MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that point to PDF files hosted on various domains, some of which appear to be compromised WordPress sites. The presence of 'utm_term_redirector=True' suggests an attempt at SEO manipulation or traffic redirection. No scripts were extracted, but the PDF structure and URL patterns are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://ahdjcm.com/upload/files/vekiwil.pdf In PDF document text
- https://smilaxlabs.com/userfiles/files/xavilibifenepemem.pdfIn PDF document text
- http://marathon-gexin.com/Uploadfiles/files/xagivirawabetoxat.pdfIn PDF document text
- http://olymp-kiev.com/temp/fckeditor/file/sovil.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/54675153761.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20210926_1FD819C967104FBC.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1616aaa5a283a8---kufuziloligigodozid.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328a6630739---92460494943.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/51371167120.pdfIn PDF document text
- http://interstyle.org/content/xuploadimages/file/43993034306.pdfIn PDF document text
- http://kliknetezde.cz/admin/obrazky/file/91526541750.pdfIn PDF document text
- http://smsalumni1971.com/apadmin/uploads/userfiles/files/tixag.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16164e21e77970---fejovoditubujarike.pdfIn PDF document text
- https://tecnicadovolante.com/images/file/wotemu.pdfIn PDF document text
- https://bem-sa.com/img/file/87770642065.pdfIn PDF document text
- http://twgo8.com/uploads/base/files/202110010220349436.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161471bdfe5ef1---gilifazer.pdfIn PDF document text
- http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/nibutevosusoxatavovof.pdfIn PDF document text
- http://msslink.ru/userfiles/files/kivubikoganirizin.pdfIn PDF document text
- http://yuqiaohome.com/uploads/files/202109020647454801.pdfIn PDF document text
- http://nocleginaplus.pl/uploads/userfiles/files/8773420878.pdfIn PDF document text
- http://thelonerangerfanclub.com/ckfinder/userfiles/files/kiwomibukuvezijopogem.pdfIn PDF document text
- https://euforbiabulgaria.gbinvest.net/uploads/pages/files/zexubimosufewosevotazide.pdfIn PDF document text
- https://silky.ae/images/bulk_images/files/54025610597.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/HKUGBsJGI0E/uplcv?utm_term=write+types+of+motionPDF 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_off0000e1aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AA | 18536 bytes |
SHA-256: 13d34b366dbf34919b87b345e2eb9fa293584df3df6991f4d8a3f6abcdb39a7e |
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font_01_sfnt_off000111c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111C1 | 10420 bytes |
SHA-256: c1da35d4a7688e8112123f96308e9f69a09d458b865e1f5197d5ed49d715a752 |
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font_02_sfnt_off00012964.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12964 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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