MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many URLs pointing to potentially compromised or disposable hosting. The presence of multiple external URIs, including one hosted on a compromised CMS upload, suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://cuspsurgeons.com/userfiles/file/45764019621.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/f4a7d85e3692aad5113d98342e951696/79658291141.pdf
- http://tscyw.net/userfiles/file/20210620231631_vfpn5h.pdf
- http://nissanotogovap.com/uploads/images/files/23269704253.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d54e960b1a---87616847369.pdf
- http://bbbswalkforkids.com/clients/c/cf/cf8d0549bdc9bbdffca8bc0db9808b96/File/dezili.pdf
- http://apcmagon.com/userfiles/26169098510.pdf
- https://ludifrance.fr/userfiles/file/43829651157.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c84d3c093d8---rarelaxofufunubusokuxug.pdf
- http://khodahoanglang.com/admin/webroot/upload/image/files/32448855065.pdf
- http://soleilboo.com/images/uploads/files/6582403651.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c80b0f664.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609b38cf432a2---gegafotifov.pdf
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/b9dac1140c0cc64216120af43315a825/sudene.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/10684087014d3845ad412d8c6820080c/68694110075.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/k2j07s5atmico1o32epimth4rr/xelotipinadenumenimili.pdf
- http://abc-tel.ru/data/File/68046988285.pdf
- http://chinajnbt.com/images/upload/File/nokusatusubipufilaxur.pdf
- http://ackerviewguesthouse.com/userfiles/file/39385170915.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/6d552911ccb3f475ed5b88453193bda5/62182802017.pdf
- https://famecosmica.it/file/17400407408.pdf
- http://surrattsville69.com/clients/8/81/8122276c22396d7fa0996010cc369f50/File/19163666061.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=three+common+risk+factors+for+young+drivers
- 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_off0000d476.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD476 | 16792 bytes |
font_01_sfnt_off0000ec8d.binee898d98ef16ffd15578474fa1cdb0859118b853dfdd7c26ca9d39446fcc0de0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8D | 11212 bytes |
font_02_sfnt_off00010681.binf009a661faace0e20b26e5a8dd9cca0e8aa52c5a3788f828facad2945e1b7a4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10681 | 16876 bytes |
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