MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories and disposable hosting. These links likely serve to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://catamma.ru/uplcv?utm_term=how+do+you+calculate+atomic+mass
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/ffa1ebdcd572d53e97a86da2e69c4541/jobosusapaxusuxomom.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/v9k1oj6hmb1vf87m3953far2d4/12005594985.pdf
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/7vekk2n14v1ibsda5bqro1dbg1/fifepukofuwegabifupe.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160dc45b11cab9---53645549999.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/2vslu7n2lvds4n000184nv7ibd/verizipogasixetewapejebep.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077091b4f795---34739631365.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/vhgo2oot2lbsvop7153lm94nqv/75041343348.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/bcad54d3c5667cc6886f390ef2f3bb6a/24885189596.pdf
- http://moriefrusca.com/userfiles/files/58800564946.pdf
- https://xo-sound.ru/userfiles/file/polazajopasox.pdf
- https://premium-house.uz/images/file/74653035781.pdf
- https://electrabicycles.pl/app/webroot/uploads/file/16204960583006.pdf
- https://art-lamps-rali.eu/files/file/fibejisafabejaxifa.pdf
- https://fultoys.com/userfiles/97875536517.pdf
- http://absolutelyneon.com/userfiles/file/fotaveba.pdf
- https://unitjaya.com/contents//files/zimebowusib.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e874f41961---fujureg.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160a96038a300c---vetevupabivivobobide.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a53317e3f19---josulesusinuxenofifiz.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/9cb2155e98ab6ed27e6547ec2b23b8f3/50010056996.pdf
- http://xenangheli.vn/public/files/66174989209.pdf
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/oh5osma45af6bkse5uc4f5ml9q/26611584676.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_off0000e47c.bin15d15d9178205f7bbc6093b5ef10f32b13e45222c281c962ec61ba3b71896b00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE47C | 16688 bytes |
font_01_sfnt_off00010ff9.binc8b01e984b35c7f73fad7c6c38ac3f024415042659790a5a54429c5697d0e4ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF9 | 10620 bytes |
font_02_sfnt_off00012854.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12854 | 16792 bytes |
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