Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6a088dd9becc8d…

MALICIOUS

PDF

85.7 KB Created: 2021-09-16 11:28:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: fb9c26e3c77a0561046aa05cde84df6b SHA-1: c46a119f412b14c7f53fc3522f01561a956ed585 SHA-256: 2b6a088dd9becc8d8faf989ac6fde412ba9f4d04a3d1528701ec54b1cabbb037
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://888chji.com/userfiles/files/95045750542.pdf In PDF document text
    • https://mwasafat.com/uploads/files/koxagete.pdfIn PDF document text
    • https://groupunsur1.com/contents/files/kulesizefirebemekosuto.pdfIn PDF document text
    • https://www.frontieregypt.com/sites/all/libraries/ckfinder/userfiles/files/nujurovi.pdfIn PDF document text
    • http://strap.sk/uploads/files/rojuwuvatorale.pdfIn PDF document text
    • https://shevtsov-art.com/uploads/files/kikizadozejamepajeduso.pdfIn PDF document text
    • http://tootingtaxi.com/survey/userfiles/files/zabodovupogid.pdfIn PDF document text
    • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/aae40913f262eb95bd727922d47cdcdb/bazudojumewanopatogafeka.pdfIn PDF document text
    • http://teedinmaesai.com/user_img/file/92752644961.pdfIn PDF document text
    • http://elfast.ru/userfiles/file/rabejojuwoligabolevutas.pdfIn PDF document text
    • https://jaukiaplinka.lt/ckfinder/userfiles/files/84712284844.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac402b11d3---92768630729.pdfIn PDF document text
    • https://z87992961.com/upload/files/20210902130412.pdfIn PDF document text
    • http://poetische-malerei.de/web/editor/files/gatazamo.pdfIn PDF document text
    • https://quangtriasianwindow.com/uploads/image/files/gofowerurebesow.pdfIn PDF document text
    • http://lawyermo.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zutaf.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/9669021062799d04130a560c23423612/33497416138.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/7cccm5pvn7mi9200k4er8js5s1/10932280855.pdfIn PDF document text
    • http://hitmet.slektenkaas.com/bilder/file/66070065587.pdfIn PDF document text
    • http://china-baby-clothes.com/d/files/78950282544.pdfIn PDF document text
    • https://shreenatharcade.com/userfiles/file/bidixifusinexa.pdfIn PDF document text
    • http://theemasternetworker.com/ckfinder/userfiles/files/20930556295.pdfIn PDF document text
    • http://amicissiapiemonteisa.it/userfiles/files/44967057100.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=lego+harry+potter+nds+romPDF 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_off0000e917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE917 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001012e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1012E 10772 bytes
SHA-256: fd83cab4dd951c5e2a5a8623b1def53711f14e97bfaf0fc873344c3aa8271dd2
font_02_sfnt_off0001199d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199D 18084 bytes
SHA-256: 64980e8bd84da18dbb4c3eef63ddcf8129154a9e3b7a4f55681a07b0a7ce85b1