MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document employs a lure by claiming to be a PDF editor, while embedding a large number of external links. These links point to other PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of numerous external links designed to appear as search engine results. No scripts were extracted, but the extensive link farm indicates a likely attempt to drive traffic or distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://vpgrou.brdge.org/uploads/1/3/1/3/131380725/131380725.html#the+best+pdf+editor PDF link annotation
- http://vida-florida.org/uploads/1/3/1/6/131606588/9614713.pdfIn PDF document text
- http://msksjewelryboutique.com/uploads/1/3/0/7/130775545/4e3f0e1a40.pdfIn PDF document text
- http://kampuslandinc.com/uploads/1/3/1/3/131383352/peviwevuwatini.pdfIn PDF document text
- http://allimaccomputers.com/uploads/1/3/0/5/130589337/dcc935c.pdfIn PDF document text
- http://general1948.com/uploads/1/3/1/3/131383383/1453577.pdfIn PDF document text
- http://icgpainting.com/uploads/1/3/1/4/131438216/zenesalu_nutevoz_mugakotanaxobi.pdfIn PDF document text
- http://maumahara.co.nz/uploads/1/3/0/7/130740264/kokibopabunab_jolojuzoru_sezakilevoxu_biwezodukolafu.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_off00005654.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5654 | 4660 bytes |
SHA-256: 294da8d88045585592a80586a6816c7b05b705b9111c034e120c40537fae3c80 |
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font_01_sfnt_off00006635.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6635 | 10112 bytes |
SHA-256: 839156e1f7e9f3ec754bceff033aee3bdf9c293fae111ac420c43235a77acf77 |
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