MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. The file contains numerous external URIs, many pointing to compromised WordPress installations and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure indicate an attempt to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://crysiq.ru/uplcv?utm_term=live+football+live+stream+apk
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/126a6f2e796d43ded35de70f98b44228/90926521342.pdf
- http://hwayinn.com/image/files/20210905_161132.pdf
- http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/87938925848.pdf
- http://caycanhtuyhien.com/uploads/image/files/73162883561.pdf
- http://frutapac.com/ckfinder/userfiles/files/nevelaradisa.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/539fec8ad7539c2f0b3fb98285239c67/nalitifijagori.pdf
- https://sproname.com/files/userfiles/files/wizitute.pdf
- https://edu-mate.kr/_UploadFile/Images/file/gojajumavinikalipezijut.pdf
- https://makenie.com/upload/files/gubenozatukezizameviba.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/36dtnrdfjrracv2muv83n2kt45/24038268751.pdf
- http://espicycooking.com/files/file///22277561737.pdf
- http://adhunikjewellers.com/ckfinder/userfiles/files/43623399102.pdf
- http://a1climbing.com/userfiles/files/lezazetopalumup.pdf
- http://villabrown.it/userfiles/files/22689647029.pdf
- https://mjrspot.com/fckimages/file/nabojaz.pdf
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/8fee62a455c2dfa99d7f27145a535bd1/nadesixabanazopamizozag.pdf
- http://les-dvorik.ru/userfiles/file/51375031122.pdf
- https://olivierdaulte.com/ckfinder/userfiles/files/36676582237.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/6b218a781160c93a71f474823c2eadef/86429926309.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613113d1a2b7c---79133144895.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407fc5e3d34---rafelokuvefujuvijek.pdf
- http://www.primariasantana.ro/uploads/file/92558054303.pdf
- http://getwealthythisyear.com/ckfinder/userfiles/files/46356394686.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161346507aa4b3---xuwibupuj.pdf
- http://tcsm62.org/uploads/news/file/50784749460.pdf
- 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_off0000ef80.bin32dc94247d5567a54dc87fb7a084d7a51b39809a6a190dffc120b13da688bf91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF80 | 18000 bytes |
font_01_sfnt_off00011e0f.bin8b2f0374e155f6b36512ade97504bd8bf4c0b70376eaa3d1c3c57ec9f528c955 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E0F | 10668 bytes |
font_02_sfnt_off0001365c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1365C | 16792 bytes |
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