MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous external links, many of which point to other PDF files hosted on unrelated domains, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, contains text related to drawing a butterfly and mentions wkhtmltopdf, indicating it might be a lure to disguise malicious links. The ML classifier strongly flagged this PDF as malicious, and the presence of many external URIs supports a malicious intent to redirect users to potentially harmful content.
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://adsl-63-204-18-60.benefitplans.org/uploads/1/3/1/4/131437940/131437940.html#metamorfosis+de+una+mariposa+para+dibujar PDF link annotation
- http://yuanhl.com/uploads/1/3/0/4/130476581/kumuforexare-bowuporewo.pdfIn PDF document text
- http://mennalaw.com/uploads/1/3/0/6/130639092/kupezo.pdfIn PDF document text
- http://nvui.org/uploads/1/3/0/3/130313242/9794134.pdfIn PDF document text
- http://sometimesagirlsjustgotta.com/uploads/1/3/1/1/131164171/3554778.pdfIn PDF document text
- http://wearedycon.com/uploads/1/3/0/5/130543276/gajugosofuk.pdfIn PDF document text
- http://artsforactfineartauction.com/uploads/1/3/1/3/131383269/meruwal-ruxeno-bipotulebur-bolebalafesuze.pdfIn PDF document text
- http://bigcitystrangers.com/uploads/1/3/0/5/130542866/67061eb3fbe812.pdfIn PDF document text
- http://lighthouseyarn.com/uploads/1/3/0/6/130605074/zozudupijav_mubol_dasupukufowo.pdfIn PDF document text
- http://thegoudreaugroup.com/uploads/1/3/0/8/130813668/nazerad.pdfIn PDF document text
- http://regalbathandbody.com/uploads/1/3/0/5/130551434/tokubogudu.pdfIn PDF document text
- http://elizabethknaubviola.com/uploads/1/3/0/6/130620209/sofesemid.pdfIn PDF document text
- http://starfruitdigital.com/uploads/1/3/0/7/130776854/7978208.pdfIn PDF document text
- http://milieu-art.com/uploads/1/3/1/0/131071299/napeti.pdfIn PDF document text
- http://besideyou.love/uploads/1/3/1/0/131070307/2ed78dd5.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
🗂 Part of campaign:
bigcitystrangers.com
6 samples
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000933f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x933F | 8088 bytes |
SHA-256: b05b53e164b28e397ef351f24ee679b05375c95d37789d49892760456e31a585 |
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