MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to disposable domains and potentially compromised WordPress sites, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly indicates this malicious intent. While no scripts were explicitly extracted, the ClamAV detection and ML classifier output confirm its malicious nature, likely serving as a malicious attachment in a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://medvor.ru/uplcv?utm_term=columbus+movie+2017+watch+online+free PDF link annotation
- http://shannonlakeestates.org/fck_images/file/nexek.pdfIn PDF document text
- http://0-50.ru/userfiles/file/84112773861.pdfIn PDF document text
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/84067169751.pdfIn PDF document text
- https://abss.pt/userfiles/file/51885701244.pdfIn PDF document text
- https://afra24.com/basefile/afra24/files/78403336068.pdfIn PDF document text
- http://realestatespoznan.com/uploads/38252135230.pdfIn PDF document text
- http://saddabro.com/userfiles/file/viputunovezud.pdfIn PDF document text
- http://esejsc.com/upload/files/voxiwagexonopetofa.pdfIn PDF document text
- https://orsam.org.tr/paketler/ckfinder/dosyalar/files/zomewo.pdfIn PDF document text
- http://lotusburbank.com/uploads/files/96164632518.pdfIn PDF document text
- https://hotnews.md/upload/userfiles/files/29645738254.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/sumuwanuramibasaruxune.pdfIn PDF document text
- http://24hnbc.com/assets/ckfinder/core/connector/php/uploads/files/31802075137.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/66711279530.pdfIn PDF document text
- https://thebottombillion.org/business_school/uploads/file/noboleluxilelozi.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f5425ae5cf---50404808320.pdfIn PDF document text
- https://moolans.com/uploads/files/39750952587.pdfIn PDF document text
- http://www.hgbehringer.de/img/files/files/biperede.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffa564704e---dajorumuxopukajemawofuxe.pdfIn PDF document text
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/39389801806.pdfIn PDF document text
- http://hycxchina.com/filespath/files/20210905133847.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/86556436155.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613190ed5d4c7---walujopage.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_off0000dbe1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBE1 | 17828 bytes |
SHA-256: c715cf12ff497a92e4eb308f1561fadf50b798b43fc8842da297e9bac6460ac9 |
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font_01_sfnt_off00010a90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A90 | 11368 bytes |
SHA-256: a3b60daaac7f5c15c8e356bd724c7ef6dc95290febf1b7c1bc139e3ff03a7f01 |
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font_02_sfnt_off00012565.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12565 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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