MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though obfuscated, appears to be a lure related to 'how to make paper butterfly step by step instructions', which is likely a pretext to drive traffic to malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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 https://jacksth.ru/wb?keyword=how%20to%20make%20paper%20butterfly%20step%20by%20step%20instructions PDF link annotation
- https://cdn-cms.f-static.net/uploads/4483089/normal_603b923c297f9.pdfIn PDF document text
- https://pubetazona.weebly.com/uploads/1/3/4/5/134584774/zexopubasate_sufamizej.pdfIn PDF document text
- https://gexaxiwiwa.weebly.com/uploads/1/3/4/4/134480231/xusibo.pdfIn PDF document text
- https://japapetokanov.weebly.com/uploads/1/3/1/4/131454126/kulirume.pdfIn PDF document text
- https://gedenotovet.weebly.com/uploads/1/3/1/3/131379555/bc4f668d9d0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381532/normal_5ffe42e68c591.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420765/normal_605d153ac82ab.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415292/normal_5fcebfcc43381.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449615/normal_604859465e278.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366630/normal_5fc86638c5595.pdfIn PDF document text
- https://tebugusenaj.weebly.com/uploads/1/3/4/8/134870623/vubovajadakijarepo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490367/normal_605946decc6e6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387420/normal_600debcf5fedb.pdfIn PDF document text
- https://jazebaza.weebly.com/uploads/1/3/4/6/134662006/siwosejivapo-posakerapig-makefototo.pdfIn PDF document text
- https://sizamuvexiluti.weebly.com/uploads/1/3/4/6/134644091/55abea0bba.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4478133/normal_5fed6bb0d2963.pdfIn PDF document text
- https://biwoponafi.weebly.com/uploads/1/3/4/7/134767969/fosafodawopob.pdfIn PDF document text
- https://ruzizoradum.weebly.com/uploads/1/3/4/3/134317959/gagoxaveduxi_salefarujawu.pdfIn PDF document text
- https://lonopowixeza.weebly.com/uploads/1/3/4/6/134620564/rojexedomap_xajewulos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4498345/normal_600c3d02f09bd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/kovezux/pet_adoption_papers.pdfIn PDF document text
- https://s3.amazonaws.com/fodose/dubsmash._com_free_app.pdfIn PDF document text
- https://s3.amazonaws.com/wefemabeni/meribojisamagerasa.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
- 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_off0000ccce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCCE | 5520 bytes |
SHA-256: 146b3d742bb94f3117bfbf09b4acde1900248f638946551645f79df0b060a99f |
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font_01_sfnt_off0000df8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF8C | 9592 bytes |
SHA-256: 88f63b91129ac31cb91eeb5ce15f288654732df34d2eae2ba66910cb69692020 |
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