MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of embedded URLs, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9941
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://oniceh.ru/uplcv?utm_term=tracking+pollution+a+hazardous+whodunit+answers PDF link annotation
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160727a81a354a---82687754109.pdfIn PDF document text
- http://ferrogep99.hu/static/media/file/15899215544.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/hu7ube10pl4rcr1oamqf7mcqud/jubilagimufozu.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/40049b08f65381cb92aa3e98db183181/gobexuxelisawedubepu.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/95168857655.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c12bad87aa8---41982622597.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607cab9a7914c---30117372310.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609568e44026c---gawazavudafesi.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/vjpqvnq9ult76ke1li569msugn/gobar.pdfIn PDF document text
- http://chemonova.com/FCKeditor/file/wasozosiko.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/16323166018.pdfIn PDF document text
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/e26e73372fe82491a50449b8c786c501/dasukajusudiwovenejuwovew.pdfIn PDF document text
- https://twfern.org/upload/ckfinder_temp/files/20210531193313.pdfIn PDF document text
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/3784ae1984902a878c9189f0682f9899/83786719875.pdfIn PDF document text
- http://homeopathyhongkong.cn/files/zadekeforiwimefanuvib.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/ff26f13234329a45e6dd13fb27f62001/12467258409.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/31a1627caf7b19f5c1771d9199da18f2/lirutuwoje.pdfIn PDF document text
- http://peneleos.pl/userfiles/file/91984135968.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/b531612911d3983c90a0788f6842706a/65547124311.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/guler.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608820b4232ff---41868319332.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a9c9085ab---xoligixinugalinuxutuwaj.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e908.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE908 | 18976 bytes |
SHA-256: 5ea7dda003f9433aaa1a97ed4e282b751dc62582f83e6c927b8fa9d9f0192413 |
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font_01_sfnt_off00011a3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3A | 11092 bytes |
SHA-256: 6c9b826ebfa436ca3c31681023f30f2cfaa44da99e4ff647755e38a89ed6428c |
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font_02_sfnt_off000133f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133F3 | 16104 bytes |
SHA-256: f06cddf61c9925e39e47a8b8d88d5d2c108808d867bf63b528aab798a6fb49b7 |
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font_03_sfnt_off00014949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14949 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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