MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised WordPress sites and disposable domains, suggesting it functions as a link farm. This pattern is often used for SEO manipulation or to distribute further malicious payloads, aligning with the 'Spearphishing Attachment' and 'Exploitation for Client Execution' MITRE ATT&CK techniques.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://hohsingfiber.com/ufiles/files/somowozik.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af6a25396ff---11605248531.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609caa46884c4---fowegod.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a84cca1f7---vaxazimejorukupo.pdf
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/b6709ca35b85559f70f8aac5d46cae35/watutosubamidak.pdf
- https://licorne-hotel-restaurant.com/userfiles/file/soraporo.pdf
- https://almoheetmanpower.com/public_html/userfiles/file/xipegosif.pdf
- https://cplastik.com/data/cms/file/76499086702.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/bbagtj03jshnvlsu0rf7meu6q8/11375847270.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b876ac012e2---zagipajuz.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac64ac31eb7---jekirosatonurerimudagomo.pdf
- http://ssaisarang.com/ckfinder/userfiles/files/wutemukoberunepukop.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607165630a966---kusakonabediwofov.pdf
- http://cuuhoatudong.com/upload/files/21426660905.pdf
- http://rauvuonsach.net/images/uploads/files/61853885834.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/920f2eee972a34badfec7326e65de0a2/nexunapupugora.pdf
- https://akvaguru.hu/user/file/93045114464.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/40ca1e1c26c701e0e23b5dbfd0e1b6b0/bivetikajejuvegajad.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bee5fd85f07---wesokonep.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/ffe211fc9c57db2916a372ddb13c57ff/6213989509.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abbd484fee3---zevenadokitubipikufasix.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=lucky%27s+carryout+on+southern+avenue
- 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_off0000bf80.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF80 | 16792 bytes |
font_01_sfnt_off0000d797.bin2c71f5d9a73bf4197ab56e95bc2704c4bdc4b1506f792b8fd2ed2f67a57a3f09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD797 | 10552 bytes |
font_02_sfnt_off0000efc1.binf1f38d6c267e065b0485737741e439772f81ceeed655733f78ab4892b5e729be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFC1 | 16804 bytes |
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