MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body text, though partially corrupted, indicates a lure related to a 'follow directions trick worksheet'. No scripts were extracted, but the heuristic firings strongly suggest a link farm attack pattern. The primary IOCs are the numerous external URLs embedded within the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://kentuckyarttherapyassociation.org/uploads/1/3/0/5/130544811/130544811.html#follow+directions+trick+worksheet PDF link annotation
- http://vishaalenterprises.com/uploads/1/3/1/3/131383204/8538fc035d4b0a.pdfIn PDF document text
- http://beplaydate.com/uploads/1/3/0/2/130271128/2777162.pdfIn PDF document text
- http://host38.carmichaelnl.com/uploads/1/3/0/8/130873990/2dc527d402b58.pdfIn PDF document text
- http://waasinmi.com/uploads/1/3/0/2/130273872/pakimigotod.pdfIn PDF document text
- http://thisoklahome.com/uploads/1/3/0/4/130491599/495807.pdfIn PDF document text
- http://2mogulstravel.com/uploads/1/3/1/6/131637140/romotesuxabadoj_gizul_xudisamoxaxew_xezesewovi.pdfIn PDF document text
- http://mail.sebolt.com/uploads/1/3/0/2/130288394/3555908.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004b71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B71 | 4716 bytes |
SHA-256: 43fdb9e538b290960f1881262849cfac029a880ad6028435edd0c3296d67401a |
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font_01_sfnt_off00005b78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B78 | 10444 bytes |
SHA-256: 8b5f1d069e9610c876314ca7571197637715eeffed01de7f0c670e43d3e98fd8 |
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