MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal the PDF acts as a link farm, directing users to multiple compromised WordPress sites and disposable hosting domains. These links likely serve as a distribution point for further malicious content or phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://investin-khj.ir/ckfinder/userfiles/files/69976699718.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607594b020067---xizapifivenaverurizi.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/rvh2n3da6uccdq4i7ke82sdi0i/laderigopakileda.pdf
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/23541c97904091012e8a1083e32730a4/wubasimabeporakerupip.pdf
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16084e9799f5e6---75869831647.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/9487611a8f36f8086d2945d4981aaa22/86702127159.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16090edb9c1ae5---9178084827.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e39e5177d35bddae861141689178ce7a/15292361372.pdf
- http://www.celso.org/download/84059756447.pdf
- http://bjaimama.com/data/upload/2021/05/file/202105112112596649.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a4eead441---wubitenetawovogitutagogut.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742855a98fd---titipuwulomepuze.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/1b09b19320c4c06cc224a5fe016ede7e/16616249711.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/j5m27ds613vpicaqe3i7dt8hoh/60510412644.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42e81337ff---dafuzif.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c9f6b225d---wivinafenavuzamusolanave.pdf
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/nnr85orcmkhg1p3ed6q30qki4o/37221951815.pdf
- https://ringid.vn/ckfinder/userfiles/files/2807329048.pdf
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/c520770f4836b75acb68ef98ed04a277/55279422781.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1816b64e8c---tapalasasetawitopifixiw.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/4d90c460b21c121887087f1f9991fb1c/momegukulinesoxus.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/jjsr6upo0viipu2gpr14k0gej3/47221318923.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608394ff30341---12514078878.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/76b32207b583247d636932cda1e35e57/gokes.pdf
- http://www.lugashotel.com/data/editorfile/10732303051.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=ulcer+type+dyspepsia
- 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_off0000d5c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C4 | 16792 bytes |
font_01_sfnt_off0000eddb.bin41c06bda839e81cfc3f53fe5415713aa80828fcb44c8a88e04b17f56e578b3f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDDB | 10404 bytes |
font_02_sfnt_off00010586.bin4746199857ce06caebc70ab91b4bd1c2bbbf3d59a16b4d8e02f984c9ee757c88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10586 | 16664 bytes |
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