Malicious PDF — malware analysis report

Static analysis result for SHA-256 7641464d888ffe8e…

MALICIOUS

PDF

82.3 KB Created: 2021-10-06 04:36:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 83b2597fb882e0ab5d372740dcd97d73 SHA-1: 6610cafa62f7cd8bff7144d18939e72cbf324d89 SHA-256: 7641464d888ffe8e6213d0c2109a039f2c726d5be1898a6fc558a6ff2fe3fa1a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://geojeoceanhotel.com/userfiles/file/20210930161739.pdf In PDF document text
    • https://ipssecurityconsultants.com/ckfinder/userfiles/files/diwema.pdfIn PDF document text
    • http://ilovehikari.com/uploads/files/60105882556.pdfIn PDF document text
    • http://bjhtdszdh.com/v15/Upload/file/20219201948265076.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/3d82hecs11jfi7s0tl1aj2l1c7/7039340466.pdfIn PDF document text
    • https://0286869143.com/editor_images/files/vurezejanow.pdfIn PDF document text
    • http://only-svet.ru/upload/files/wasoxararemeleg.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/v99lvlmm657o1qe3an0gi5e82h/45476649177.pdfIn PDF document text
    • http://aunay-sous-auneau.fr/ckfinder/userfiles/files/vopupakudo.pdfIn PDF document text
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/08f48b79ea5dbe47feba58aa4ddbdf0e/wujomepubawadavemedur.pdfIn PDF document text
    • https://primer-spb.ru/files/files/votiwumog.pdfIn PDF document text
    • http://scamps.biz/userfiles/file/44183292362.pdfIn PDF document text
    • https://pasarangroup2.com/contents/files/55003875524.pdfIn PDF document text
    • http://secretsocietygroup.com/temp/vinney/HTML/userfiles/file/daxopubomej.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/7735375792.pdfIn PDF document text
    • https://ctners.com/ckfinder/userfiles/files/37711469673.pdfIn PDF document text
    • http://www.centrosanmarco.eu/img/news/files/86922269650.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2021100305005673499.pdfIn PDF document text
    • http://indcms.testingmachines.com/images/file/setanosuximotuxe.pdfIn PDF document text
    • http://alkanboya.com/files/file///25058533186.pdfIn PDF document text
    • http://kondicionery-fryazino.ru/upload_picture/file/93896474030.pdfIn PDF document text
    • http://rcsiprojectracker.com/userfiles/files/12207723967.pdfIn PDF document text
    • http://learnazia.com/fck/imagesfile/buzoxopopikilirewofela.pdfIn PDF document text
    • https://madhubanindiancuisine.com/nbloom/fckuploads/file/63173796709.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/godil.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=creswell+choosing+a+mixed+methods+designPDF 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_off0000db91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB91 18336 bytes
SHA-256: 5ed4591edfeb05b1ffd4542484b4725a6b716ae9fa92266afff2f446a670cc85
font_01_sfnt_off00010a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A18 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001222f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1222F 11036 bytes
SHA-256: 795b4e11e83b340a4541a181d6055ca0c4eec57ac9849fc538c214448e836720