MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which point to potentially malicious domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's purpose is to act as a link farm, likely to distribute further malicious content. ClamAV detection and ML classification strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://smsalumni1971.com/apadmin/uploads/userfiles/files/bijikitobo.pdf In PDF document text
- https://erdenetpost.mn/userfiles/files/vavelorafese.pdfIn PDF document text
- https://chennothinterios.com/uploads/file/bisuxolesidowaxofupuwu.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/rodevosoginutetujofavi.pdfIn PDF document text
- http://mansiya.com/uploadfile/files/nodomoduvadijafasepi.pdfIn PDF document text
- http://biomax.shop/filespath/files/20210903100306.pdfIn PDF document text
- http://gcoekmr.org/cukashmir/User_Files/imagefile/tajawuzivirero.pdfIn PDF document text
- https://shidoremicrosys.com/media/76972664854.pdfIn PDF document text
- https://tagoproperties.com/ckfinder/userfiles/files/22264283233.pdfIn PDF document text
- http://www.sudeshnamaulik.com/fckimages/file/nikumopotisovenola.pdfIn PDF document text
- http://alpha-cp.com/userfiles/file/66736618638.pdfIn PDF document text
- http://med-os.com/user_upload/file/gepawajozavej.pdfIn PDF document text
- http://wksx.top/images/userfiles/file/vepizijiwozobetabejanoxu.pdfIn PDF document text
- http://spartaksedlec.cz/spartaksedlec/userfiles/file/xulizeparef.pdfIn PDF document text
- https://vadihosting.com/calisma2/files/uploads/bukojoledolovamegixila.pdfIn PDF document text
- https://loyallcanada.com/editor_files/file/26968280553.pdfIn PDF document text
- https://autonoleggioassereto.com/file/wetelunesi.pdfIn PDF document text
- https://reniuved.it/file/nodarelowefanujiz.pdfIn PDF document text
- https://mk-sito.it/uploads/file/semutev.pdfIn PDF document text
- https://afayl.com/userfiles/file/39885495944.pdfIn PDF document text
- http://keralastatetailorsassociation.com/userfiles/file/sikekumodu.pdfIn PDF document text
- http://nawaress.com/webroot/js/ckfinder/userfiles/files/48366676454.pdfIn PDF document text
- http://mycoapaisyl.com/webimages/files/24492520851.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=words+with+q+and+k+in+themPDF 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_off0000e8b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B4 | 18000 bytes |
SHA-256: fe2bcc2dc57b52b9d648e1f19b8018d668600f5bc0999f9837456e30a5e95610 |
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font_01_sfnt_off00011745.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11745 | 10784 bytes |
SHA-256: f70a10f85b7ef5ec10ad9ea7578003e0938ddc04374df44869c51795b24df5bd |
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font_02_sfnt_off00012fc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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