MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations and appear to be part of a link farm designed to obscure the true destination. The primary purpose seems to be directing users to malicious sites under the guise of a file conversion service, which is a common phishing tactic.
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://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160730bebed42f---94076625856.pdf In PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6e3149999---bamarominafetuseliden.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/kj60kufclvja44si0nop2dvcpo/nolakovebew.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16079cf7956e47---sobomizuwososaxinel.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607721e2ad978---fuxomed.pdfIn PDF document text
- http://fonnepal.org/userfiles/file/tolutekukizitixezigifuz.pdfIn PDF document text
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e39052690---28350022149.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/008ea8ohigilho799kv4vetvs2/tujajumomo.pdfIn PDF document text
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a317fd4271b---dujusugumonafibolenoga.pdfIn PDF document text
- https://techson-cctv.com/upload/file/pojesu.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/2f81debb045259509133be2781b9156d/vukujino.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c25176deb54---70096219196.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16075c57e93640---58895246614.pdfIn PDF document text
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/539670de98fc3d320d607e79a36526fc/lizevut.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd9d7cc614---zofenifakaliginitef.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/41775136244.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c309cae6779---peteputovokivi.pdfIn PDF document text
- https://red-adlay.com/upload/files/witufixidixomipu.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/8aeaad2ec70a60e493793593f23f6dbb/pinidukejarowubokasufogo.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/245d2d1cb8be8b51120831e983db9fb2/fatakiziroxefusamud.pdfIn PDF document text
- http://daearesort.com/FileData/ckfinder/files/20210604_BD61716ED527D80B.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/0399d4a09360a54265eaca16b7052f1c/tujimamowumofixoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=convert+pdf+to+jpg+up+to+100+kbPDF 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_off0000df7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF7F | 16428 bytes |
SHA-256: b9fc990b76756a730143b1da1b9b8be80e8021d5251b7aa22d27c204b93e944f |
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font_01_sfnt_off00010a50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A50 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012267.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12267 | 10936 bytes |
SHA-256: e6a1748bab69518505146a7ca39bc36790d2fb2dc122f33f3ad59aee87eb0e9e |
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