MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing content to analyze.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://die-elke.de/cms/elke_page_files/file/56147732918.pdf
- http://littlepearlbooks.in/data/eimages/file/22165892319.pdf
- http://omgmediatank.com/userfiles/files/jajuze.pdf
- http://stavebnevyrobky.sk/www/upload/files/66023056961.pdf
- http://www.keizerco.nl/userFiles/file/lokufimuwanelada.pdf
- https://voxel-avocats.fr/uploads/file/
- http://maekuangudomthara.com/ckfinder/userfiles/files/kekisutojola.pdf
- https://dm288.rs/slicice/file/suwazuraxex.pdf
- http://xaydungphongphu.com/uploads/files/89336778242.pdf
- https://santechnikosdarbai.lt/images/files/66836391847.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/tcs3g5n9habachuffm7v8ujja3/23455301591.pdf
- http://moscowprice.com/content/xuploadimages/file/tajobaf.pdf
- http://lauraestetica.com/userfiles/files/wefamonoreduku.pdf
- https://asiarsolutions.com/userfiles/file/87396917851.pdf
- http://chalappuram.com/userfiles/file/zovip.pdf
- http://hsaltsj.com/uploads/files/12112155888.pdf
- http://aptekarynek.pl/zdjecia/fck/file/55834661659.pdf
- https://twinslock.com/ckfinder/userfiles/files/2774231828.pdf
- http://alimentosldm.com/userfiles/file/dedaduw.pdf
- http://wonsakai.com/uploads/files/satajoropiremoniloderile.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a000cc84bb---55494924122.pdf
- http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/dategutopovudugifasanutis.pdf
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/84746496109.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1f3de8779---xabekiri.pdf
- https://careerexpo.alljobsinliberia.com/ckfinder/userfiles/files/boponejenejesusikamodi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=angry+birds+dice+play+store
- 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_off0000b36d.bin3832434edc972925fe36eaae471bef9cdf15ba25f4943d6f320ef63fae412746 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB36D | 16192 bytes |
font_01_sfnt_off0000dcbd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCBD | 16792 bytes |
font_02_sfnt_off0000f4d4.binf98e88c5d87284593a3a9bb5cf1686ed3c55f3de15ffca5897a7d2c7c4ca2989 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D4 | 10924 bytes |
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