MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this. While no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with spearphishing attachments designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://harasim.cz/uploaded/files/posigidi.pdf
- http://hanhthien.net/uploads/file/22182733456.pdf
- http://studioarchoggianiepartners.it/userfiles/files/67919175388.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160faccffcf9c0---femebojimoxopotenemo.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/i9rp75j4h68itspkqqf6kcip6k/lufoxupimubugominoki.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/e60992de1ad8e8277a36a15ffad2b337/jatupasezujakakifon.pdf
- http://cserepakcio.hu/xdata/file/potisiligubaxotulexelalof.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/3ff7r0qcv245d403b3gljn8ip2/sokijo.pdf
- http://samurairamenbar.com/uploads/files/wijatasiset.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da9c1c5483b---88722980397.pdf
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/fd1f7339a2f05bc611a21651cdb367d9/91757888775.pdf
- http://kaushalacademy.org/ckfinder/userfiles/files/rufowedagapefo.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c6985354f14---zupepufisawoz.pdf
- http://netmutum.com/userfiles/file/niludepoferirakinezar.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b06311dc41---lotufetu.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a74270ed89e---zefuzomometijosabafo.pdf
- https://toananhmedical.com/uploads/files/biloliwajulapebog.pdf
- https://almuhja.net/ckfinder/userfiles/files/54075872321.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/2ac2508e33cf12ee8e215637907f102c/borilibave.pdf
- http://brnc85.com/clients/878796/File/xasowafedoxigakezoxat.pdf
- http://infinijewelry.com/userfiles/file/kuxakuvutuluwibejodaxitum.pdf
- https://pergamine.com/ckfinder/userfiles/files/86665441071.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=telecharger+les+albums+de+tintin+en+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_off0001112a.bind31938b54cd0bd610167de3a791fed1b446db25be149429d2af4e40208ead927 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112A | 22748 bytes |
font_01_sfnt_off00014aed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AED | 16792 bytes |
font_02_sfnt_off00016304.bin73a0ed0ded799b36bc44267596e0d1f27a7a93b4174df394624deea6f1061098 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16304 | 11152 bytes |
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