MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to disposable hosting or compromised CMS upload directories. Heuristics indicate this is a link farm designed to redirect users to other PDF files, likely as part of a phishing or malware distribution campaign. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://laborke.ru/uplcv?utm_term=walang+hanggang+paalam+january+7+2021 PDF link annotation
- https://ooo-kenk.ru/userfiles/file/41613066224.pdfIn PDF document text
- http://cuspsurgeons.com/userfiles/file/86914421742.pdfIn PDF document text
- http://viral-list-monster.com/ckfinder/userfiles/publics/files/xotex.pdfIn PDF document text
- http://whkmradio.com/userfiles/file/keruzavesulopegor.pdfIn PDF document text
- https://deltarents.com/upload/ckfinder/files/buvonugudefobunepukidapev.pdfIn PDF document text
- http://gzafjc.com/uploadfile/files/73245363223.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16143144a350f5---gagukulaturiduditajogumep.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/36873892338.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/sozegumuxuxu.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/v7h29kv3hhs2jt3qv282oqmaej/fogenewukotuxa.pdfIn PDF document text
- http://www.bongbansaigon.com/uploads/files/24289578315.pdfIn PDF document text
- http://topbondtape.com/uploadss/file/sukefutixepidisujesewudu.pdfIn PDF document text
- https://landatur.com/files/galeria/files/86842531533.pdfIn PDF document text
- https://kapefashion.com/files/files/wokexalejapebineluw.pdfIn PDF document text
- http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/86043627726.pdfIn PDF document text
- http://traslochimontalto.it/userfiles/files/joroz.pdfIn PDF document text
- https://brihat-group.com/assets/userfiles/files/14021950648.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/a637b64a05035b615ab8cbe4447dfb15/sekubokizazunatul.pdfIn PDF document text
- https://cmfnepal.org/userfiles/files/zolikefesoxetimanimuneg.pdfIn PDF document text
- http://cjmfgxfollow.morefriendship.com/upload/files/73401435978.pdfIn PDF document text
- http://expertsystemgroup.com/file_media/file_image/file/16491381514.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_off0000b663.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB663 | 10772 bytes |
SHA-256: 5e9f38bc4230a5b66b9e2365bf0460e76d02682a5e27050117dcc557f5393159 |
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font_01_sfnt_off0000cf15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF15 | 17112 bytes |
SHA-256: 229da9c082efda3e3d62b72abb596c6c4290a2a9098954de26a9cfc4e0a209b7 |
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font_02_sfnt_off0000faf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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