MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm on disposable hosting, suggesting an attempt to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a likely intent to deliver a second-stage payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://reylab.com/userfiles/file/repaxunetig.pdf In PDF document text
- http://www.slenderclub.cz/ckfinder/userfiles/files/toged.pdfIn PDF document text
- https://egyptsuntours.com/userfiles/files/77954134795.pdfIn PDF document text
- http://yuanjiangchem.com/upload/files/wetewifelezevovuvekege.pdfIn PDF document text
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/41707038000.pdfIn PDF document text
- https://crownprolaw.cn/userfiles/Proj_Name/files/40618907069.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/gubopareta.pdfIn PDF document text
- https://tootooair.com/FileData/ckfinder/files/20210920_C9CEA615B53C6D9B.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161401037de8bd---41286888709.pdfIn PDF document text
- http://montesantangelo.it/files/files/jaresosezizus.pdfIn PDF document text
- http://solarexperten.ch/fckeditor/editor/images/file/26795527150.pdfIn PDF document text
- http://www.lovebliss.tw/UserFiles/files/39012778281.pdfIn PDF document text
- http://www.civilhospitalpalampur.in/img/uploads/files/28979269472.pdfIn PDF document text
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/56960056878.pdfIn PDF document text
- http://hfnhsw.com/upload/files/16386767871.pdfIn PDF document text
- http://greenworx.eu/images/uploads/files/zivafateduwamaxavixuxewi.pdfIn PDF document text
- https://vinacomvietnam.vn/uploads/news_file/disuvotim.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143cbb713dab---totavatopifepexufeminozeg.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109071649572876.pdfIn PDF document text
- http://www.gpe-el.pro/ckfinder/userfiles/files/vifoze.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/ebdf01609d1d6d2c58ad25fdd09378b5/2483643642.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=a+quiet+place+2+watch+online+123moviesPDF 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_off0000e728.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE728 | 18340 bytes |
SHA-256: a4e549c5ca567c8e50b5956b1cb5c2ab003e5318ac1bc032d4d5f37ebb590905 |
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font_01_sfnt_off0001164a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1164A | 11264 bytes |
SHA-256: 1b988e679f3b04de432d23ef1f4f15c6c4d3f330fb42fd6e7ee10f6e2989c3c5 |
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font_02_sfnt_off000130c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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