Malicious PDF — malware analysis report

Static analysis result for SHA-256 47881d3301c38c6e…

MALICIOUS

PDF

79.5 KB Created: 2021-08-27 09:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 38dabb430a633d174d5ed9ec3857c2d6 SHA-1: 1e2d7af0db00d24cff16b1cf2cec9fd60bc49062 SHA-256: 47881d3301c38c6e4500c87edf8c97bcaf486b84cd6b142d23c6462ada1a7933
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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 http://ncabhsa.com/clients/875427/File/nuvifosowagokodiweb.pdf In PDF document text
    • https://iskoruma.com/upload/ckfinder/files/71820209172.pdfIn PDF document text
    • http://dichvutheapec.com/upload/FCK/file/866067804.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160e778000d76c---15768691428.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b658e6d9207---63383694551.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e5527e8ef---29553929420.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/f6ef0a158caca5a386ce1e3f030a5b75/jumopogidigug.pdfIn PDF document text
    • http://internationalbeautypageants.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/rusosid.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd59fc4c80---raxifefopafofinuruxawon.pdfIn PDF document text
    • https://2ruoteexpo.it/ckfinder/userfiles/files/52953784320.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/82806854595.pdfIn PDF document text
    • http://maychebiengoduykhuong.com/media/ftp/file/62540347019.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160700146112c2---16840320740.pdfIn PDF document text
    • https://ceral.pl/ceral/pliki/file/viwezopelakasaluwajuz.pdfIn PDF document text
    • https://istanajp2.com/contents//files/31637470129.pdfIn PDF document text
    • http://jimsclub.net/new/board/img_tinfo/file/20210723133711.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6cd12e3960---9408108302.pdfIn PDF document text
    • http://imssp.by/data/images/fxeditor/file/62685268053.pdfIn PDF document text
    • http://fincasotilloviejo.es/files/sotillo/_repo/file/koxagatoxad.pdfIn PDF document text
    • http://www.santamyoga.be/images/file/94700753041.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa66eea1592---vasasukuzadudiwa.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcc8e89d31---23792954369.pdfIn PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/d0ed56fbe7d0edbe931bca48689882e5/fideb.pdfIn PDF document text
    • https://thefencedocumentary.ca/adminfiles/file/66316121785.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=number+the+stars+chapter+14+summaryPDF 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.

FilenameKindSourceSize
font_00_sfnt_off0000d4c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C0 16236 bytes
SHA-256: 961f81701bd000672528e7ce83bcb476d394ca7c59726a64be7506e4c5ff07b4
font_01_sfnt_off0000febe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000116d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116D5 10736 bytes
SHA-256: 67d23ac7c2ff0323879640eb458a4f1a0b081f27cd785d70f48f8a133afb232d