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 0.9998
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://jottigo.ru/123?utm_term=codehs+karel+answers+1.+13.+4 PDF link annotation
- https://vajawopi.weebly.com/uploads/1/3/4/5/134597817/ferelodexafuboxosu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415530/normal_604cf2185265b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366014/normal_60543e49635f7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4452389/normal_5fe0196c503d5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483365/normal_600f24dc5a2b5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378845/normal_5fca4cc6d46c1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485157/normal_5ffacc462d46f.pdfIn PDF document text
- https://nozirurabi.weebly.com/uploads/1/3/0/7/130738896/b640cea.pdfIn PDF document text
- https://luselovuxetox.weebly.com/uploads/1/3/0/7/130739290/2857919.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403556/normal_6050750593014.pdfIn PDF document text
- https://gugebizibepowe.weebly.com/uploads/1/3/4/3/134364706/4219734.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423732/normal_6013a086afd0f.pdfIn PDF document text
- https://gulapizebulo.weebly.com/uploads/1/3/1/0/131070336/nugukudev.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/df82a7b2-67d9-4ae3-8d43-e80eaed0bfa4/borokukov.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/989a7a2f-62a5-48b1-a25b-ba226e702763/adobe_premiere_pro_latest_version_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cd0d947d-e8f7-44f8-91c4-fb0246c8cfde/41013101254.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/620ce382-cf7b-4eab-b071-94705336be03/wabogero.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09514409-d4d7-465c-afc4-2794555f1e90/47275680968.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d98ed7e8-c1d3-4a45-b70f-177c5fbc9d83/63069462064.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_off0000cb2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB2E | 5308 bytes |
SHA-256: b2661b61a926b4fa15843c074f1c5f65dd17ce5b0821b3f9c83761230a6fb18f |
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font_01_sfnt_off0000dd4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4E | 11124 bytes |
SHA-256: 77d9b24d1faad7584cca8b8716600e6ee83b8401ce9eaec928192491e8bc91f2 |
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