MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment
T1204.002 Malicious File:Malicious PDF
The PDF file contains a large number of external links, many of which point to other PDF files on various domains. The document body text suggests it is a worksheet, which is likely a lure to encourage users to click on the embedded links. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external link farm, suggesting a malicious intent to manipulate search engine results or distribute malicious content through a network of seemingly innocuous documents. No scripts were extracted, limiting the analysis of direct payload delivery.
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://kalajarvenlomakyla.fi/uploads/1/3/1/4/131408224/131408224.html#invariable+nouns+worksheet PDF link annotation
- http://wikiwakie.com/uploads/1/3/0/7/130738962/3e3a24d23b8b4c.pdfIn PDF document text
- http://skyaeros.com/uploads/1/3/0/8/130813639/sawinawuwesewemaw.pdfIn PDF document text
- http://mmastrorilliciv.com/uploads/1/3/0/5/130551366/6262713.pdfIn PDF document text
- http://kingsspeechpathologyclinic.net/uploads/1/3/1/6/131606619/3027970.pdfIn PDF document text
- http://iyildirim.com/uploads/1/3/1/4/131436981/7beb0b.pdfIn PDF document text
- http://diametricsgroup.com/uploads/1/3/1/4/131454522/11f7810b57f2a8.pdfIn PDF document text
- http://chengclinic.org/uploads/1/3/0/5/130539309/6989212.pdfIn PDF document text
- http://coldspringscampresort.info/uploads/1/3/0/5/130539846/9e277.pdfIn PDF document text
- http://thebrennermans.com/uploads/1/3/1/4/131453321/6476719.pdfIn PDF document text
- http://wagnercottonwedding.com/uploads/1/3/0/7/130775342/zuratuwosuw-tupubipujuk.pdfIn PDF document text
- http://maxineworthy.com/uploads/1/3/0/7/130775084/801f1aa8fcd4.pdfIn PDF document text
- http://slantrobotics.com/uploads/1/3/0/7/130740462/saxebufo-nologa-difepujot-gilulexo.pdfIn PDF document text
- http://beamersbuddies.org/uploads/1/3/1/4/131406013/fbdaa6a.pdfIn PDF document text
- http://carpetcleaning719.com/uploads/1/3/0/5/130588484/8714527.pdfIn PDF document text
- http://gastoniapestpros.com/uploads/1/3/0/7/130775241/cd4e97b.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
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000070f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F1 | 8508 bytes |
SHA-256: d0ea697c51695354394f2dfc85fb0a0a70340c3fac764e01ba2ed2bd687b9253 |
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font_01_sfnt_off000091de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91DE | 2652 bytes |
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea |
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font_02_sfnt_off00009b47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B47 | 16208 bytes |
SHA-256: 5f95318943fcfbd77322bbb5cad315370152876080c91ba93f69ac7a8b13a41a |
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