MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document exhibits characteristics of a link farm, with a high density of external URLs pointing to various domains. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous PDF_SEO_LINK_FARM heuristics indicates a deliberate attempt to create a network of linked documents. The primary attack pattern appears to be directing users to potentially malicious external sites through these links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://lastfrontiermusic.com/uploads/1/3/1/4/131407355/131407355.html#cutoff+for+skewness+and+kurtosis
- http://affordablrides.net/uploads/1/3/0/8/130813945/8019376.pdf
- http://myfourleaf.com/uploads/1/3/0/5/130590678/namirojopu.pdf
- http://therightofway.org/uploads/1/3/0/2/130271211/8d9c22a8c05.pdf
- http://www.everythingnotes.com/uploads/1/3/0/8/130813750/9730483.pdf
- http://www.emilyhannacrane.com/uploads/1/3/0/6/130604694/viwavo_naxuwit_befolaku.pdf
- http://rochestersportsfan.com/uploads/1/3/0/8/130814360/nomopa_dewamusefe_lalobuxo_visixegoja.pdf
- http://precisionfabandrefurbishing.com/uploads/1/3/0/8/130873903/jazarasag.pdf
- http://getinvolvedpa.com/uploads/1/3/0/4/130436162/1966995.pdf
- http://mariewithak.com/uploads/1/3/0/9/130969800/didezum-reluxaxovu.pdf
- http://livebake.com.au/uploads/1/3/0/9/130969477/12b91d88451739c.pdf
- http://amberwaugaman.com/uploads/1/3/0/3/130313293/tixepajoruvelupe.pdf
- http://www.lify.ca/uploads/1/3/0/9/130970012/fa095.pdf
- http://mochasandjavas.net/uploads/1/3/0/6/130604213/78f5f9bcb.pdf
- http://srzlending.com/uploads/1/3/1/1/131163660/6539724.pdf
- http://sadfoxhack.com/uploads/1/3/0/6/130639573/fosot.pdf
- http://footietransfers.com/uploads/1/3/0/5/130539696/5077360.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b054.bin5078d48628ca1ff5537a576b1d9927f35a5f231807a196295a929619815155b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB054 | 10804 bytes |
font_01_sfnt_off0000d77e.bin1c7ff029bd9d9cebc57195580dfb72f3516e9cb9b77239a440803da7405f4a2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD77E | 3864 bytes |
font_02_sfnt_off0000e49a.bin72f6c90a647263d95168bc239a0e3a28e9b8c1aa6ce727412127635dc434b30a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE49A | 16060 bytes |
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