MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple disposable domains hosting further PDF files, likely as part of a phishing or malware distribution scheme. The presence of external URIs and a link farm on disposable hosting strongly suggests a malicious workflow designed to obscure the ultimate payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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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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://xajibur.ru/award?keyword=computer+science+engineering+pdf+books+free+download PDF link annotation
- http://deemonatrafik.xyz/buzerixijevunixemefawilqnkc.pdfIn PDF document text
- http://best-ital.fun/mijexitewomedilt3zt5.pdfIn PDF document text
- https://nojijakifon.weebly.com/uploads/1/3/4/0/134012839/7847825.pdfIn PDF document text
- https://maxafusisiwesu.weebly.com/uploads/1/3/4/6/134688878/6534603.pdfIn PDF document text
- https://cdn.sqhk.co/jowapezo/hiiifjb/88615800701.pdfIn PDF document text
- https://javemutamutog.weebly.com/uploads/1/3/4/6/134638327/tazeniwimu.pdfIn PDF document text
- http://sovolox.getenjoyment.net/roxavevo.pdfIn PDF document text
- http://lejidakoxinetog.mywebcommunity.org/sewibot.pdfIn PDF document text
- https://cdn.sqhk.co/bokupajokim/jaY2Jgf/20041941141.pdfIn PDF document text
- https://garowowo.weebly.com/uploads/1/3/6/0/136033653/wuketab.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/81062063-7d9c-42bc-ab6a-5c31d45defbb/greek_mythology_echo_and_narcissus_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/011867a0-7365-4797-81d9-0df14654d79e/mibivinisagulutazad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11cf689d-6739-4352-bfd3-b6daa9aa3e99/dunkin_donuts_beyond_sausage_sandwich_nutrition_facts.pdfIn PDF document text
- https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_3c0d02a8a6b146ca8835b6e50ae78d88.pdf?index=trueIn PDF document text
- https://170a7d3c-74f0-42f5-9ead-98ae292a4922.filesusr.com/ugd/a18aa6_a494fdd1a70d4ac28e7d4dfa48bee76d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d495f722-60a6-4e52-ad6c-02e6de0d09dc/xemuzilizono.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/888e651d-f7c5-4e51-8796-e164d231a105/70640111916.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fb78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB78 | 4156 bytes |
SHA-256: 1f03a9f1dbeb9699da95863febb4a7d67a1e8fb499db66f3d0402a6cd18919b2 |
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font_01_sfnt_off00010a0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A0F | 5676 bytes |
SHA-256: c85e0bba2161563d4ad3358911f3d88e393df9b2ff37acf2e51f469d980b9e20 |
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font_02_sfnt_off00011d55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D55 | 11324 bytes |
SHA-256: 8b52e40f684aa0714fbc20377392917a5d8c53f90abf7194a0a6f3bc371f0cce |
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