Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcf6287097cb685…

MALICIOUS

PDF

75.3 KB Created: 2022-04-11 05:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: c86951e878a82d710eb04533664b0938 SHA-1: c31e1ab23edf301f19043ad1fad8df5d358bc07c SHA-256: 1dcf6287097cb68568a68ac5b045bea0e2b7df1b40dead2d4b84d82c61f2c95a
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=what%20sign%20is%20january%2020 PDF link annotation
    • https://xepesosagar.weebly.com/uploads/1/3/4/7/134737956/1323425.pdfIn PDF document text
    • https://divamokavagi.weebly.com/uploads/1/3/4/8/134871471/wanoter.pdfIn PDF document text
    • https://jawebufor.weebly.com/uploads/1/3/4/6/134647112/7712333.pdfIn PDF document text
    • https://xudezilo.weebly.com/uploads/1/3/0/7/130739240/993521257a736ea.pdfIn PDF document text
    • https://jasasenud.weebly.com/uploads/1/3/4/1/134131975/zexifojovixibebab.pdfIn PDF document text
    • https://fenujewasokup.weebly.com/uploads/1/4/1/3/141340184/kebigufa-mubigoguxanix-wudak-vewaj.pdfIn PDF document text
    • https://tifuvanolini.weebly.com/uploads/1/3/4/7/134703883/5f0d99b8295.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/wavolifegagon.pdfIn PDF document text
    • https://paxesejok.weebly.com/uploads/1/3/4/3/134348383/b9af721cc93f62.pdfIn PDF document text
    • https://jutonigozazizeg.weebly.com/uploads/1/3/4/7/134700746/tadegu_susubozig_febukofaneduvag_jozebabaz.pdfIn PDF document text
    • http://brillodesol.com.ar/app/webroot/js/kcfinder/upload/files/56124192192.pdfIn PDF document text
    • http://friend5190.xyz/js/ckfinder/userfiles/files/sibaxixufudidimutozarite.pdfIn PDF document text
    • https://tijabitosivu.weebly.com/uploads/1/3/4/3/134396728/xotaj-xixirokisuguf.pdfIn PDF document text
    • https://tupinikuwexopej.weebly.com/uploads/1/3/1/0/131070806/zonokige_mirafamizada_gamimimaxikawe_xatevej.pdfIn PDF document text
    • https://fier-forjat-valimet.ro/ckfinder/userfiles/files/zotinedidizasuxageparij.pdfIn PDF document text
    • https://mefupawex.weebly.com/uploads/1/3/4/3/134317460/vavamuwumi.pdfIn PDF document text
    • https://jasazifo.weebly.com/uploads/1/3/1/4/131437377/4bc05b31.pdfIn PDF document text
    • https://sapobukemofox.weebly.com/uploads/1/3/5/9/135974899/deretivepus.pdfIn PDF document text
    • https://mokegeninu.weebly.com/uploads/1/3/4/0/134017711/neramu.pdfIn PDF document text
    • https://visosoduvevup.weebly.com/uploads/1/3/4/2/134234588/sejamakinezuwiridumu.pdfIn PDF document text
    • https://subopojulolilat.weebly.com/uploads/1/3/4/3/134319837/ea569.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_off0000c1bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BC 10668 bytes
SHA-256: cbd8e8989339611041dc74e30343b2e0e4df4c953163769b24df162dd3d5a6e3
font_01_sfnt_off0000da38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA38 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24A 17348 bytes
SHA-256: 0f7500ee124cd70888ebcf55b8a4c4d4d820480481bcbb1d4a03ad309d850774