MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a 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 compromised WordPress upload directories. The primary purpose appears to be directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/b374ce1fcff88731b79a7c19c497c28b/60508021588.pdf In PDF document text
- https://cengilli.com/icerik_images/file/bubalatu.pdfIn PDF document text
- http://solee56.com/ckfinder/userfiles/files/pifavafagu.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a61ab56449---zolefafadive.pdfIn PDF document text
- https://nhachoxebus.com/upload/fck/file/51571502993.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/vovawomizib.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607f758d93f87---taxizabekawom.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c153aa5ce10---tiwamusuvejazuvatamave.pdfIn PDF document text
- https://yuss.it/file/dumoxizegubolu.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dphgr17p2hes9r3o86310tr6c5/65192204651.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da07eef409c---ravapera.pdfIn PDF document text
- https://nazragame.com/calisma2/files/uploads/27080997056.pdfIn PDF document text
- http://zulassung4you.de/bilder/file/bixoxazejivugedixatajalo.pdfIn PDF document text
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f660b0b228---99116772027.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/4c01863f1b6ff9886fbce3e99d6f9a33/99060355160.pdfIn PDF document text
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/cbd0c0bbc15120efe86abdb71e405351/34831264706.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/14ad3866f81dbb5e2c2d1886fd9bea65/domigovubimovew.pdfIn PDF document text
- http://yljx.cn/images/upload/File/xiputirovuxale.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086949c34f21---62116964847.pdfIn PDF document text
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/93kktl5k6j71a4nucqp7imr3gi/ponogosagiginoxiwaragedeb.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160cb6a25772e5---47489499030.pdfIn PDF document text
- http://feriaalainversa.com/uploaded/files/77742290279.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/8027473630.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/20440204292.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/3a9141f87414a03ea0c61cf4be8cf947/muwivosogoxinovukoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=total+body+warm+upPDF link annotation
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000107e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107E4 | 16984 bytes |
SHA-256: 326aa252fbd42ec5457b1d1416a30e005851b96cdeeb6b052d6c38216862bec6 |
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font_01_sfnt_off000133b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133B1 | 10460 bytes |
SHA-256: 73d5db756cbff15f748abb362a6b3838cccfa18514490384e4d54dd64af5355f |
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font_02_sfnt_off00014b52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B52 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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