MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links to external resources, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to potentially malicious sites or phishing pages. The presence of embedded URLs and the nature of the link farm heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://drafthe.ru/uplcv?utm_term=delete+gallery+photos+android
- http://otestmanager.org/club/data/userfiles/file/20210902012703.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c69dd09977---88609231762.pdf
- http://benedictinoselrosal.org/ckfinder/userfiles/files/94202101942.pdf
- http://appli-veolia.net/ckfinder/userfiles/files/zojuruvevonomibisopitur.pdf
- http://kartelabasligi.com/images_upload/files/78832982302.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ios3v2qkmtfaepr7oiiad0a226/pubipesimi.pdf
- https://deltarents.com/upload/ckfinder/files/24880418922.pdf
- http://baigeleather.com/userfiles/file/71399126818.pdf
- https://beauty-full.ru/uploads/files/56138818940.pdf
- http://thermogroup.ru/uploads/files/67499580899.pdf
- https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/nadumixegura.pdf
- https://granitabrasive.com/editor_up/mavafuzakivogexetukosavag.pdf
- https://bya-ingenieria.com/ckfinder/userfiles/files/losekafovofupazaji.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338e2fa5ebc---wunaxobataboto.pdf
- http://labradory.pl/file/kesetuguxetuk.pdf
- https://minhvuongthuphap.com/upload/ck/files/2385703286.pdf
- https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/fusitediloxemizabeto.pdf
- https://gkia.org/kingkong/userfiles/files/fivopemegine.pdf
- http://jshtextile.com/UserFiles/file///51448538517.pdf
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/24155466718.pdf
- http://skonasystems.com/userfiles/file/niwitu.pdf
- https://laplacedesstores.com/upload/file/8039010962.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/a8a2c4ce1244880f4cd640228e1b8ce6/98025215534.pdf
- http://bangiyaparishadtoronto.ca/bpt/editor/uploadfiles/40005818054.pdf
- 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_off0000d7c3.bine2f53f99e13f0cd4da378f840558f8a15e5a88be2ebeb468bb14b3885e24182d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C3 | 10784 bytes |
font_01_sfnt_off0000f05a.bin278847d76234e1b2798a2f8f4b692565febb6dfbd5bc3ed1a82b13d24861cbfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05A | 18172 bytes |
font_02_sfnt_off00011f4a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4A | 16792 bytes |
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