MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of numerous PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM firings strongly suggests the document's primary purpose is to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://pistant.ru/uplcv?utm_term=hof+free+spins+house+of+fun PDF link annotation
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/6664027b0018eeece16c151a7a6c7f91/nejesizozasexedizag.pdfIn PDF document text
- https://tumsad.org/img/editor/image/file/tudixanamadavo.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/4b522cf3a7cc1b9f42caae8108655491/zuborilena.pdfIn PDF document text
- http://yuc-fac.com/uploadfiles/20210915150416.pdfIn PDF document text
- https://remoteyourstaff.com/calisma2/files/uploads/babuvulekapu.pdfIn PDF document text
- http://skisun.it/userfiles/files/loludafawavaberubuxikonas.pdfIn PDF document text
- http://hakanhurdacilik.com/userfiles/file/kadutaporum.pdfIn PDF document text
- http://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/dovofuvawovukanetoxewiba.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/4ri0uspdhkiimohp1gbgjkkn43/1268184463.pdfIn PDF document text
- https://feldmann.pl/userfiles/file/fodas.pdfIn PDF document text
- https://arnetbilgisayar.com/upload/ckfinder/files/17719875023.pdfIn PDF document text
- http://terhautz.com/upload_files/files/60952154743.pdfIn PDF document text
- http://karthikeyanjayaram.com/userfiles/file/fokibuvewogo.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161402191100de---denugufu.pdfIn PDF document text
- http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gizuwikojirukol.pdfIn PDF document text
- https://nabil-doukali.com/userfiles/file/xexujupelojivu.pdfIn PDF document text
- https://lifeteacher.tw/uploads/files/202109032155358245.pdfIn PDF document text
- http://theonejsc.com/userfiles/file/86016537997.pdfIn PDF document text
- http://ktcyy.com/ckfinder/userfiles/files/losegesezozubijajebabal.pdfIn PDF document text
- http://newtrichur.com/userfiles/file/tiwefa.pdfIn PDF document text
- https://maintogelonline2.com/contents/files/26497768257.pdfIn PDF document text
- http://share-world.tw/userfiles/file/66990091335.pdfIn PDF document text
- https://tramhuonghanoi.vn/upload/files/lidazofewel.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0c494f63d---96755502375.pdfIn PDF document text
- 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_off0000bae6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAE6 | 10240 bytes |
SHA-256: 1ee68bbfb71cff590edf01c72576b6d782b437d6c2dcf5790630345ac3d9d437 |
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font_01_sfnt_off0000d1c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1C1 | 16720 bytes |
SHA-256: 6895b486c342566f1eb76577f562dac947746877b9b0886e137c9621974d6a0b |
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font_02_sfnt_off0000fd72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD72 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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