MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://krisoc.ru/uplcv?utm_term=lightning+map+app+android PDF link annotation
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613617e6c6bb5---xokibejidaporub.pdfIn PDF document text
- https://inprovitparaguay.com/ckfinder/userfiles/files/fupagowumenoledosixedefax.pdfIn PDF document text
- http://tecs4.com/intranet/ckfinder/userfiles/files/tanuvumokimevidagarevasef.pdfIn PDF document text
- https://alcoquimicos.com/ckfinder/userfiles/files/voradakomefijuzapirinam.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/0fcad5aea99c2a5b79ee78ca4f57dc6e/melotopat.pdfIn PDF document text
- http://toyotarent.tw/FileData/ckfinder/files/20210902_D715ED5C13E7A24A.pdfIn PDF document text
- http://zenobiacultura.it/userfiles/file///poguf.pdfIn PDF document text
- https://rm-parketi.si/uploads/54565333012.pdfIn PDF document text
- http://shopcode.ru/uploads/file/71810412924.pdfIn PDF document text
- http://dgone.kr/userfiles/file/20210909060415.pdfIn PDF document text
- https://desense.eu/uploads/wysiwyg/files/20988835165.pdfIn PDF document text
- http://www.petercar0937494634.com/upload/img/files/gosalulo.pdfIn PDF document text
- http://finpacecuador.com/userfiles/file/91229885738.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1613924009e863---59378243218.pdfIn PDF document text
- http://happyorderfood.com/uploads/files/90633283085.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161365988609c6---fatuvoxudumaluxebelof.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/626d31be5f33b7abfaa4712d954a683d/jezededenuk.pdfIn PDF document text
- http://limuzine.md/userfiles/file/fowusizidiweze.pdfIn PDF document text
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613002d626b8f---95299034369.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/fojadobemabol.pdfIn PDF document text
- http://interroadholland.nl/userfiles/file/40882949483.pdfIn PDF document text
- http://harlit.com/upfiles/file/38890614810In 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_off0000e7f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F9 | 18056 bytes |
SHA-256: 010ab80c89b9d2f81fb225132c79c52ac118ba9b4ffcc9fa460822b1dbca5173 |
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font_01_sfnt_off000116d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012eef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EEF | 10452 bytes |
SHA-256: 009980b2ebb4a33c32e8e6b6850330d917fe35849310de30cfa147c1a6817f33 |
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