MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, with a high concentration on disposable hosting, indicating a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a malicious intent to obscure the true destination or distribute phishing content. No scripts were extracted, but the PDF structure and embedded URLs point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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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 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://trafffi.ru/123?utm_term=where+is+chino+california+on+the+map
- https://static.s123-cdn-static.com/uploads/4476930/normal_5ff19b03ef86c.pdf
- https://cdn-cms.f-static.net/uploads/4391302/normal_5fa0e8003e185.pdf
- https://lapamijivosesez.weebly.com/uploads/1/3/4/5/134507295/1383544.pdf
- https://cdn-cms.f-static.net/uploads/4422367/normal_5fb2c33847b34.pdf
- https://cdn-cms.f-static.net/uploads/4489257/normal_5fb2cb66f40c1.pdf
- https://cdn.sqhk.co/guletema/jcii5hd/shark_bite_drink_with_vodka.pdf
- https://lavozeto.weebly.com/uploads/1/3/0/7/130775819/jidujidu.pdf
- https://static.s123-cdn-static.com/uploads/4387411/normal_5fee0bda41eb6.pdf
- https://ledobosu.weebly.com/uploads/1/3/1/3/131383424/puxifakabimadeba.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/e2aa10b1-c4ae-4bb0-b789-0a0f8e7f8e33/16208964827.pdf
- https://s3.amazonaws.com/dubiditiginowo/redfish_fishing_guides_venice_la.pdf
- https://s3.amazonaws.com/kiwopusafize/cydia_jailbreak_for_windows.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001f028.bine1366100d76f55e7d82bb60ecd285c085ed9e185579d90075dee9653c596ceb6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F028 | 5268 bytes |
font_01_sfnt_off000201f7.bin18d1ab0c44217327afa60290b84fbe5398b765194640a1caa33f532c5d79d28f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x201F7 | 11020 bytes |
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