Malicious PDF — malware analysis report

Static analysis result for SHA-256 754ea95a99a46407…

MALICIOUS

PDF

102.7 KB Created: 2021-06-28 07:10:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 3c46ef90ee212f35c9b3a04c9c93019f SHA-1: b387928ff5f0918208b0d802f9f2ad55fe8dbb39 SHA-256: 754ea95a99a4640748e6c62b576a2868c296b1745eff147e76e9db8679d747f8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a common PDF-based lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9934

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://archism.ru/uplcv?utm_term=god+created+man+from PDF link annotation
    • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/a74a59402248c6007747235d6fb50c4f/xonesodapanoxej.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160847bb9a9995---gisumiga.pdfIn PDF document text
    • https://uniontend.com/userfiles/files/lupopumuvanagefi.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/bf943cd7ce8e997cc6ac6c87e7c2298b/42281642524.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/dl5o6d0ntvtv81cjlado90dq61/nujaboronujodaluremoxubug.pdfIn PDF document text
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/7f9efd6f9ea4fc451be7c1b0e5143ffc/lakikirola.pdfIn PDF document text
    • https://mystruggle.uk/indigo/ckfinder/userfiles/files/zevuwivedalaxarulomotose.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16075f23c8859d---37902866604.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/fortand0oi8ckunefmcpr2n6da/naworivuk.pdfIn PDF document text
    • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/abf59ef8488ca8f61ef2fdf4a0bfcdd7/bigomavugazax.pdfIn PDF document text
    • http://nicenpos.com/userData/board/file/vikapus.pdfIn PDF document text
    • http://quiltingacademy.com/fckeditor/userfiles/file/19931451807.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608bad7deaf7b---piwepenomibop.pdfIn PDF document text
    • https://linker.tw/files/xaraselixoluv.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd903d1a49---mumikigux.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/ec24d3cdd2c571f0e62599335bc9e9c7/92305000197.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a0becd07aa9---66987533219.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5917131539---93184024357.pdfIn PDF document text
    • https://anukulagrotech.com/userfiles/file/92204767950.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16081698e11b42---38560552729.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609901e3c9d90---pefepifugepewabega.pdfIn PDF document text
    • https://sakkestadbil.no/userfiles/file/64155885504.pdfIn PDF document text
    • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16070183d0a2e1---vomoninigifavulajuzi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000131b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131B4 10368 bytes
SHA-256: cb84a22f4be8d68861ce840a02572595aa34ebd2f62fd598ce95febab5adbc33
font_01_sfnt_off00014920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14920 17224 bytes
SHA-256: 556c373b89a40a149eaae8678ca76f10bcb39d53a46bc04458e9a95f083adc99
font_02_sfnt_off000175f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x175F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.