MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a link farm hosted on compromised WordPress sites, directing users to download further malicious PDFs. The presence of embedded URLs and the heuristic findings strongly suggest a phishing attempt designed to trick users into downloading malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16077b674d135d---zaxojexubulipufoxutisu.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c43ea67e2bc---22834951050.pdf
- http://fitviewer.com/files/file/misamak.pdf
- http://paradisoseminatrici.it/userfiles/files/gejemabokarinutanonetoz.pdf
- http://www.childofafrica.org/media/userfiles/file/79031533150.pdf
- http://stark-tools.ru/images/uploaded/38055281541.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/0662ea3ba992693021a3b77977aea4ad/piwodewukidukivukujisonix.pdf
- http://www.masozilina.sk/ckfinder/userfiles/files/49313634013.pdf
- http://fabiocaronearchitetto.com/userfiles/files/88166498275.pdf
- http://sattamatkapatti.com/userfiles/file/89089900869.pdf
- http://hotelborgodeipoeti.com/userfiles/files/88380764836.pdf
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/4311b7ee1cc2b21a1dddb8445cdd7eaa/80906764199.pdf
- http://matkinhantai.com/luutru/files/38803779694.pdf
- https://nezrenpin.com/calisma2/files/uploads/21834841286.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/5cc70c557cb403473f97aa2409c56619/popodaxetem.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c7aff7b9115---buvutexatemikuxolom.pdf
- http://sibservis.com/ckfinder/userfiles/files/zijivolulexowokeluvebo.pdf
- https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/fujofuvirunubasiroworiz.pdf
- https://harkakotony.hu/UserFiles/file/rivilop.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c280e0559b4---93140804780.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ffb85f192---89221246890.pdf
- http://enidental.com/userfiles/file/20210730224457.pdf
- http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gafedugazupumepumi.pdf
- https://shriramsteels.in/public/ckfinder/userfiles/files/gemejepuporagobataw.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=freestyle+optium+neo+h+manual+portugues
- 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_off0000e567.bine9239b333d373bcb02f18d7237e727bab40de8cbb4b1e94bcd264a6959c91caa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE567 | 19720 bytes |
font_01_sfnt_off000116ba.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116BA | 16792 bytes |
font_02_sfnt_off00012ed1.bin444557ef014dbc1fb58186ea1f63ee4dc6e955d7b432a7a4dce90579b32c0bbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ED1 | 10892 bytes |
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