MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ML classifier also flagged the PDF as malicious with high confidence. These links likely serve as a lure to download further malicious content or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 5
-
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.
-
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 https://luatsubienhoa.com/upload/ck/files/jedojuboworiwuroruxafiv.pdf In PDF document text
- http://rbc-bezorgdiensten.nl/upload/48793405578.pdfIn PDF document text
- https://baoyi-chuck.com/ckfinder/userfiles/files/15594951653.pdfIn PDF document text
- http://ilkconstruction.com/Images/Media/files/15391878160.pdfIn PDF document text
- https://bishopsalamatkhokhar.org/userfiles/file/54173262047.pdfIn PDF document text
- http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/jumuwojol.pdfIn PDF document text
- http://matchonusa.com/uploads/files/wujulap.pdfIn PDF document text
- http://arkystudio.eu/userfiles/files/misixiviromemup.pdfIn PDF document text
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612fee43ea4dd---towilajupasifiru.pdfIn PDF document text
- https://kysig.com/app/webroot/userfiles/files/99386870473.pdfIn PDF document text
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202109131059178987.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/38883552849.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/05b0dbd93d24a98c9c02f0228160a769/55996312622.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615159e641b02---jobagakunugariruketim.pdfIn PDF document text
- https://nhahangthanghuong.com/uploads/files/4211203594.pdfIn PDF document text
- http://szzxwx.com/Upload/Upload/file/20219121747151350.pdfIn PDF document text
- http://doanhnhangiaophanvinh.com/images/files/dudesujeretapuvanedidised.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/lidozedaguromas.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161454578e9dba---tunivuxetegewuz.pdfIn PDF document text
- http://slmj8.com/data/userfiles/files/80588104627.pdfIn PDF document text
- http://jlm-kg.com/uploads/file/gajutavitezigoto.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/devazubefowuvivobalo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=agent+john+brown+mod+apkPDF 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://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_off0000b8d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_01_sfnt_off0000d0f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0F0 | 10964 bytes |
SHA-256: 01e62eb8ca2d0671a68d059efef6260042fd839d6b39c9a93c4c5d22a62aa935 |
|||
font_02_sfnt_off0000e9d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D0 | 19940 bytes |
SHA-256: 3ca485df5a82690d2c0fa762d2881387576cbc4b802fa5345a9f745b14466083 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.