MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous embedded URLs that point to external sites, including a known malicious redirector. The heuristics indicate a deliberate attempt to create a link farm on disposable hosting, likely to distribute malware or facilitate phishing attacks. The presence of a redirector URL suggests a multi-stage attack where the initial PDF serves to lead the user to a more dangerous destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 8
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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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://cctraff.ru/strik?utm_term=apk+five+nights+at+freddy%2527s+mod In PDF document text
- https://piteselijofer.weebly.com/uploads/1/3/4/6/134608400/ddf1077a78ef4c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379221/normal_5fabfe4d7e619.pdfIn PDF document text
- https://sivisobimiji.weebly.com/uploads/1/3/4/7/134754783/d2653d91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418762/normal_5f9ec2778b725.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455660/normal_5fa5d8250bd03.pdfIn PDF document text
- https://rizaxulizogi.weebly.com/uploads/1/3/4/7/134753796/sopibojetazinonulawo.pdfIn PDF document text
- https://leniwexobopusez.weebly.com/uploads/1/3/4/7/134713406/kumire-nafumovilapowu-wudomevikuxu-xafobalav.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413125/normal_5fc7f01594b37.pdfIn PDF document text
- https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/2803408.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/58cf2a88-8358-4c84-9443-85c210326d4d/wow_grimclaw_location.pdfIn PDF document text
- https://s3.amazonaws.com/xomepixo/todiliwijiwonuvabul.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88cddd1f-f83f-42c9-aed0-d06f50a0a742/casa_amor_exclusive_for_ladies.pdfIn PDF document text
- https://s3.amazonaws.com/bofake/30107730456.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c1739b95-1131-4be8-ac86-b7f9dec05975/lixok.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_off0000d43b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD43B | 5672 bytes |
SHA-256: 18f084abecb8362da89fc1978b14c82fc809076a7c7b71a2bdf94d58f3773a85 |
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font_01_sfnt_off0000e787.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE787 | 10460 bytes |
SHA-256: 092dd73d8eb91cf91dd65e5db1296398b6d2aeaa109dd6cfb914e4746d699b76 |
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