MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF sample was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to redirect users. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c87b9eaf07f---vugulemomavugak.pdf
- http://anupbolivia.com/images/files/fivezabovekolerisebiji.pdf
- https://anfauglir.com/images/file/zitalusaludewadebu.pdf
- https://hardlineconstruct.ro/app/webroot/files/userfiles/files/tikasosuxuj.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160f1f8ba13406---kikawidudakajivogagolixok.pdf
- http://tikatalog.sk/_files/file/55815368747.pdf
- https://biocoop.legreniervert.fr/ckfinder/userfiles/files/kofilatutigugajadolitusuk.pdf
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/wizudinotamutuzo.pdf
- http://konferencii.org/js/ckfinder/userfiles/files/77273592098.pdf
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/69139815019.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608551df194bd---wajujexuxolutefewix.pdf
- https://akonis.ch/userfiles/files/ditudagimoto.pdf
- https://emenu.hu/editor_up/58554752476.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f925c648d09---71309427621.pdf
- http://kimsanghun.com/upload/userfiles/file/20218141445234025.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096aed1763c2---1356748536.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/547ba7fb5bfced8e9ca59f17369c43e7/28953895196.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/395ed4ff73eeb7787fc150c7124bd3db/futojaviburani.pdf
- http://thienanglass.vn/upload/files/38904900269.pdf
- https://tractorpulling-emmeloord.nl/upload/file/jekososifipaxalugigis.pdf
- http://studiotecnicolari.it/userfiles/files/63276884981.pdf
- https://badrivishal.com/media/14197652146.pdf
- http://www.gieskestukadoors.nl/ckfinder/files/files/23534067891.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/7eb6b62ad91f660907877445fe5b8513/59091988132.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=manual+de+uso+tensiometro+welch+allyn
- 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_off0000c4f5.bin0c354c17e9753397c79cae5691307df98c6df0fadedfe737d8a346f31f1adef4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4F5 | 10928 bytes |
font_01_sfnt_off0000de20.binfcb40cec64e9e21dfeb9fe46f6e0633d7dde5056dda1ca6364f96b982610a49a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE20 | 19208 bytes |
font_02_sfnt_off00010f7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7A | 16792 bytes |
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