MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the presence of external URIs and a link farm structure. The document body is unreadable, but the overall structure and URL analysis point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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.
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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 https://semangkamerah.com/contents/files/kejosurozatekiwoso.pdf In PDF document text
- http://petra-koparki.pl/Upload/file/15481319352.pdfIn PDF document text
- http://yeosingol.com/FileData/ckfinder/files/20210903_9EED9013612B79F1.pdfIn PDF document text
- http://1day2night.com/UserFiles/file/49062575287.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613df98fba375---bebitaxuz.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614d46160c17c---modabuk.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/7405dbc0726207e40b677dd5a835b2c9/85105979710.pdfIn PDF document text
- http://www.hzkontejnery.cz/ckfinder/userfiles/files/ximalepazazazuso.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/wevudenuxugi.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/37870734282.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/22308110796.pdfIn PDF document text
- https://kalitelivideoizle.com/resimler/files/fudaw.pdfIn PDF document text
- http://sb555.com/photo/file/xotazegazulo.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/jumetekoxosewotasewewon.pdfIn PDF document text
- http://art-lan.ru/uploads/assets/file/ruseteku.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/lexevuzenoto.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/0796720f6defda32065546626284c88f/7324549514.pdfIn PDF document text
- http://xinxinhouseware.com/uploadfile/files/vajan.pdfIn PDF document text
- http://www.pilatesyoga.hr/files/files/34666114991.pdfIn PDF document text
- http://khocabien.com/uploads/files/gizadesozowaruzo.pdfIn PDF document text
- https://vietnaminsight.biz/ckfinder/userfiles/files/69188908347.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/sifuloferasuguruvekon.pdfIn PDF document text
- http://www.sctiec.com/up_files/FCK/file/49237225970.pdfIn PDF document text
- https://associazionebriciole.it/public/file/jopifekolape.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=armoury+crate+software+downloadPDF 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_off0000b50e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB50E | 17736 bytes |
SHA-256: 246c40a865db69618ddcc1b5f3f282444f9df1e2779eee63af5e5f8be23d48fc |
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font_01_sfnt_off0000e328.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE328 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fb3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB3F | 10828 bytes |
SHA-256: f44f3d9942803aa2b6938cffeb8f000d45402a2276ac1de4b3a74c5d2a1cd270 |
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