MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are hosted on disposable domains, indicating a link farm designed to redirect users. The presence of these links suggests an attempt to direct users to malicious websites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://jiangsutravel.kr/userfiles/files/20210908_085037.pdf In PDF document text
- https://ceccarmehedinti.ro/userfiles/file/betobofaki.pdfIn PDF document text
- https://granitabrasive.com/editor_up/tiwerozoxot.pdfIn PDF document text
- http://kapsalonvogue.nl/files/file/ralulavojora.pdfIn PDF document text
- https://banghenails.com/upload/file/jijapufilawimiseporo.pdfIn PDF document text
- http://herfon-machinery.com/images/ckfinder/files/20210904211338.pdfIn PDF document text
- https://rajnnuhiddje.se/userfiles/file/kugipa.pdfIn PDF document text
- https://www.aledrukujemy.pl/ckfinder/userfiles/files/fesebevepuluwenatera.pdfIn PDF document text
- http://propertiesforrent.com/userfiles/file///64440775070.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a875485c88---dopimixekusalogogoke.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090109325373499.pdfIn PDF document text
- https://epagneuls-bretons.fr/caningest/images/file/guwovekidozi.pdfIn PDF document text
- http://gusanhightec.com/userData/board/file/34792304068.pdfIn PDF document text
- http://mrspk.com/ckfinder/userfiles/files/34380246981.pdfIn PDF document text
- http://fitviewer.biz/files/file/69716446821.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/91403117399.pdfIn PDF document text
- http://centonze-vini.com/userfiles/files/36490402929.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/079238033e113ee028c8190a77149225/67892395075.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/161304c9b87982---95338609938.pdfIn PDF document text
- http://samnakthodrahassob.com/userfiles/file/22274218893.pdfIn PDF document text
- http://espokebar.com/uploads/files/71588746707.pdfIn PDF document text
- https://polymadeniyaglar.com/fckeditor/userfiles/file/99629249592.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/bajuvaduru.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=light+up+the+sky+free+onlinePDF 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_off0000db29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB29 | 17628 bytes |
SHA-256: 5c3932215b454f8ab0c4c1e2974d00b45486ca9e89a6012eb80a407364814413 |
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font_01_sfnt_off000108fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012114.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12114 | 10740 bytes |
SHA-256: 0ee559cccbe991a5173207b01d75b178113453a41daac539f4c61cb096e7ea65 |
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