MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://leonvi.ru/123?utm_term=binomial+theorem+worksheet+with+answers PDF link annotation
- https://kojaresojew.weebly.com/uploads/1/3/4/3/134312518/xijekeziv-xotududakem.pdfIn PDF document text
- https://dorijalasenotom.weebly.com/uploads/1/3/5/3/135327318/8819430.pdfIn PDF document text
- https://sejexogubason.weebly.com/uploads/1/3/1/0/131070030/2076112.pdfIn PDF document text
- http://yogistika.space/jakakasekwozz3.pdfIn PDF document text
- https://wobofosowipifir.weebly.com/uploads/1/3/0/7/130776138/eb1cbd.pdfIn PDF document text
- https://purapunebofo.weebly.com/uploads/1/3/4/8/134888030/1179594.pdfIn PDF document text
- http://reestr.site/wow_bfa_cooking_guide33dd7.pdfIn PDF document text
- https://cdn.sqhk.co/kepebeso/0hfRIhi/rechargeable_hand_warmers.pdfIn PDF document text
- http://fakaripeti.xyz/xazebazezisitawopikb8anw.pdfIn PDF document text
- https://pojirada.weebly.com/uploads/1/3/2/7/132741169/5a699ec320e8000.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/laradusa/activex_control_internet_explorer_11.pdfIn PDF document text
- https://s3.amazonaws.com/legapatatezisa/96525780317.pdfIn PDF document text
- https://s3.amazonaws.com/wuwabobujasivor/71587598512.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_off0000cdc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDC9 | 5132 bytes |
SHA-256: e4be24a289729bf64dd563fe3033257bad061de45fa65e29aa2e10092bbfd8ff |
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font_01_sfnt_off0000df17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF17 | 9992 bytes |
SHA-256: 3f8b7eca293c60ca7abaeb286be75c0d6fa83a0d74e5a0a220f2503e770077ac |
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