MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on compromised websites and potentially disposable domains. The presence of multiple unknown PDF files suggests a distribution mechanism for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://xn--fiqa735be48e.com/upload/files/xafugipepitewineb.pdf
- http://bartuceviri.com/userfiles/file/22272684505.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607031ef1db29---62284730661.pdf
- http://ktcz.eu/files/files/36972519546.pdf
- http://ytovietnam.net/ckfinder/userfiles/files/gusuberulumubufaxamober.pdf
- http://beergolfers.com./blog/images/file/83359822737.pdf
- https://hzautomatisering.nl/userfiles/file/meromorubum.pdf
- http://denprokhorov.ru/images/file/damatizudikiwipefom.pdf
- https://totspotdaynursery.co.uk/ckfinder/userfiles/files/mirisumoxuvif.pdf
- http://aajude.pt/backoffice/ckfinder/userfiles/files/motemalimafebibafegixog.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160be758c88811---lasinepozexepavotufexiv.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db90cd7547d---60142519430.pdf
- http://csc-020.com/userfiles/file/20210618190313_g5i11d.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/91949dd68c12a6c7cc9ca9c98a3bb5a3/28220574092.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083fb608316e---14364297223.pdf
- https://stmpallet.com/ckfinder/userfiles/files/90676149147.pdf
- http://islandpointfl.com/userimages/jomuton.pdf
- http://digifast.cz/userfiles/jukitusodig.pdf
- https://billard-hauri.ch/userfiles/file/vawax.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16074934ee5ca9---wejipejonakozufuluzunefez.pdf
- http://knowleangling.co.uk/ckfinder/userfiles/files/36428963365.pdf
- http://orderbestwings.com/uploads/files/zanutodorexokamaranotiju.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccf035d25c---gafotuva.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a84b0b7a9a8---gozavagekipipibolesujetem.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=buff+dudes+bulking+plan+pdf+free
- 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_off0000b777.bina98fbdfdfb36e47c58e908ae048f4dcbc509d266acc1255e22535ba75c4abf37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB777 | 10840 bytes |
font_01_sfnt_off0000d01f.bin3fd75a938c4a478b93e153281bbfd20febee0f30363de37bbb550537620d42c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD01F | 16064 bytes |
font_02_sfnt_off0000f98e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF98E | 16792 bytes |
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