Malicious PDF — malware analysis report

Static analysis result for SHA-256 4256e0d08098b4f0…

MALICIOUS

PDF

82.1 KB Created: 2022-05-03 23:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 409334681222a40dd01ecb026f838db8 SHA-1: a87c9c5cd8d125e62e779f035e32304ae3b45bfd SHA-256: 4256e0d08098b4f0ab40b5bf14f8f6c69d2b3a6a53602a3a3f74a47a97e65a35
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://fecuq.co.za/YmrXLWy8?keyword=bwssb%20name%20transfer%20application%20form%20download%20philippines%20pdf%20download PDF link annotation
    • https://lavozeto.weebly.com/uploads/1/3/0/7/130775819/6798299.pdfIn PDF document text
    • http://xuanfe.com/uploads/FCKeditor/file/kukobawif.pdfIn PDF document text
    • https://batikigika.weebly.com/uploads/1/4/1/2/141260717/liwiluxelodazurixak.pdfIn PDF document text
    • http://www.heatandgas.com/EditorImages/file/28553828450.pdfIn PDF document text
    • https://xebezadewa.weebly.com/uploads/1/3/4/8/134852362/vanugisav.pdfIn PDF document text
    • https://dataremidesop.weebly.com/uploads/1/3/4/6/134697992/9776080.pdfIn PDF document text
    • https://tivubikujadilav.weebly.com/uploads/1/3/4/5/134527100/depigibaresepur.pdfIn PDF document text
    • https://4dapi.glg228.info/app/webroot/uploads/files/14625728011.pdfIn PDF document text
    • https://xupufofi.weebly.com/uploads/1/3/4/7/134766196/nogubedorubiwaziluz.pdfIn PDF document text
    • https://fanolukexepafo.weebly.com/uploads/1/3/0/9/130969893/1b705bda.pdfIn PDF document text
    • https://lean-ds.com/upload/editor/file/93722577041.pdfIn PDF document text
    • https://rupunapu.weebly.com/uploads/1/3/4/3/134354814/72bdf8a5.pdfIn PDF document text
    • https://gazikurow.weebly.com/uploads/1/3/1/4/131452893/dafamesudeb_vakosud_tiwarag.pdfIn PDF document text
    • https://lockerova.eu/admin/upload/documents/zoraj.pdfIn PDF document text
    • https://viselejipu.weebly.com/uploads/1/3/4/6/134698272/e956a.pdfIn PDF document text
    • https://literuvet.weebly.com/uploads/1/4/1/2/141246301/4964654.pdfIn PDF document text
    • https://vodofufilekulu.weebly.com/uploads/1/4/1/2/141278769/xobukalexikivo.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/kipuwelu.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/zajosa.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 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_off0000d906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD906 17568 bytes
SHA-256: 43fa6b6b0f661b2f94929764cf61ba232d8d60d079583f2d887add6317673ee7
font_01_sfnt_off0001076c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1076C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F83 11164 bytes
SHA-256: 9176d217c72a4a0fd01c8fed27e56aa05bfd6bcbc5592330ee3c4511904be04d