MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It functions as a link farm, presenting multiple URLs hosted on compromised websites, likely to trick users into downloading further malicious content. The presence of 'urgency/deadline' language, though low-signal on its own, supports the phishing pretext. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134db7b53b71---fivotararonenazod.pdf
- http://taociren.com/upload/file/210910071314725436lch9jtir984a.pdf
- http://homeopathyhongkong.cn/files/burubunikefikonomaxaduvar.pdf
- http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///59694008341.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1614208d4e2a5f---27200620262.pdf
- http://stmrcstvm.com/userfiles/file/20178644374.pdf
- http://educasters.co/ckfinder/userfiles/files/kojogevoritoxuxovapa.pdf
- http://abwmarlboropike.com/uploads/files/24800363316.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/u3prpnltvp21k962qi8mr4k157/kewoberilapuz.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/7760d7554ef52c0f879eb7ab6efe012c/33273521803.pdf
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f450a39e56---pawigidaf.pdf
- https://aviatroglo.fr/IMG/file/dudutezupofimikodamok.pdf
- http://singer-island-condos.com/userfiles/files/24362567060.pdf
- http://tarnava.eu/user_images/file/nukofokabobog.pdf
- http://gandolfiarchitetti.com/userfiles/files/4842721663.pdf
- http://gat-asset.com/CKEdit/upload/files/20738052284.pdf
- http://abwvictory.com/uploads/files/zadin.pdf
- http://ptaki.info/imgekoprojekty/files/kokuvowo.pdf
- https://kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/bukizazirunuziwa.pdf
- http://hyunshin.net/userfiles/file/10057076981.pdf
- https://www.iieng.org/editor/ckfinder/userfiles/files/40576499917.pdf
- http://geriatriccarenewjersey.com/userfiles/files/71468158985.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=nutritional+epidemiology+walter+willett+3rd+edition+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_off0000df78.bin197fc377fdca27af225b9dc7c4175ca9bc723b72d737706d04c4cafbdf51b586 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF78 | 11124 bytes |
font_01_sfnt_off0000f945.bin3268750b032398a886cee198ce738c911ca69e2889fd25c41ef1387b2506a286 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF945 | 17984 bytes |
font_02_sfnt_off00012870.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12870 | 16792 bytes |
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