MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a large number of external links, many of which are numerically or generically named PDFs hosted on various domains. The document body text, though heavily obfuscated, contains a reference to 'Brother mfc-j625dw wifi setup', suggesting a lure to trick users into clicking these links. The heuristic 'PDF_SEO_LINK_FARM' indicates a pattern of creating numerous links to potentially malicious or spam content. The primary IOC is the first external URI found, which also contains a lure related to printer setup.
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://caressofhappiness.com/uploads/1/3/0/6/130620455/130620455.html#brother+mfc-j625dw+wifi+setup PDF link annotation
- http://50klawn.net/uploads/1/3/0/6/130604877/9846057.pdfIn PDF document text
- http://stonefieldcottage.com/uploads/1/3/0/5/130588412/rezufusoxefatudip.pdfIn PDF document text
- http://stefanierothert.com/uploads/1/3/0/5/130590200/zejanetu.pdfIn PDF document text
- http://sparklyhealthandlove.com/uploads/1/3/0/3/130323454/vikaxopimuge_nimef_kalewodewiwab_padipowe.pdfIn PDF document text
- http://canyoncitygrill.com/uploads/1/3/0/2/130289682/8224630.pdfIn PDF document text
- http://mcbcyork.org/uploads/1/3/0/7/130739971/lununanexavulin.pdfIn PDF document text
- http://janicehicks.com/uploads/1/3/0/7/130739061/mutipe.pdfIn PDF document text
- http://sunniecorners.net/uploads/1/3/0/8/130874272/fikene.pdfIn PDF document text
- http://blackfriday.dng.ie/uploads/1/3/0/7/130776152/9132682.pdfIn PDF document text
- http://georginaamyeventcoordination.com/uploads/1/3/1/3/131379312/4180190.pdfIn PDF document text
- http://thegiltwins.com/uploads/1/3/0/5/130589114/784726.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68FC | 7856 bytes |
SHA-256: 53c78ac86a88c345592f4a7aac52502d9f6c07e23edb17a0128c363917299040 |
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