MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document impersonates a cloud file-sharing service, a common lure for phishing attacks. The presence of numerous external URIs, many pointing to disposable domains, further supports this. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly indicate malicious intent, likely involving a phishing or credential harvesting scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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://tw-echen.com/uploads/files/202109180222372848.pdf In PDF document text
- http://hnc2.com/userfiles/file/90082532074.pdfIn PDF document text
- http://perlawarmii.pl/userfiles/file/kuxududavamunogopiluk.pdfIn PDF document text
- http://cortocircuito.trialpanel.com/images/Upload/files/basonekikutoni.pdfIn PDF document text
- http://www.cavice.fi/tiedostot/files/vojixotemofivekofi.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/49636710266.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/zelitevunixovajukivese.pdfIn PDF document text
- http://4grd.com/cmsimages/file/20116629965.pdfIn PDF document text
- http://agendatourvietnam.com/hinhanh/file/46652393801.pdfIn PDF document text
- http://wish-pharma.com/upload/files/2609201098.pdfIn PDF document text
- http://acpiindia.com/userfiles/file/37088645994.pdfIn PDF document text
- http://effekt-film.de/files/file/11593344738.pdfIn PDF document text
- http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/88762271921.pdfIn PDF document text
- http://madmojo.com/fckupload/file/lojutadosiko.pdfIn PDF document text
- https://hamzsabegi60szallo.hu/UserFiles/File/bigesavesaduvug.pdfIn PDF document text
- http://rszm88.com/upfolder/e/files/20210916222429.pdfIn PDF document text
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/39861139765.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137161b5a1f6---geloforiwolafejod.pdfIn PDF document text
- http://bjbtrh.com/files/pic/file/sujap.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/8925259726.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/wezikixapejebiposave.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c667f19c4b---puvevebised.pdfIn PDF document text
- https://aurorabersinar2.com/contents/files/90056115002.pdfIn PDF document text
- https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/xipixubumuzovat.pdfIn PDF document text
- http://autoscuolapezzano.it/userfiles/files/setukodidukikojexawu.pdfIn PDF document text
- http://khiensa.com/UserFiles/File/nizuxetavofufe.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=office+365+cloud+loginPDF 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_off0000d1b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1B1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9C3 | 18164 bytes |
SHA-256: aa156edf448221bb296c75eee046abfa330c37899b7267a514f674866fd78d5e |
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font_02_sfnt_off00011971.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11971 | 10724 bytes |
SHA-256: bcbe05ee937a72420737e0451a7224f706b988c9906e224ccb103bbff0d2796e |
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