MALICIOUS
246
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document contains numerous external links, many pointing to disposable domains, suggesting a link farm or phishing lure. The presence of a callback phishing lure heuristic indicates an attempt to trick users into calling a fraudulent support number. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites for credential harvesting or further payload delivery.
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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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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Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LUREPDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://midufefew.ru/strik?utm_term=armitron+45%252F7042+hourly+chime PDF link annotation
- http://com-login8.xyz/parrot_mki9200_remote_does_not_workg2o2f.pdfIn PDF document text
- https://cdn.sqhk.co/gujowaxexag/gjjQjf4/2030623402.pdfIn PDF document text
- http://kkkirrreeee.space/principles_of_realism_in_education7dhf3.pdfIn PDF document text
- http://qupieasy.online/hush_hush_series_book_395y8p.pdfIn PDF document text
- https://cdn.sqhk.co/tonukabonuwe/Wvbijjb/86585581561.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447914/normal_60622db944eb2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376371/normal_5ff666d82eb3d.pdfIn PDF document text
- https://cdn.sqhk.co/gugapedulob/fjj4djc/82633246166.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390055/normal_5ffb63b276035.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/d77f2100-95c2-458d-a388-7c6c2fb0f5ed/47470274691.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14531483-571a-4340-aa5a-39c2138807b3/2012_chevy_equinox_engine_replacement_cost.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f616d4b3-aa13-4a97-983e-4b5ae233338c/likujatodi.pdfIn PDF document text
- https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_4da600ee973f40b08656eaef7f1c249e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a70a5057-5ef1-46c0-94ad-66e9aab6e66f/how_to_connect_altec_lansing_speakers_together.pdfIn PDF document text
- https://fb075467-9d00-46c6-93ac-2b777f5e584b.filesusr.com/ugd/8bcd66_397da6c8ebc34811b70acc3c62c50ef5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c10016f7-3233-42cf-b92c-f0eb0cce9833/vivitar_283_manual.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_off0000db00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB00 | 5344 bytes |
SHA-256: 6f80d14d886fe17a125c7a451d0b992c35bd99e4cdaa202b25d491cf922303d1 |
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font_01_sfnt_off0000ed2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED2D | 10760 bytes |
SHA-256: 000a060a04e4db45a16fb0784b415f5814c515fad46595a0245a41b2d9e8cac6 |
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