MALICIOUS
264
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of embedded links, many of which point to redirectors and disposable hosting, suggesting a link farm designed to distribute malicious content. The document body, though heavily obfuscated, appears to be a lure related to a calendar, likely to trick users into clicking the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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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://traffmen.ru/aws?utm_term=calendario+2018+mexico+para+imprimir+pdf In PDF document text
- https://site-1196632.mozfiles.com/files/1196632/46456679181.pdfIn PDF document text
- https://neveloso.weebly.com/uploads/1/3/1/4/131408616/gadaganez_bigasiwunokib_sajasazoniwum.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446914/normal_5fad835595d42.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366024/normal_5fb371c04f79c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386086/normal_5f9752c01f3ef.pdfIn PDF document text
- https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/jepiwiwe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453720/normal_5fa8b56d6c6fb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408858/normal_5fc4e8e1414b9.pdfIn PDF document text
- https://site-1245455.mozfiles.com/files/1245455/minecraft_skins_template_pocket_edition.pdfIn PDF document text
- https://sadavofabuloxus.weebly.com/uploads/1/3/5/3/135316226/vuganez.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387573/normal_5febb14708498.pdfIn PDF document text
- https://simebofes.weebly.com/uploads/1/3/1/4/131438459/369493.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471948/normal_5fe12c2f935a7.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/rujabepifar/hd_movie_hub_2019.pdfIn PDF document text
- https://s3.amazonaws.com/nodetuxapabara/rerip.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
- 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_off0000fa8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA8E | 5616 bytes |
SHA-256: b252e8f01f5c7c4bef3188b278db28f945a056f0c4702cb310cb7bce1eb12e34 |
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font_01_sfnt_off00010d99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D99 | 11308 bytes |
SHA-256: e50e2c7de5d87bbc7051a67db8fbd065cf0c8d7c37c2b6fd1d630b116b216963 |
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font_02_sfnt_off000132c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132C1 | 17548 bytes |
SHA-256: f8623166b190141bb9a6635a7dbe6eeb729916a28b7cd865a2664bad14062bda |
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