MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as containing a link farm and pointing to compromised CMS uploads. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. While no scripts were extracted, the structure and URL findings indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://theurbanbazzaar.com/userfiles/file/fedura.pdf
- http://meyergarden.com/ckfinder/userfiles/files/jorumebawejupu.pdf
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/ximutozafemejo.pdf
- http://tungalag.mn/userfiles/files/waledolibarozixotifipiti.pdf
- https://vinocastillo.hu/editor_up/rovegopes.pdf
- https://igk-lilienthal.de/downloads/wuzijusewejilaj.pdf
- http://nj-rshb.com/v15/Upload/file/2021912648119915.pdf
- https://www.weldcor.ca/public/ckfinder/userfiles/files/verujaden.pdf
- http://korvet-sp.ru/userfiles/file/23509732483.pdf
- http://trumoi-khutrung.com/upload/files/82958170845.pdf
- http://lnianemarzenie.pl/userfiles/file/lemojatawewexag.pdf
- http://teraval.cz/res/file/vubaxixokijeson.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131988114321---betol.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b922a74c92---vojekad.pdf
- http://industrialsupplies.pk/userfiles/files/68937432048.pdf
- https://xcheck.vn/uploads/userfiles/file/52106406965.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161301cc88a7ec---kixobogolumojil.pdf
- https://texigo.tw/upfile/files/2021/09/07/84202514446.pdf
- https://sweetburden.com/upload/users/files/92302190703.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613112d98932d---wikeselozixanuxon.pdf
- https://braintreeclinics.com/app/webroot/img/files/gukixolugakufidivole.pdf
- https://sitarasign.ir/data/file/foxakejoxobokezoz.pdf
- http://rajskiewakacje.pl/userfiles/file/70204991373.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613154382353b---razifokosuvivobewot.pdf
- http://datcat.vn/2018/file/buzomob.pdf
- https://trisyscom.com/userfiles/file/89046877673.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=best+keyword+search+tool
- 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_off0000e318.bina5c2d6d4488b5cc85711fe2ba6455c4e7299e32765e159266d0e7be9fc7c2fe1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE318 | 17332 bytes |
font_01_sfnt_off00010feb.bind47a2f85cdaaea528e6e0059ce20f352166feacfd8a05e5d4ac02af0694904c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FEB | 10616 bytes |
font_02_sfnt_off00012885.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12885 | 16792 bytes |
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