Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcbefae1d186b9f…

MALICIOUS

PDF

78.9 KB Created: 2022-04-10 16:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 4ea23b41df1350623d1bed0d176536bf SHA-1: 4c25beaba57eac7aa3ea337469f8149d882f5366 SHA-256: 3bcbefae1d186b9f1e535cd8dc5587519d680d308cdeae977f95ced491c01975
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://sunuf.co.za/YmrXLWy8?keyword=motorola%20radio%20charger%20blinking%20red PDF link annotation
    • http://masan315.net/board/imagefile/file/13014092813.pdfIn PDF document text
    • http://mrybalko.ru/files/6046209053.pdfIn PDF document text
    • http://wsm.hk/images/uploadfiles/file/ratigexopasurez.pdfIn PDF document text
    • https://kirewigofe.weebly.com/uploads/1/3/4/3/134382955/2555924.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/162106487cb112---puzukipolezimedan.pdfIn PDF document text
    • https://zalozudipob.weebly.com/uploads/1/3/4/6/134673455/579032.pdfIn PDF document text
    • http://biondiairsystem.it/userfiles/files/gazixevikezuloku.pdfIn PDF document text
    • https://mipadabu.weebly.com/uploads/1/3/4/7/134751654/ruzurat.pdfIn PDF document text
    • https://inicio.camaragranada.org/administracion/kcfinder/upload/files/65893670817.pdfIn PDF document text
    • https://rirofogarerena.weebly.com/uploads/1/3/0/7/130775169/wekexufev.pdfIn PDF document text
    • https://fadegoke.weebly.com/uploads/1/3/5/9/135990174/317c4c9c.pdfIn PDF document text
    • https://nunamazo.weebly.com/uploads/1/3/4/3/134311680/gupemame.pdfIn PDF document text
    • https://wezoretibim.weebly.com/uploads/1/3/5/3/135317821/961386ed8b9a5.pdfIn PDF document text
    • https://wexofele.weebly.com/uploads/1/3/4/6/134632346/156fc4.pdfIn PDF document text
    • https://bubixumijek.weebly.com/uploads/1/3/5/3/135397401/xaxugujajazivej.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/dotonu.pdfIn PDF document text
    • https://xefewovureku.weebly.com/uploads/1/3/4/2/134265706/1822507.pdfIn PDF document text
    • http://aranykoronakft.hu/userfiles/file/33719725866.pdfIn PDF document text
    • http://libron.pl/fckupload/assets/file/tulejomokegezidex.pdfIn PDF document text
    • https://xulibaro.weebly.com/uploads/1/3/4/0/134041525/f9c65.pdfIn PDF document text
    • http://www.littletreepreschool.com/admin/kcfinder/upload/files/dekiwuwejedu.pdfIn PDF document text
    • https://jogivugu.weebly.com/uploads/1/3/2/7/132740949/8e8f46328f.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_off0000d1b1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d1b1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e9c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C8 10704 bytes
SHA-256: afb53e86fd471f349830e609a5bf261d903bbba9428cb783490738eceae545ce
font_02_sfnt_off0001020f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1020F 16712 bytes
SHA-256: d1d88fe6a4dc9e3ef64ec956a65cec03bd0d71ab3539e6269cc1307e81f3afac