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 probability of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS uploads, suggesting a link farm designed to manipulate search engine results or redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or SEO poisoning campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b47a835d18e---kijuwofiwonemipat.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/0ceee0668e5a13bbbc508b53453807d4/41224834873.pdf
- http://asupuro.com/user_data/image//file/zisavusep.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d3e23aeaa---patedufobepigidej.pdf
- http://uniradioweb.info/userfiles/files/fivujaxovumu.pdf
- http://arcenevents.nl/site/upload/files/10920902731.pdf
- http://gernano.eu/gfx/userfiles/files/mosekijupemutuxidofifed.pdf
- https://acronimocostanzo.com/userfiles/file/31392143916.pdf
- https://puppometalli.eu/file/83591674081.pdf
- http://birkhoffhi.com/userfiles/files/xamonadidoxuwowidifu.pdf
- http://afghansolar.com/userfiles/file/xofafebujekubunifepaxam.pdf
- http://wphs67.com/clients/9/95/95f8299e8098c1f2c85aab0f7ead5e97/File/murupibexuzuvij.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160903c62cfad1---3129814238.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16076e3cd29881---kemofofudu.pdf
- http://tajeer.co/userfiles/file/57485429413.pdf
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a73075a730---gikogabemusegokulemuxana.pdf
- http://amon-syotengai.com/userfiles/file/wegumopetizizadazobotanop.pdf
- https://asi-filter.pl/files/file/47805057148.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d14f30c8db---fojog.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/wizazabimefuna.pdf
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/e8842894e42ed81aba1d1f6d1e879df3/51790001458.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160733b3d144f1---45739892181.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c9823fd60df---87777389751.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/g5bmvg576kn5qi3ksud3c8lrg1/wenonexusujisokonor.pdf
- https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608211abd9ec6---29478000217.pdf
- http://adabaskimerkezi.com/upload/file/popikarive.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=grim+grinning+ghosts+piano+sheet+music+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_off0000ed1d.bin24649936bbf2a5cc29b329aa4c72ca0b113a9a8d67d05b7e4784d570df0914fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED1D | 16904 bytes |
font_01_sfnt_off00011964.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11964 | 16792 bytes |
font_02_sfnt_off0001317b.bin6ca43071c35da70b0e226f2910168f3047b0886819e6a8034b07bb22388bddd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1317B | 11160 bytes |
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