MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, with specific heuristics indicating it is a PDF phishing lure. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the heuristics point to a callback phishing pattern where users are prompted to call a number. While no scripts were directly extracted, the presence of embedded URLs and the overall detection suggest a phishing attempt, likely involving a malicious PDF designed to trick users into contacting an attacker.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://cbconsulting112.ca/userfiles/files/42764270450.pdf In PDF document text
- http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pugonunubutuvu.pdfIn PDF document text
- http://heydarbaba.org/resimler/files/safibazijiwijogaruminir.pdfIn PDF document text
- https://self-storage.sg/images/uploadedimages/file/gopilezuropujegaminuvinet.pdfIn PDF document text
- http://derp74.fooden.com/UserFiles/files/soneno.pdfIn PDF document text
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/51685528189.pdfIn PDF document text
- http://aucoindeshalles.com/menu/file/sajufolokidira.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdeb409623---sobugimosejilojox.pdfIn PDF document text
- https://hoangphatdanang.xetnghiemadndanang.com/uploads/image/files/laberazop.pdfIn PDF document text
- http://piri-piri.pl/ckfinder/userfiles/files/38039857524.pdfIn PDF document text
- https://samuelben-horin.com/userfiles/file/zifanalibuwonuke.pdfIn PDF document text
- https://skopjemuzikon.pmgrecordings.com/ckfinder/userfiles/files/bevikobuburaraxunew.pdfIn PDF document text
- http://jonkmp.nl/img/cms/file/kitulevonixasivexaz.pdfIn PDF document text
- https://nusbetaja2.com/contents/files/32020698998.pdfIn PDF document text
- http://findmecakes.com/userfiles/files/goxexodenovirejoxubuxu.pdfIn PDF document text
- https://zlatartopalovic.rs/files/kuwawo.pdfIn PDF document text
- https://ww150005.linebot.net/upfile/files/20210906131721.pdfIn PDF document text
- http://membranekeyboard.pl/_data/file/68454262371.pdfIn PDF document text
- https://bestrecycledautoparts.net/images_i/file/pobokizida.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161416cc29f09d---29186494983.pdfIn PDF document text
- http://urparitet.ru/admin/ckfinder/userfiles/files/18932686059.pdfIn PDF document text
- http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/14151378770.pdfIn PDF document text
- http://healingtown.org/userData/board/file/59110361502.pdfIn PDF document text
- https://maydangson.com/vietkiendo/upload/file/83255058792.pdfIn PDF document text
- https://kamionosnyelvlecke.hu/userfiles/file/49515663579.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=pixel+5+notification+soundPDF 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_off0000b0ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0CA | 15404 bytes |
SHA-256: d0e6d92127f869812d02a6bea04c89afe0b56a5575baf71a10d8e5dc9e556841 |
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font_01_sfnt_off0000d7c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C0 | 10704 bytes |
SHA-256: 9f9fc69feeb1e7df6ceb04595080d7cfbea7b7b572e93311de2750b8a3b1f2c5 |
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font_02_sfnt_off0000f086.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF086 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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