MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to other PDFs hosted on compromised WordPress sites, indicating a link farm designed to distribute further malicious content. ClamAV and ML classifiers strongly indicate maliciousness, and the structure suggests a phishing or malware distribution campaign. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ad2927359---76557812048.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/cfdcc000f52afc049d95f86754863c71/29880463588.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/4e8946026300044de2d3b0c98bae4870/92934108035.pdf
- http://chiengthai.com/file_media/file_image/file/puwupelafatadisajikiwakun.pdf
- http://beijinghuojia.cn/userfiles/file/97223878599.pdf
- http://gayaarchi.com/userfiles/file/20210727225859.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a213a8466---66447639942.pdf
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c004bbae759---somul.pdf
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/qsj4osujlfjipr7e27puum95n5/29702224234.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc60f9c3ee---fages.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/bc1lu3s890r3tlqsrd00h222f1/69724393916.pdf
- http://abacusnancy.com/userfiles/file/pukomuwulizisop.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/7ed4la2amf6s8a0jfo1a8v4m1m/62281429448.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/95dcc72f4f99c2345b411eece00444f6/17860558433.pdf
- http://originalcheck.it/public/img_admin/file///82618150039.pdf
- https://shiokuda2.com/contents//files/ponoputaverib.pdf
- https://samowar.ch/upload/file/mozasajetebuwofatefiv.pdf
- http://www.pzkexie.com/up_files/file/42176376939.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/6qj53rl1d92r235usglebp2cj3/71027014432.pdf
- http://amexeuro.com/an3_Uploads/file/gabanelafemerab.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c265e512d4---jimawovagubefuna.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/6c523cfa1dc936c259f11bbb7063e6c3/87078142958.pdf
- http://siciny.pl/userfiles/file/28448219350.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/649c29f300fc50cbceb674df4f2acfff/3478581879.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078df888f87b---zaziliz.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=exercices+excel+2010+avec+corrig%C3%A9s
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001311b.bina6b85b5ae72b8e24c542739f8cff03bc7367140100f07eccfafc27c96b128049 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1311B | 10804 bytes |
font_01_sfnt_off000149f8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149F8 | 16792 bytes |
font_02_sfnt_off00016209.bine2ad764752cd4be5999c18614362e0cea8e9c563e7196d76fd0086f860ccaf5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16209 | 16192 bytes |
font_03_sfnt_off00017792.binc711b3a809aec895bcc14ef8ed43232e9a7ba2bddace68ba1adbee2799bf5039 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17792 | 21896 bytes |
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