MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly supports this. While no scripts were explicitly extracted, the PDF structure itself likely facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 http://www.anclupnapoli.it/userfiles/file/bewomujiwerodavagiri.pdf
- http://www.yevres.fr/ckfinder/userfiles/files/gojenuj.pdf
- http://ineke-ott.nl/keramiek-beelden-imagesfile/kazukaronolatuvowem.pdf
- http://kasaitogo.com/uploads/files/lajudusinof.pdf
- http://fullerton.kopanramen.com/uploads/files/83148556538.pdf
- http://volkshilfe-vlbg.at/images/content/files/nelokinixofevab.pdf
- http://dongphat.net/upload/files/munagixudimixibolepab.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/a77e5751979530a82e3a9e842231183c/vanik.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d4f0e65a7c---zilimabovirunovawu.pdf
- http://www.jindatunnel.com/up_files/file/24719839174.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133979de5d41---dajufezovelasasa.pdf
- http://neuchina.org/userfiles/file/75140409437.pdf
- https://shatalarab-llc.net/userfiles/files/todalenod.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614796adde7e6---96860459936.pdf
- http://euroambulans.pl/userfiles/file/34463067519.pdf
- http://ljjxmining.com/uploadfile/file///2021100321211370.pdf
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/47241298639.pdf
- http://anquocrealty.com/uploads/image/files/puzopamez.pdf
- http://goforthegreengolfpools.com/userfiles/file/bugerunadojuruwuwaka.pdf
- https://dm288.com/slicice/file/52432518111.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614fd436c2cf0---lozifirovolerexubazumekil.pdf
- http://myslizdrave.com/soubory/39768022057.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130417d4f6c6---majuweginozokod.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=group+d+science+previous+year+paper
- 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_off0000b225.bin86ac3a446fc38f79e2a6a2b7d5b6c3785b7cb9afc7be0ac966c03af0b08d008d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB225 | 16380 bytes |
font_01_sfnt_off0000dbed.bin3766d6ff6ed934b005e934c92a2ea1fe3cb3a2b2337995ed334d3abf53182903 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBED | 10684 bytes |
font_02_sfnt_off0000f491.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF491 | 16792 bytes |
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