Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeb57c46c326d18…

MALICIOUS

PDF

80.6 KB Created: 2022-03-29 20:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: dea42bd7c05ee67e47850108bfc0aef7 SHA-1: 1fe1b6c7882aec84bcb6ca7b6b5dd4973a1ce85c SHA-256: cbeb57c46c326d18ff17cb27631516ff3cc5aa4ad43c771cdc838a7655de64f5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • 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.
  • 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://yoyep.co.za/YmrXLWy8?keyword=why%20the%20richer%20are%20getting%20richer PDF link annotation
    • https://jasadugo.weebly.com/uploads/1/3/5/3/135341750/buzaz.pdfIn PDF document text
    • https://vizumijolotetip.weebly.com/uploads/1/3/5/3/135394273/simevoxolel_fokovavezoz_pepexadesamugiw.pdfIn PDF document text
    • https://kusajigoma.weebly.com/uploads/1/3/6/0/136036420/nodedi-bunalolefisusu-jiwogelidujage-butef.pdfIn PDF document text
    • https://fozejabaf.weebly.com/uploads/1/3/5/3/135305581/f1dfd6e.pdfIn PDF document text
    • https://maninuwag.weebly.com/uploads/1/3/4/5/134577581/2f79c356d656.pdfIn PDF document text
    • http://etspak.com/survey/userfiles/files/ladujijeju.pdfIn PDF document text
    • https://repepojopojak.weebly.com/uploads/1/3/5/9/135970902/4c6588.pdfIn PDF document text
    • http://www.zdrava-bunka.eu/subdom/test/kcfinder/upload/files/bulokenukimizokota.pdfIn PDF document text
    • https://tewijudejasivi.weebly.com/uploads/1/3/2/6/132682467/f068e584bf01e.pdfIn PDF document text
    • https://sefelitajirowa.weebly.com/uploads/1/3/0/9/130969992/9075892.pdfIn PDF document text
    • https://bivitomelonex.weebly.com/uploads/1/3/4/4/134491730/3879130.pdfIn PDF document text
    • https://chambredhotes-savoie.com/ckfinder/userfiles/files/2122901153.pdfIn PDF document text
    • https://duvikexa.weebly.com/uploads/1/3/4/7/134709262/jexoxevajakir.pdfIn PDF document text
    • https://gawefazaniredo.weebly.com/uploads/1/3/4/7/134710102/lawogetobusidel.pdfIn PDF document text
    • https://dijafujuzu.weebly.com/uploads/1/3/4/3/134369935/mowubotixuba.pdfIn PDF document text
    • http://rbc-bezorgdiensten.nl/upload/wopomegude.pdfIn PDF document text
    • https://poduxerot.weebly.com/uploads/1/3/0/7/130776630/6775675.pdfIn PDF document text
    • https://gopelema.weebly.com/uploads/1/3/4/3/134314553/bokamawuwopoduto.pdfIn PDF document text
    • https://nidukonijeso.weebly.com/uploads/1/3/1/3/131381088/9064806.pdfIn PDF document text
    • https://nezamirekhaseafoods.com/userfiles/file/27428576966.pdfIn PDF document text
    • https://pudomawiwo.weebly.com/uploads/1/3/5/9/135958378/3300974.pdfIn PDF document text
    • http://allier.proximeo.com/ckfinder/userfiles/files/50562643140.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_off0000dcb0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dcb0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000f354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF354 10280 bytes
SHA-256: d96812fcf943a11cf212a7db2e9f47ae17ae0949a3549787992d07153c072828
font_02_sfnt_off00010a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A75 16412 bytes
SHA-256: 8857c87f2e7ec5d47466fd2d7e0238b75e47050e6eca4b35dbea70a70f252a68