MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains a link farm pointing to various domains, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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 https://philabc.ru/uplcv?utm_term=converter+pdf+em+epub+online PDF link annotation
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/2a6b94872dfb1b3c501542354b133da0/21470218985.pdfIn PDF document text
- http://elitacasa.it/images/file/58386734464.pdfIn PDF document text
- https://khonggiansachhanoi.vn/uploads/files/34879508015.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16138000b8085d---90287688243.pdfIn PDF document text
- http://metall-press.ru/files/xonuxaremoxupu.pdfIn PDF document text
- http://derp74.fooden.com/UserFiles/files/zijuzav.pdfIn PDF document text
- http://tzsunup.com/upload/nopitidoxoja.pdfIn PDF document text
- https://xnkvinatimex.com/uploads/files/23874542626.pdfIn PDF document text
- https://mtestbd.com/assets/uploads/files/8413571237.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143618a8fb06---47254008271.pdfIn PDF document text
- http://drukarnia-warszawa.pl/pliki/file/razujiwigurawus.pdfIn PDF document text
- http://handgun.ee/media/file/didonolofezugopisugoji.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/21056418685.pdfIn PDF document text
- http://tincorner.vn/uploads/files/tigowivedakafimesu.pdfIn PDF document text
- http://srtprogetti.eu/userfiles/files/gigadumosatoperijejozati.pdfIn PDF document text
- https://sssmri.com/ckfinder/userfiles/files/4387801274.pdfIn PDF document text
- http://chunmianxian.com/upfolder/e/files/20210903042909.pdfIn PDF document text
- http://goldstecq.com/userfiles/file/53207552988.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/4249292316.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/77nesqpn1ar5kl9k7q6inojb7n/35510094940.pdfIn PDF document text
- http://weingut-suppan.at/files/23184019300.pdfIn PDF document text
- https://navliecky.net/userfiles/file/gosafonobebopalavetumosi.pdfIn PDF document text
- http://bmcnx.com/userfiles/file/vizadop.pdfIn PDF document text
- https://clic-essc.ch/ck/ckfinder/userfiles/files/dugonajabeperotilugewotex.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1612f60478d0e3---korarobarikaz.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_off00010233.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10233 | 10664 bytes |
SHA-256: 8bc1380142d8debbd9b063a8bb68a39e70887e33673c32ebeb6786334cd3a87b |
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font_01_sfnt_off00011a5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A5A | 20336 bytes |
SHA-256: 4427cbfbee615112ca780c60f028f8d719e6076dfdefd82ef7aded53c29ce47d |
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font_02_sfnt_off00014e9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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