MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It presents a fake CAPTCHA, a common lure to trick users into executing further malicious actions or downloading additional payloads. The document contains numerous embedded URLs, many of which point to potentially malicious PDF files, suggesting a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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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://khachsanmyngoc.com/upload/files/40569047683.pdf In PDF document text
- http://rdmsrl.it/userfiles/files/12587837328.pdfIn PDF document text
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612f43a8eafbc---51780022078.pdfIn PDF document text
- http://kientrucsangtrong.com/plus/files/52217890267.pdfIn PDF document text
- http://yonseri.org/userfiles/files/jafajojek.pdfIn PDF document text
- https://cbdc.co/uploads/ckfinder/userfiles/files/67157408926.pdfIn PDF document text
- http://zamgph.com/FCKeditor/editor/filemanager/connectors/php/uploads/file/061526456462.pdfIn PDF document text
- http://kidzcastleschool.com/singhania/downloads/file/wajoxonomazaberiguni.pdfIn PDF document text
- http://www.specemc.ru/upload/files/48337206032.pdfIn PDF document text
- http://hoteldarim.ir/basefile/hoteldarimir/files/jofelu.pdfIn PDF document text
- http://chizclean.ru/files/fck/file/67103503845.pdfIn PDF document text
- http://whatcanidoforyou.eu/publish/file/lamurekoposodiwozumisik.pdfIn PDF document text
- https://rwd1.thadv.com/upload/files/vetonobilinotam.pdfIn PDF document text
- http://alconsprom.ru/ckfinder/userfiles/files/supapakedenaxunujurexa.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/0c6f5c5d8c4cd6dc065b92015d04113a/93212973718.pdfIn PDF document text
- http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/71835392265.pdfIn PDF document text
- http://siddharpeedam.org/userfiles/file/In PDF document text
- http://qualityroofinnandsuites.com/nbloom/fckuploads/file/21834034362.pdfIn PDF document text
- https://confidence-ist.com/ckfinder/userfiles/files/jobejasatalovowekapup.pdfIn PDF document text
- http://streetnn.ru/data/upload/ck/files/46240619249.pdfIn PDF document text
- http://kargo-box.com/uploads/files/85121574405.pdfIn PDF document text
- http://bpsstudio.hu/uploads/wifesuwalazisewiwite.pdfIn PDF document text
- http://hatdesechia.com/storage/ckfinder/files/warimadovage.pdfIn PDF document text
- https://epgeptech.hu/ckfinder/userfiles/files/60704569061.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=i+ve+forgotten+my+android+passwordPDF 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_off0000bcb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d4ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4CA | 11012 bytes |
SHA-256: bbfa5b7f05c5c382dd6fb2f0416e866d9553fb47203937c3312960f3ccee1638 |
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font_02_sfnt_off0000ee43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE43 | 17360 bytes |
SHA-256: 25d310c83624b1f45a1ad14dd87d0c17f817cbf6d1885b9d6f64eb030795382b |
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