MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this. No scripts were extracted, but the overall structure points to a malicious PDF designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://hiddencliff.kr/FileData/ckfinder/files/20210619_8F77077823571B04.pdf In PDF document text
- http://tienhasteel.com/app/webroot/upload/files/zuworafunen.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088254ad7284---86344575770.pdfIn PDF document text
- https://totounited.com/contents//files/41554658506.pdfIn PDF document text
- http://pfmconsulting.org/survey/userfiles/files/42621180086.pdfIn PDF document text
- http://teakdeck.pl/files/file/64802505110.pdfIn PDF document text
- https://cavalier-hundezucht.ch/userfiles/file/41067151567.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/uh2dupnd8s8ab1m1vlt0fq15l3/nugafejowenuronaj.pdfIn PDF document text
- http://gd-weimi.com/upfolder/e/files/20210626051326.pdfIn PDF document text
- http://cutskytools.com/d/files/tetotameridovapenewekez.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/kobezixegumifu.pdfIn PDF document text
- https://www.luthier-auxerre.fr/ckfinder/userfiles/files/murepatix.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/murawuzororap.pdfIn PDF document text
- https://mangalargalux.com.br/ckfinder/userfiles/files/gibadukebeloro.pdfIn PDF document text
- http://xn--j1aai7d.xn--p1ai/userfiles/file/lunave.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/5lvgvtd88okuo6qvohamkg9v37/5293538325.pdfIn PDF document text
- http://shreyaghoshal.com/konadnew/userfiles/file/48145781934.pdfIn PDF document text
- https://thefertilizerequipment.com/d/files/42882679135.pdfIn PDF document text
- http://yngc.ru/admin/ckfinder/userfiles/files/xurasanoga.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/999d4bea6a157febd74bff315d41a891/21996364899.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/b264a7274f26e6facdc7a37b0b981ab1/mopigokuxazazi.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082b05b95c3a---5597123107.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c217b99a754---xinusuxujumepusomipejono.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/18598981541.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=ejercicios+de+sinonimos+y+antonimos+para+quinto+grado+de+primariaPDF 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_off0000dc59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC59 | 11284 bytes |
SHA-256: adf7e84723ff4d9ffaf3737f23535e6cc655c89c2fc7df3c6f0c4ae59e7fb5a3 |
|||
font_01_sfnt_off0000f64c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF64C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off00010e5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E5E | 18184 bytes |
SHA-256: 9ae148cdf66d9d93aac483e81c20f42ab62b88866a2edb621a6a8d31f68db9bb |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.