MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. Heuristics indicate it functions as a link farm, pointing to numerous distinct hosts, some of which are associated with compromised CMS uploads. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL patterns suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://geostudio.eu/userfiles/files/43712891227.pdf In PDF document text
- http://recviem.ru/img/upload/kirosiz.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0c9055a4c---wudawulaxomigonepowu.pdfIn PDF document text
- http://mulroyenvironmental.ie/userfiles/file/rulemewepi.pdfIn PDF document text
- http://delta-serwis.pl/pliki/wixeg.pdfIn PDF document text
- http://dmkert.hu/files/file/turinogerisonajezesixuku.pdfIn PDF document text
- https://www.douggoodkin.com/admin/ckfinder/userfiles/files/17185099269.pdfIn PDF document text
- https://sharmtocairo.com/userfiles/files/10821851366.pdfIn PDF document text
- http://aaykpn.com/uploads/editor/files/57311526826.pdfIn PDF document text
- https://hurghadalife.net/userfiles/files/zidefebukopuluf.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140344876def---89081092940.pdfIn PDF document text
- https://tradingcall.in/ckfinder/userfiles/files/domejurubunatagavoxubotot.pdfIn PDF document text
- http://filipdegreef.be/uploads/files/24192849658.pdfIn PDF document text
- https://sassanoproperties.com/FCKeditor/file/73656737355.pdfIn PDF document text
- http://ingpoggi.eu/userfiles/files/56308294695.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16133d21eef181---9740786502.pdfIn PDF document text
- http://builderall.info/userfiles/file/98380446318.pdfIn PDF document text
- http://hkwwta.org/userfiles/fizerepiwipetoliwigurif.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/xobiwilu.pdfIn PDF document text
- https://ibextrail.com/editor-images/wubebisosoge.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161376a208a36f---pabatutixizezowori.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/99059919498.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=chrome+2019+apkPDF 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_off0000d562.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD562 | 17184 bytes |
SHA-256: 5553f76fa4a3fd2f49e3c9b5a480b2f540c9f70656620f507619c402b13450bb |
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font_01_sfnt_off00010274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10274 | 10592 bytes |
SHA-256: 6dac979d107f1ae1109793c457510747747d11404ff4ddefdf825225b34ebd62 |
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font_02_sfnt_off00011ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AC5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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