MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to redirect the user to malicious websites. The presence of a 'link farm' heuristic and numerous unknown-reputation URLs suggests a phishing or malware distribution campaign. ClamAV detection further confirms its malicious nature, likely exploiting a vulnerability to execute code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://queure.ru/uplcv?utm_term=the+black+book+of+revenge+pdf PDF link annotation
- http://zulaikhatextile.com/userfiles/files/63764690475.pdfIn PDF document text
- https://ikitellirezistans.com/upload/files/zepupukajotopamotufapofub.pdfIn PDF document text
- http://sinice-rasy.cz/files/file/30290505311.pdfIn PDF document text
- http://happysmilecard.com/uploads/files/wigorosabami.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/vobogejutukujiboleme.pdfIn PDF document text
- https://banderlogclub.ru/Files/file/xetudi.pdfIn PDF document text
- https://www.groupe-coelho.fr/ckfinder/userfiles/files/sopimodexupe.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b792582c5---30818836794.pdfIn PDF document text
- http://stellar-toys.com/ckfinder/userfiles/files/96998622496.pdfIn PDF document text
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021091412032680554.pdfIn PDF document text
- https://artedeeducar.com.br/ckfinder/userfiles/files/tonajejijus.pdfIn PDF document text
- https://whereestar.com/marinarubicon/admin/file/5012503010.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353b25b2046---2858712959.pdfIn PDF document text
- https://sgicorp.com/userfiles/files/19856932616.pdfIn PDF document text
- http://24horasnoar.com.br/ckfinder/userfiles/files/lixugu.pdfIn PDF document text
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/64604143033.pdfIn PDF document text
- https://happyfun.tw/uploads/files/202109111409434764.pdfIn PDF document text
- http://licausi.it/userfiles/files/8914762862.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/fagewuketorikedakikakanab.pdfIn PDF document text
- https://alnahamgroup.com/userfiles/file/68150570964.pdfIn PDF document text
- http://garage-ys.info/js/upload/files/tinuxopapejumugok.pdfIn PDF document text
- https://safewatersolutions.in/ckfinder/userfiles/files/ruduzada.pdfIn PDF document text
- https://aimara-bg.com/userfiles/file/sexunijeso.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d62f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD62F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE41 | 17764 bytes |
SHA-256: e6481a1e1af2e7007bdcab7da801c4f458a40245c9b5f31d8973a0c4ab79b07f |
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font_02_sfnt_off00011c2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C2A | 10804 bytes |
SHA-256: a680f666edc9b3283fb96d147546a98b9d7653c06766d169dd4a50958c1773ef |
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