MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious intent, including a high-severity PDF_RANDOM_URL_LINK and ML_NYX_PDF_MALICIOUS classification. The document body is heavily obfuscated, but the presence of numerous external links, many hosted on disposable domains, suggests a link farm designed to redirect users to malicious content. The SE_CALLBACK_LURE heuristic also indicates a potential phishing or scam pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://heatingboiler.ca/fck_upload/file/vibunugekanamerisineso.pdf In PDF document text
- http://sakulchaiplace.com/Uploads/file/76512993738.pdfIn PDF document text
- http://xlpe.net/Images_upload/files/4554944732.pdfIn PDF document text
- https://adium.ru/userfiles/file/74499741482.pdfIn PDF document text
- http://ramenhajimetustin.com/uploads/files/60617053826.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/27128232664.pdfIn PDF document text
- http://blgjad.com/upload/files/rozofa.pdfIn PDF document text
- http://trendstyleimage.com/uploads/ckfinder/userfiles/files/mugod.pdfIn PDF document text
- http://kayapalinakliyat.net/file/17841979753.pdfIn PDF document text
- https://cuatudongnhatrang.com/uploads/files/5002223932.pdfIn PDF document text
- http://zjgyuanhong.com/v15/Upload/file/2021916145281877.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/31321471338.pdfIn PDF document text
- http://eko-gospodarstwo.eu/files/file/16682098551.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebca270bf4---97862957269.pdfIn PDF document text
- https://pima-alarms.rs/slicice/file/mavodav.pdfIn PDF document text
- http://vipforiraq.com/userfiles/files/2538538124.pdfIn PDF document text
- https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/kapefajikixane.pdfIn PDF document text
- http://aajude.pt/backoffice/ckfinder/userfiles/files/21656805523.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090305065962.pdfIn PDF document text
- http://tasarimak.com/ckfinder/userfiles/files/82638825002.pdfIn PDF document text
- http://girc.ncue.edu.tw/ckfinder/ckfiles/files/tebirivupogidexolugovi.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/67326814033.pdfIn PDF document text
- https://3rproject.eu/ckfinder/userfiles/files/2105351178.pdfIn PDF document text
- https://greenways.at/userfiles/file/52565807946.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=mortal+kombat+obbPDF 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_off0000d3c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3C7 | 9996 bytes |
SHA-256: 90b126d35b5413259defc1110aec153e72a2e0cbc2e019ab1dbd7f8827a53247 |
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font_01_sfnt_off0000ea00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA00 | 17316 bytes |
SHA-256: effcc37b4a3583201fde9076c812a843da5d58e7ee9c7cae68fb97ea0c40fce4 |
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font_02_sfnt_off00011729.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11729 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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