MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam pattern, where the document likely prompts the user to call a phone number. The presence of numerous embedded URLs, many pointing to suspicious domains, further supports the malicious intent, likely to host further stages or redirect to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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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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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 http://nokianhakkablue.ru/ckfinder/userfiles/files/57016041259.pdf In PDF document text
- http://www.casasemio.com.br/ckfinder/userfiles/files/buzuwowite.pdfIn PDF document text
- http://thanhcongtechtra.com/upload/files/zafuzepexa.pdfIn PDF document text
- http://wx-bm.cn/upload/ckimg/files/202109090609562548.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/mibaturo.pdfIn PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/67850856386.pdfIn PDF document text
- https://dortmundpools.com/contents/files/49111071500.pdfIn PDF document text
- https://altstudio.be/app/webroot/uploads/file/29749865247.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139607b2d77c---66021768481.pdfIn PDF document text
- http://feuerwehr-mittenwalde.de/mediathek/files/gunorutavafutavevinaraku.pdfIn PDF document text
- http://youandisagenix.com/ckfinder/userfiles/files/38170211101.pdfIn PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/53730471345.pdfIn PDF document text
- http://bestpokeya.com/uploads/files/92321794059.pdfIn PDF document text
- http://vkp.ru/upload/global/file/zagin.pdfIn PDF document text
- http://retailcop.ca/files/81815430452.pdfIn PDF document text
- http://chrislahoda.ca/userfiles/file/33351567617.pdfIn PDF document text
- https://golf-tout-terrain.com/publish/page/file/bugorenilosalivagenodu.pdfIn PDF document text
- https://airin.lv/images/userfiles/file/bimom.pdfIn PDF document text
- http://avvolodin.ru/upload/file/vowet.pdfIn PDF document text
- http://geometrarontani.it/userfiles/files/56117935497.pdfIn PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/sefejoxe.pdfIn PDF document text
- http://daydeothe.vn/rich_editor/file/49145282239.pdfIn PDF document text
- http://hwayoung.kr/upfile/files/sifunatagekururugowug.pdfIn PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/86369279234.pdfIn PDF document text
- https://dobre-akce.cz/media/files/file/pafedipopoziw.pdfIn PDF document text
- http://www.cerathai.com/image/upload/File/rivipiwufovuzizoxit.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=i+cant+download+on+playstorePDF link annotation
- 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_off0000db6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB6C | 10568 bytes |
SHA-256: ec6296ecbe9f0fd85958526e978e76b0723983b98fd3174f755da4ccc6f2837d |
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font_01_sfnt_off0000f3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C9 | 17584 bytes |
SHA-256: 6072e7e2b8401d71f92fa3fb2da17eb93e8430882e5aa030be058a962b31e95e |
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font_02_sfnt_off00012119.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12119 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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