MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 7
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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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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://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/9aivcebpm28takufeu05dhgpan/7413810268.pdf In PDF document text
- https://www.nvsrolko.org/ckfinder/userfiles/files/vumapefidinenamobe.pdfIn PDF document text
- http://pitchdecor-construction.com/user_img/files/ronamenejumosig.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/afa484f1402b8d6b0904f8e98f3d64f8/zozarezedilexakogaza.pdfIn PDF document text
- https://cometsecurity.in/admin/userfiles/file/95600800606.pdfIn PDF document text
- http://ongxoanhdpe.vn/upload/files/60974193130.pdfIn PDF document text
- https://tosto.cl/ckfinder/userfiles/files/gekub.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/566d1030d6b56c0d8ba3393a6cd2bb8b/dijaxolijix.pdfIn PDF document text
- http://osrclass1967.com/clients/8/84/84e84eb3bb32f45446e669e24fea3ebc/File/vululetisumek.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/a413f112f68ce37fe16b2bf3ab36ab87/46463428292.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d5e012f14---suxosudaridefilobapav.pdfIn PDF document text
- https://zbmbudomont.pl/userfiles/file/rewulokazi.pdfIn PDF document text
- http://elementsgogreen.com/userfiles/file/wuxixuvejuvuxapad.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc1934d25f---zisowusipunuxofewoze.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/13b8b07f0252df7f61a3a13da5433c02/vurovetuno.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/97040899792.pdfIn PDF document text
- http://bukharaatlanta.com/sites/default/files/file/57802538075.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609505a5051b0---dugefabefosijulivozegane.pdfIn PDF document text
- http://ayhancevik.com/images_upload/files/92692104669.pdfIn PDF document text
- http://purifoy2020.com/clients/1/11/118d8b7ee1ea4bab8fb19da95c56260f/File/vokazibexipawelewuriko.pdfIn PDF document text
- http://eros-arena-reutlingen.de/eros/userfiles/file/lufiporonerixawokemiji.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/1629039043113.pdfIn PDF document text
- https://szekszardportal.hu/userfiles/file/89069921301.pdfIn PDF document text
- http://barnesfamilyconnection.com/clients/f/f3/f37d50667a1bb99e511e26172889fab9/File/peranavemerevenoropadowa.pdfIn PDF document text
- http://aweibel.com/Photo/file/vavasugopepimi.pdfIn PDF document text
- https://mvpartners.be/images/uploadedimages/file/jexusizijuzejuse.pdfIn PDF document text
- https://samowar.me/upload/file/gidefiresenozev.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=cf+ph+manual+patch+june+18+2019PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bfd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFD9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F0 | 11196 bytes |
SHA-256: 3a4be7dbbf8176c86acc328c7fc989e0c853f6f43461d1a1e399e5d16de20530 |
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font_02_sfnt_off0000f226.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF226 | 17708 bytes |
SHA-256: 759932f5e411549e16a95fbae100e4ae4dee5fb7e93e3ea3526de8a0855b1466 |
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