MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting a phishing or malware distribution lure. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download an archive and provides a password, a common tactic to bypass gateway security. While no scripts were directly extracted, the presence of embedded URLs and the ML classifier's high confidence score support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://caytrong.vn/Images_upload/files/ributoro.pdf
- http://clinicaveterinariabilancino.it/userfiles/files/xokujaw.pdf
- https://castilloexterior.es/ckfinder/userfiles/files/86116129175.pdf
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/92833112987.pdf
- http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/fumenulomosano.pdf
- https://esz.jp/img/editor/files/20209527249.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1614040e575829---nibabixed.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/vuzowoxalowadumi.pdf
- https://toyotaautobody.com/ckfinder/userfiles/files/65043201627.pdf
- https://xn--80aesyq.xn--p1ai/files/file/metozeb.pdf
- https://gplacestracker.com/userfiles/file/75895460769.pdf
- http://videocycling.info/files/file/54117915023.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161394d104c6df---lowaki.pdf
- https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/kometow.pdf
- https://wietsevoermans.nl/ckfinder/userfiles/files/bubaxatizozedipularukijiz.pdf
- https://www.edmcenter.xyz/ckfinder/userfiles/files/wurukosotasexejuwerimil.pdf
- https://ptogel1.com/contents/files/40678445414.pdf
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/86145411111.pdf
- http://sipsak.nl/userfiles/file/67863761701.pdf
- http://nsk-nalogov.net/upload/files/16616033644.pdf
- http://cinstech-inspect-survey.com/fckeditor_userfiles/file/rokukimoxumawopavalirisut.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b9855e3091---zorogebuteraxuli.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=recuperar+mi+contrase%C3%B1a+wifi+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b509.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB509 | 16792 bytes |
font_01_sfnt_off0000cd1b.bin5ee1cc517eb49d3d45a48289fd44b3ab9e74533eafca1f3325e9e925bbc2fbdd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD1B | 18696 bytes |
font_02_sfnt_off0000fd63.bin91f94b2976a11b9c44f1c16afc2ff74a9694b097e10443c2b5b93b3cd1463b0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD63 | 11172 bytes |
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