MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs hosted on compromised or disposable domains, which is a common tactic for phishing or malware distribution. The presence of multiple PDF-specific heuristics related to URI and link farms further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 https://krisoc.ru/uplcv?utm_term=gartner+magic+quadrant+firewall+2017+pdf PDF link annotation
- https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/4dce2a8b5d1d3774e1b357bc2fe80c92/levaluwikomafitufokuzeba.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/342da07841b66564b9bb6b9281b5582c/fipebafifikolozeve.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a2b068dbe---5955809630.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/4840645899.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/db2bfe1841b0914ab4481a02a707eda0/21434698907.pdfIn PDF document text
- https://polytex.de/sites/default/files/43993465125.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c66e7b358---44357713333.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/1ba6755bda0ba3fc54e2d900e89f2b63/51646333983.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/49975321510.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/57214729706.pdfIn PDF document text
- http://rc-mst.com/mst/_upload/files/bepewoxilubore.pdfIn PDF document text
- http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210831182136.pdfIn PDF document text
- https://myparrotfood.com/user_files/files/jigebix.pdfIn PDF document text
- http://cedule-plachty.cz/files/file/lufilevujil.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1611a2baa224de---xibolufigavogadolub.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077986dbf8b7---fumilelunek.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607138b0e35c7---xoxijixukabezejafolimu.pdfIn PDF document text
- https://www.willmarareachamber.com/ckfinder/userfiles/files/66012418906.pdfIn PDF document text
- https://silverwayshipping.com/userfiles/file/vajipuluwibudotupomuj.pdfIn PDF document text
- http://asremajazi.com/uploads/files/60104412741.pdfIn PDF document text
- http://gekon.net/userfiles/file/4860472866.pdfIn PDF document text
- http://bebelino.ru/userfiles/file/zukukeputipeba.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/3c168680e6ca81be3bb07df57552a174/6008980293.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/89a05c378093863e96a873774e4e833b/93224608233.pdfIn PDF document text
- https://arerp.kr/data/file///kutulimatesepijetebak.pdfIn PDF document text
- http://greenmodels.ru/uploads/files/9527701616.pdfIn PDF document text
- 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_off0000e270.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE270 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA87 | 11388 bytes |
SHA-256: c084a4a625ca7c1303eec6633ebddac696cc1e6927fed47ba613b95486f2f67d |
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font_02_sfnt_off0001150b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1150B | 18396 bytes |
SHA-256: e11f05a0359b8aa301c3ac43a2e39a5a45af9b9728061adb2aae23a3a83e0209 |
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