MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam, where the user is prompted to call a number. Although no scripts were explicitly extracted, the PDF structure and numerous embedded URLs point towards a phishing or social engineering attack, likely involving the download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/larak.pdf In PDF document text
- http://eichler-kammerer.de/gizufilavilipemekupa.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109140251081922.pdfIn PDF document text
- https://goodluckfishing.com/ckfinder/userfiles/files/rosefejobinudiriwopizum.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16144e62d408aa---bivititofarozudalowigozux.pdfIn PDF document text
- http://wamer.org/userfiles/file/95332739183.pdfIn PDF document text
- http://geoscan.it/userfiles/files/xukoridoxokigazofukizo.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdaa0a1948---42096853088.pdfIn PDF document text
- https://e-midas.ro/files/file/51891570640.pdfIn PDF document text
- http://195exim.com/datas/files/87483253834.pdfIn PDF document text
- http://wakabaeducation.com/userfiles/file/51588255441.pdfIn PDF document text
- http://vallovin.it/userfiles/files/nubidoter.pdfIn PDF document text
- https://zhongzing.com/uploads/files/202109181515208334.pdfIn PDF document text
- http://midesignvn.com/uploads/files/6447255065.pdfIn PDF document text
- http://grandioso.asia/editor_upload_image/file/67902036683.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/a1hqq9jg1luj0o745dqoutkrg0/gizokamowewavi.pdfIn PDF document text
- https://alansglobalservices.com/ckfinder/userfiles/files/nirefibogidokaguj.pdfIn PDF document text
- https://dottoridegregorio.it/public/file/bitivujavugotikolileno.pdfIn PDF document text
- https://soudurelausiere.ca/upload/editor/file/67724489947.pdfIn PDF document text
- http://lagrupacio.cat/file/zikifonipa.pdfIn PDF document text
- https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/10867379718.pdfIn PDF document text
- http://rc-modeller.se/images/file///bimupave.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=closed+graph+theorem+in+functional+analysisPDF 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_off0000b121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB121 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c933.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC933 | 15644 bytes |
SHA-256: 841d32b809d27adaf1e82180ba8eda66101bc7a43a1fafe7b1f196db4e0d2a72 |
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font_02_sfnt_off0000f103.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF103 | 11312 bytes |
SHA-256: 644dd01920b75ac17a9c0d9fe73aa44e4191ece5bfbe7ec5f4733fdf86d49462 |
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