Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6bc8fab04a87c9…

MALICIOUS

PDF

313.1 KB Created: 2021-12-26 05:29:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 84672620ff1972f0b9002d1d590184b3 SHA-1: 3d9655c7f7043441bce488f22e3c14025b3109bb SHA-256: 2b6bc8fab04a87c96e0b5a1a11c4685d44b6be7afe8c303199cf31afc610aad8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7819

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://nrtz.fundacja-spektra.pl/upload/files/towegurajilexorejenajo.pdf In PDF document text
    • http://unionnutritech.com/upload/files/39411407929.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615fc055e999b---22956241988.pdfIn PDF document text
    • http://spzpoz-zdunskawola.pl/upload/file/mukokakudakoraniju.pdfIn PDF document text
    • https://birutelorasin.com/contents/files/mopaxojamimedasapopafoxeg.pdfIn PDF document text
    • http://pataibicaj.hu/userfiles/file/58114558871.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/38236971b19154945012f5865c022744/tazokikus.pdfIn PDF document text
    • https://profipreklady.cz/www/ckfinder/userfiles/files/80418690468.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/cf1a3372906c3bc4a7999f842d5fab76/zaxumupizuzuzulizik.pdfIn PDF document text
    • http://registermycompany.in/admin/userfiles/file/belilaxiruko.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1618fafaf171ba---retikilogotazedeziv.pdfIn PDF document text
    • http://fc-junajted.com/upload/datoteke/tibuzojiniligizisabux.pdfIn PDF document text
    • https://biocoils.com/img/file/relovadojeminibamidulefa.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1618935275613cec91d9e1a.pdfIn PDF document text
    • http://bocghebinhduong.com/media/ftp/file/42514055461.pdfIn PDF document text
    • http://jsdarvin.com/files/82018936721.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/3ed68f59e02879ddd9b3df12d4c3aa06/gemekifepebogovizased.pdfIn PDF document text
    • http://greenhouse.gen.tr/panel/kcfinder/upload/files/puvakerilepipigumifi.pdfIn PDF document text
    • http://fashionflutters.com/ckfinder/userfiles/files/kivaxoxusuvefufe.pdfIn PDF document text
    • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16189f36b3d5ed---zemapimeguboxesabem.pdfIn PDF document text
    • http://alltechsro.cz/files/dapugigovokotosugexiror.pdfIn PDF document text
    • http://ghettaetamionarchitetti.it/userfiles/files/59938902070.pdfIn PDF document text
    • http://kientrucphatloc.com/upload/files/peziwuvuzesezora.pdfIn PDF document text
    • http://deshdunya.com/blogimage/file/71000742818.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/4dZi1sgP-vI/uplcv?utm_term=tropical+storm+hurricanes+formationPDF 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_off00047443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47443 18464 bytes
SHA-256: 70c34aa769083846ce4039f1a2432b99dff9a62e9f13bd14f1c179151e58b08c
font_01_sfnt_off0004a489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A489 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004bb2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB2D 10808 bytes
SHA-256: d18703838acc2a3322ddd9f562eee09a5ecfa182bbba3d22eb59947f1bfa9a6b