MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document exhibits characteristics of a link farm, with a high number of embedded URLs pointing to external PDF files. The ML classifier strongly indicates maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of numerous external links. The document body contains garbled text and a reference to 'Death note l change the world novela', suggesting a lure or obfuscation tactic.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://weightedword.com/uploads/1/3/0/5/130588803/130588803.html#death+note+l+change+the+world+novela
- http://thomascoke.net/uploads/1/3/0/9/130969475/ledasuteze.pdf
- http://xiarawellness.org/uploads/1/3/1/4/131407494/difesud_satirexo_mujujorolo.pdf
- http://lecorbeauwoodworking.com/uploads/1/3/1/3/131384016/bonovuwox.pdf
- http://ottawaresidentialcommercialexteriors.ca/uploads/1/3/0/7/130738546/nojukofakopid-pebiwas-rulurutadifase-kulodonanivig.pdf
- http://nepservicesinc.com/uploads/1/3/1/3/131398235/tiwuzaniv-rorosiwe-kopisoxukebu.pdf
- http://itschristinechun.com/uploads/1/3/1/4/131455247/5d3d85d.pdf
- http://elmerlexmond.com/uploads/1/3/0/6/130639021/vepiridoxegox_tenike.pdf
- http://umoremio.com/uploads/1/3/0/7/130739646/22192304647.pdf
- http://cweventstaff.com/uploads/1/3/0/5/130543006/bupijarudisexar.pdf
- http://tabletopmatters.com/uploads/1/3/0/6/130639098/lolufazure.pdf
- http://laverneontap.com/uploads/1/3/1/0/131071309/rotided.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/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062ec.bin31987313fa9e3afbf706d2b1ca93c6b4f1cbb00b91b1f3c8aab68f57fb48267c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62EC | 9692 bytes |
font_01_sfnt_off00008300.bin779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8300 | 16036 bytes |
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