MALICIOUS
144
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass of external links, many of which are algorithmically generated and point to PDF files, suggesting a link farm or a mechanism for distributing further malicious content. The document body text, though partially corrupted, includes 'Usps priority mail include insurance', indicating a lure to trick users into clicking on the provided links. The presence of numerous external URIs and the ML classifier's high confidence score strongly suggest malicious intent, likely leading to phishing or malware download.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://allamericanhandyman.org/uploads/1/3/0/8/130813400/130813400.html#usps+priority+mail+include+insurance
- http://treredbeats.com/uploads/1/3/0/6/130620948/sidelo.pdf
- http://noradavis.net/uploads/1/3/0/7/130739011/7279694.pdf
- http://chanisehurst.com/uploads/1/3/0/7/130776229/9351738.pdf
- http://mx.cochrantonfair.org/uploads/1/3/0/7/130738972/8488963.pdf
- http://www.fiestasyeventoscristal.com/uploads/1/3/0/6/130639117/zuxuliv_gumiwopowoga_lomejeditem_dakofukuzixur.pdf
- http://johncwitt.com/uploads/1/3/0/6/130621498/59b703e6dcd7.pdf
- http://chaselea.co.uk/uploads/1/3/0/7/130775756/24ca5.pdf
- http://americantheaterforpuppetryarts.org/uploads/1/3/0/4/130476616/1d9243ab391ca.pdf
- http://shopsanctuarymtk.com/uploads/1/3/0/8/130814172/joxananizebuwatij.pdf
- http://bloordaleblog.com/uploads/1/3/0/5/130588299/1307160102f3.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 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006aa5.bin84266ab9e8effb175c9b730d54a5ded94117a2f4cb38cad4fb132780fd070b9e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA5 | 8256 bytes |
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