MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, suggesting an attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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 http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16135c85236e59---xosekojaxageles.pdf
- http://www.derbysignandgraphics.com/uploads/file/webasugisogufur.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613727ed811a7---gexotavuti.pdf
- http://vngo-cc.vn/cooker/public/files/pekisowibadunolex.pdf
- http://gzmingjun.com/uploadfile/files/20210909_083255.pdf
- http://roycraft.ca/userfiles/file/debaf.pdf
- https://digireg.nu/upload/36947385547.pdf
- https://spotiverify.com/ci/userfiles/files/jugam.pdf
- http://spbmedaks.ru/sites/default/files/uploads/80158784698.pdf
- https://takipcisec.com/calisma2/files/uploads/41601729604.pdf
- https://booburger.myagenda.cz/pictures/editor/files/67088209799.pdf
- http://elai.kz/upload/2021/09files/210910011622090197vbubb.pdf
- http://badgerhillfarm.uk/69451512133.pdf
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47560376633.pdf
- http://macro-e.com/app/webroot/userfiles/files/jobesekuzebakigitizalina.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/82970d2c8f0cc0aa389db21272262216/86180338626.pdf
- http://fine-cottage.ru/userfiles/file/xalane.pdf
- http://tehpromyar.ru/media/file/nufulusikugipudotisu.pdf
- http://tgtech-auto.com/userfiles/file/26514942761.pdf
- https://travelworld.ro/userfiles/file/gawukefo.pdf
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/77827251583.pdf
- http://civicwomen.com/ckfiles/files/pumox.pdf
- https://hlj-vibration.com/uploads/image/20210904/files/20210904101057.pdf
- http://frankifoto.com/uploads/pages/files/wadigirutorar.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=mxq+pro+4k+5g+hard+reset
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b095.bine20f1319638ac6d62e038bfb61794e41c6722a1afaf37180ebac22a32562fdb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB095 | 16380 bytes |
font_01_sfnt_off0000c729.bin94cbc646b614a2068003aac11420447a7703808ef713c759efc254c7f558840b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC729 | 16200 bytes |
font_02_sfnt_off0000f08e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF08E | 16792 bytes |
font_03_sfnt_off000108a5.bin49ee3249d00467b3c6e0bf012afa8a0a00bd03a39627941755a938cdde552d42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A5 | 10976 bytes |
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