Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6375b284e07a17…

MALICIOUS

PDF

104.9 KB Created: 2021-07-04 03:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f22eb3bc9de0df8dc3fb195238ce8d9b SHA-1: b40cb13ef84bbda5781fe74c08073224fe5cc78c SHA-256: db6375b284e07a17ae23a9feee97ff866414650e2515a6155e828564ea1d6f1a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. These links are likely intended to lure users to phishing pages or download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://pistant.ru/uplcv?utm_term=magnetic+field+equation+wire PDF link annotation
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609de2364d295---pevusipezelivono.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087edc91a4da---mexavesejosavonakaki.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/s2i9a5jttdg3qdudf5qd9112m3/7007484345.pdfIn PDF document text
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/gbn5nrnt4374ccnakuugtpbmn3/28974479871.pdfIn PDF document text
    • https://samoinstitute.mn/uploads/assets/file/pipebifolinesavirulezu.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160b98c1891f9c---gukuxabeturel.pdfIn PDF document text
    • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/e255dce46ddea940a78967b464ef74e3/tizogejizobalir.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/sibokufo.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/b9j76c0g246rm2fj9l4kn7lpbs/fojulazumulukomuwidupi.pdfIn PDF document text
    • http://antifftech.com/uploadfile/file///2021050702091142.pdfIn PDF document text
    • https://lesfeesdelhetre.fr/upload/files/tovipefukuranikitarijo.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16081f509a7087---repezus.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/0921019f83f952baaec9918a63fcaabd/90224911286.pdfIn PDF document text
    • http://paoladebenedetti.eu/userfiles/files/9055904308.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/1e24d97e9e00c3abc6ebfcacf67c8b12/jaloxudiwiwoxawejopawaki.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad647df0e58---wezejibovawijixetixaj.pdfIn PDF document text
    • http://kme-kme.cz/files/file/moregepi.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16079e30943ef4---19790668918.pdfIn PDF document text
    • https://syteq-pro.com/userfiles/file/pasukejedarunenowamula.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/24803507648.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/59897896931.pdfIn PDF document text
    • http://change4best.ru/upload/file/mofejepemapepojunorufeb.pdfIn PDF document text
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d81103a1aa0---11382969417.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/779ujailmdq9r6a67rgu5rfnp4/74126817986.pdfIn PDF document text
    • http://amoy-art.com/Upload/file/36665894037.pdfIn PDF document text
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C7A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13491 10808 bytes
SHA-256: 48ce87b184d7fc59b22af8553e6a702cdd320c5970bea4b915aa72915adebb84
font_02_sfnt_off00014d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D26 16168 bytes
SHA-256: 1cfb00680a8a18ef5d5af493cc5b57cfe410abeba37087ee2ecd799c98b61e68
font_03_sfnt_off000162be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162BE 18664 bytes
SHA-256: 729cfd36318838a3ccea03768d0641d13e425e4a5d05bd5f56330adc91bc8035

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