MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links to disposable hosting domains, suggesting it is part of a link farm designed to obscure the ultimate destination. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. While no scripts were directly extracted, the ML classifier and link farm heuristics strongly suggest malicious intent, likely to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
-
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
-
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
-
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.
-
QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://enjoy.sk/editor_uploads/system/files/fosasaxuzalanokowek.pdf
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/pusudovuv.pdf
- https://lanjutpt1.com/contents/files/lowobemurisorikedoji.pdf
- http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/lafosutubesoxanonodudukux.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/2778711885140aa0f1abf8a7eb9730a0/27150340975.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16130cd73ccae8---sulefugapurologafe.pdf
- https://heritran.vn/uploads/news_file/48442240230.pdf
- http://tiyuchangdi.com/upload_files/files/20210904_213246.pdf
- http://cathugo-yachts.de/res/wysiwyg/file/33186690845.pdf
- http://01host.ru/userfiles/files/36027591029.pdf
- http://laptopplus.be/app/webroot/files/userfiles/files/kosixixerofe.pdf
- http://shinhwajudan.com/userData/board/file/32157483202.pdf
- http://etabetasurvey.com/userfiles/files/48731907965.pdf
- https://aaaxxion.info/images/file/18863484282.pdf
- http://knupress.com/pds/editor/file/vilagizetuzizekavavuvodu.pdf
- https://francemonde.news/UserFiles/file/jivodolonovisuveno.pdf
- http://orzo.cz/uploaded/files/99931591884.pdf
- http://etpatatietpatata.com/userfiles/files/18002861382.pdf
- http://yunnanyingxiang.com/ckfinder/userfiles/files/bisitukowi.pdf
- https://copperscraphandlers.com/ckfinder/userfiles/files/47635472082.pdf
- http://esoftland.com/userfiles/file/jejowolofemefux.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d31c5f3118---39241393003.pdf
- http://www.deopendeur.org/imgUser/file/75018483602.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=qr+code+reader+web
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d518.bin37152de9bfc98cb90d62c99a1f02d25045ef9e2e919a26afdf88ad6bb93e1ee0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD518 | 16780 bytes |
font_01_sfnt_off000100a8.binebf60d1d34231e8b547d3116260ad8dcff9806e1e9a36e8babce6b55f0e6e5c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A8 | 10140 bytes |
font_02_sfnt_off00011787.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11787 | 16792 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.