MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal or Forge Credentials
The sample was flagged by ML classifiers and ClamAV as malicious, with a critical heuristic indicating it is a lure for Multi-Factor Authentication (MFA) or one-time codes. This strongly suggests a credential harvesting attempt. The document body was heavily obfuscated and unreadable, but the heuristics point to a phishing attack designed to steal sensitive user information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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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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://zeci.nl/im/image/puwilerubemekoxiret.pdf In PDF document text
- http://st-communications.com/ckfinder/userfiles/files/66242437640.pdfIn PDF document text
- http://studiotrusso.it/userfiles/files/kifuninidebiwivodolozanul.pdfIn PDF document text
- https://baglab.pl/galeria/file/tixuxelopovalivazokagosoz.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///70354719290.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/defemot.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16141ef4503fc9---didugomomeliwopavojawif.pdfIn PDF document text
- https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/69632756241.pdfIn PDF document text
- https://pypconsultores.mx/userfiles/file/39587189172.pdfIn PDF document text
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/butafojolaneb.pdfIn PDF document text
- http://panda-es.tokyo/yamituki-n/uploads/files/20517988216.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210901_BED5D600D26CB3DF.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/b14d0ebb7dbb8750f52badb74422e99b/50372010515.pdfIn PDF document text
- http://avvocatoandreabruschi.it/userfiles/files/gadugisakavidipanu.pdfIn PDF document text
- http://luxe-pools.fr/i/File/povugowuba.pdfIn PDF document text
- http://festacreativita.org/userfiles/file/58208318213.pdfIn PDF document text
- https://rafautama.com/uploads/file/6248918748.pdfIn PDF document text
- http://electric-kernbichler.at/53727953120.pdfIn PDF document text
- https://penzion-pod-rozhlednou.cz/img/file/50153845684.pdfIn PDF document text
- http://ttlh.vn/storage/ckfinder/files/63042066703.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/lomexol.pdfIn PDF document text
- http://3sdent.com/upload/files/11043443823.pdfIn PDF document text
- https://activsport.ro/userfiles/file/52885362041.pdfIn PDF document text
- http://noithatachau.vn/webroot/img/files/nuxan.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+delete+xbox+fortnite+accountPDF 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_off0000ea18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA18 | 18444 bytes |
SHA-256: 39c3725be2f3f5cb9cbc2813e1cdb2ed0a239e4af2f1a3352aaaa1c9bcec0b10 |
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font_01_sfnt_off000119ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119FF | 10720 bytes |
SHA-256: 2e4357898ad92effeae06b8aba486ea6ec6a1de9676a6c0265e54f957eefc2bd |
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font_02_sfnt_off000132c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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