Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3d1d71d65f8922…

MALICIOUS

PDF

162.9 KB Created: 2022-05-27 09:37:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 08a42a8c0b74f582398f9cc345c07712 SHA-1: 4aa4b2c5aad8ee1eb53294f960c8ad58d28cedc1 SHA-256: 5d3d1d71d65f89228af354be6d37e9ee757a2bfb413e115e80f0afb01ce30c97
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9929

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://wirut.co.za/YmrXLWy8?keyword=movie%20crossword%20puzzles%20pdf PDF link annotation
    • http://ewhamd.net/upFiles/ckeditor/files/pesivejoten.pdfIn PDF document text
    • https://fejizokifod.weebly.com/uploads/1/3/5/3/135341395/6863560.pdfIn PDF document text
    • https://www.caposalasicilia.com/admin/ckeditor/kcfinder/upload/files/kesenovesumurovel.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16249186ccdd2f---kikajobor.pdfIn PDF document text
    • http://ttlh.vn/storage/ckfinder/files/57812611230.pdfIn PDF document text
    • http://www.matrixaviationfueling.com/assets/ckeditor/kcfinder/upload/files/lowebumak.pdfIn PDF document text
    • https://actionalbertafoundationrepair.com/nbloom/fckuploads/file/jowajabolalajodexi.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c769ed18bbbcd55848051e82500a86b5/vonolotutarikaw.pdfIn PDF document text
    • https://perfecthospitals.org/FCKeditor/file/24065010649.pdfIn PDF document text
    • http://shhyi.com/hysy/WebFiles/file///2022040722281085.pdfIn PDF document text
    • https://xutesinazered.weebly.com/uploads/1/3/4/5/134529246/5845e08.pdfIn PDF document text
    • http://formacio.fic.cat/uploads/file/bigedorapode.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/b6l5fhqvgugc02a4bum6948sf3/jevifojox.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/jawufuvagozen.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/24363991133.pdfIn PDF document text
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/ee25a0c522ac479706597848955720b9/galagu.pdfIn PDF document text
    • https://tovamegudisolos.weebly.com/uploads/1/3/1/4/131411857/2415852.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/lisaruze.pdfIn PDF document text
    • https://kifakofaw.weebly.com/uploads/1/3/4/0/134016777/vomafuvipano.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/38388489053.pdfIn PDF document text
    • https://institut-arabe.org/ckfinder/userfiles/files/gotojizonadewopovik.pdfIn PDF document text
    • https://telovolivizike.weebly.com/uploads/1/4/1/2/141253876/6675194.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/cacaecb0f605f50eee979e67738f4ad1/zotirema.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 extracted file (font_00_sfnt_off0002010e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002010e.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002010e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2010E 19684 bytes
SHA-256: b336a6cc5766357155b3013f605f9c0045052fa7ac7e322444bb281cc0a82a6b
font_01_sfnt_off000231c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x231C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000249d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x249D5 7360 bytes
SHA-256: ea5431ba15812aebb50824b4fbb8f09b4010e16cd74b3469b8bfe34707160b1f
font_03_sfnt_off00026361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26361 10552 bytes
SHA-256: 53c6ded9f999c2cdec5aed438ec7a4c9d3910d9e1cfb7ca4f5196cc5d04b94e1