MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and ClamAV as malicious. It displays a fake CAPTCHA, a common lure to trick users into performing an action, and also contains numerous embedded URLs, many of which point to PDF files on potentially disposable domains. The presence of a 'Password-protected archive handoff' heuristic suggests the document is designed to lead the user to download an encrypted payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://arohitourandtravels.com/userfiles/file/zikefabozilatanemurubi.pdf In PDF document text
- https://sabresources.com/FCKuploads/file/sagonu.pdfIn PDF document text
- http://wieswioska.pl/userfiles/file/17891058188.pdfIn PDF document text
- http://aolisenjiancai.com/data/files/nafomudojivitigiromo.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/viwanusot.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/64354157195.pdfIn PDF document text
- http://agppi99.pretty-match.com/upload/files/11877479128.pdfIn PDF document text
- https://andhimazhai.com/images/files/41491951106.pdfIn PDF document text
- http://a2kat.ru/userfiles/file/wopivavaxoto.pdfIn PDF document text
- http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/pujamax.pdfIn PDF document text
- http://indianspringhomes.net/userfiles/files/70579348550.pdfIn PDF document text
- http://grafosaleservice.cz/images/fck_editor/file/26689077625.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/161430581cedc4---tilisosujotadipulepeka.pdfIn PDF document text
- http://cn-biyoute.com/d/files/10065831839.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/8395814065.pdfIn PDF document text
- https://viscom.bg/uploads/wysiwyg/files/tubabebemizobaju.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/161364a8959d43---1023262786.pdfIn PDF document text
- http://pomocnaukowa.net/Upload/file/12911234966.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210905233634515.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/33690632845.pdfIn PDF document text
- https://nistd.in/userfiles/file/11970061425.pdfIn PDF document text
- http://romento.com/uploaded_files/userfiles/files/zafixazasagepaverimufovod.pdfIn PDF document text
- http://szkolka-wiercioch.pl/files/file/36622664935.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/72180470206.pdfIn PDF document text
- http://athaj2.specialty-match.com/upload/files/6704307446.pdfIn PDF document text
- http://karpatskiles.ru/store/files/wibowakadukezeboloji.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=my+bigpond+com+auPDF 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_off0000dad0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD0 | 10660 bytes |
SHA-256: 3d616ef6fa28164750f0ff349164b21d34d6a56127b415846243ebadc5c4c1b0 |
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font_01_sfnt_off0000f2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ac9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC9 | 19268 bytes |
SHA-256: 658782ed46f369c03fdcb6c1ca393e13f33975cdde884f25c99a48aab8febb83 |
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