Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a2c702c2945367…

MALICIOUS

PDF

72.5 KB Created: 2022-04-06 17:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: b5da62727a1479640fb29aed197152c5 SHA-1: c1ce7eed55d5ac43312f784fab4cc2fa1b36a41d SHA-256: 18a2c702c294536795ce269c0dc6fbd770811c2a9d6de02fcab1bbf5e830b3ca
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://yubit.co.za/YmrXLWy8?keyword=how%20to%20make%20origami%20paper%20pencil%20box PDF link annotation
    • https://nabofirolem.weebly.com/uploads/1/3/4/6/134632364/wixonatot.pdfIn PDF document text
    • http://le-nora.com/userfiles/file/faxelakatinagusowoxajo.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16236341c50301---83724747255.pdfIn PDF document text
    • http://temple.mo/userfiles/file/rixosiwoxifulejezasewifun.pdfIn PDF document text
    • http://www.ags-sib.ru/ckfinder/userfiles/files/kinujasamixizuvekijadu.pdfIn PDF document text
    • http://patanjali.zohukum.com/ckfinder/userfiles/files/19920772237.pdfIn PDF document text
    • https://fotewusobowo.weebly.com/uploads/1/3/5/3/135339642/vabudewi_xozulasiw.pdfIn PDF document text
    • https://dulewexafup.weebly.com/uploads/1/3/4/7/134702005/riwuxa.pdfIn PDF document text
    • http://nifaelectronics.com/userfiles/file/10980392220.pdfIn PDF document text
    • http://metallpress.info/files/rerosipodaloviwuz.pdfIn PDF document text
    • http://baugeraeteverleih.de/benutzerdateien/fipozenumovaxoje.pdfIn PDF document text
    • https://zoxitujiwa.weebly.com/uploads/1/3/2/3/132302939/xudan.pdfIn PDF document text
    • https://gatevipamor.weebly.com/uploads/1/3/4/8/134878843/gorox.pdfIn PDF document text
    • https://palet-school.com/files/files/pijim.pdfIn PDF document text
    • https://buduruzuled.weebly.com/uploads/1/3/2/6/132682090/7847420.pdfIn PDF document text
    • http://atlasbasincli.com/panel/kcfinder/upload/files/gasemusixedakil.pdfIn PDF document text
    • https://wogugijogugeb.weebly.com/uploads/1/4/1/3/141385564/6156465.pdfIn PDF document text
    • https://xodefoxewez.weebly.com/uploads/1/3/5/3/135325776/4b597d1f.pdfIn PDF document text
    • https://rolemefusibo.weebly.com/uploads/1/3/0/8/130814279/0c6b6e.pdfIn PDF document text
    • https://nafakurara.weebly.com/uploads/1/4/1/3/141351912/devixorebepif.pdfIn PDF document text
    • https://sedidumorasu.weebly.com/uploads/1/3/4/5/134507492/abd4f550a295609.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_off0000b8fa.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b8fa.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8FA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD111 10960 bytes
SHA-256: d6a08ac473c0993a6c083e1d11923419e10fa3113acfdc1cd073935468919903
font_02_sfnt_off0000ea3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3A 16460 bytes
SHA-256: b9a432eb326384efb10afee4b47f89d21ec6aeed6be18bf681be2c5bf2e5e2c9