s/files/1/0433/3889/1419/files/ncert_class_11_biology_full_book.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_off0000613a.bin87a1f3786f95c59e5c11c2f206e8f3918fef6e14d5487241b57a74f8f877a98d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x613A | 5652 bytes |
font_01_sfnt_off00007442.bin13863f47869d9d065dd7ec8fafa1cca67075fd867d054d060b2adee61a7c5c3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7442 | 10012 bytes |
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