MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed as a link farm, likely to direct users to malicious content. The embedded JavaScript, though not fully detailed, is a common vector for further exploitation in PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://unipsyclinic.com/userfiles/file/20210913224200.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16151a45f9f6d2---59119769473.pdf
- https://franciscovalles.comtraining.cl/userfiles/files/fubogujudonixugemud.pdf
- http://24horasnoar.com.br/ckfinder/userfiles/files/2250131241.pdf
- http://pk.mo/userfiles/file/5491985200.pdf
- http://autofactory-jin.com/js/upload/files/60171687146.pdf
- http://metaglas.kr/userData/board/file/4204937535.pdf
- https://kolkataangikar.org/ckfinder/userfiles/files/29833945407.pdf
- https://unitedfightalliance.com/ckfinder/userfiles/files/pavegodamowaterixesi.pdf
- http://sahrugs.com/userfiles/file/98335439962.pdf
- http://studiofelician.com/userfiles/files/14828633869.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131aee3914fa---romusarojipoduwovesisuli.pdf
- http://imhkayseri.com/resimler/files/47528176110.pdf
- http://www.lbtfilm.com/uploads/files/nefaxemalutemakase.pdf
- https://artbynela.com/uploads/file/5414939696.pdf
- http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/libenurovokuzukuselusus.pdf
- https://onutglen.com/caningest/images/file/55968814854.pdf
- http://domesticsolutionsagency.com/userfiles/file/85487791355.pdf
- http://rts-3.ru/upload/files/xetifuvuwigevunigeboban.pdf
- http://www.fred-robin.com/ckfinder/userfiles/files/56589733126.pdf
- http://yourbuilding.ru/userfiles/files/77641802438.pdf
- http://huseyindurmuslar.com/images_upload/files/xigagarakufubolo.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1614dcd89a032e---refijotinupi.pdf
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/lukep.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=chord+love+story
- 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_off0000af8b.binc490b3a93d57d4fc4e5451fafc13a18aaa6489822e38f69f423fe3b68ba03bff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF8B | 14928 bytes |
font_01_sfnt_off0000d50c.bin4924da8e200fa723481b6da548b503a063a8ca65051a23b5e586e24f3ed2e587 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD50C | 10196 bytes |
font_02_sfnt_off0000ec25.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC25 | 16792 bytes |
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