Malicious PDF — malware analysis report

Static analysis result for SHA-256 18af32be2706df29…

MALICIOUS

PDF

76.6 KB Created: 2022-03-31 16:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 027026f5d096cb2015b5bce169c06885 SHA-1: d207d0660ecfc94e65f7855e96273eba0e505d51 SHA-256: 18af32be2706df292fa71ddc2f8d9ed8b60e7b2d71e6ea5d778698ca87e6aa93
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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=dell%20optiplex%203010%20specs%20i5 PDF link annotation
    • http://ns.duolos.com/customer/FaQ/FaQData/files/14960517337.pdfIn PDF document text
    • https://bipakevulof.weebly.com/uploads/1/3/4/6/134602937/7f2afdfc8a.pdfIn PDF document text
    • https://nenimokevip.weebly.com/uploads/1/3/4/3/134336374/rimazitazopezum.pdfIn PDF document text
    • https://retixuzekuzexaw.weebly.com/uploads/1/3/4/3/134375726/6763324.pdfIn PDF document text
    • http://sukhonthip.com/file_media/file_image/file/8199668714.pdfIn PDF document text
    • https://szelvedojavitasmiskolc.hu/files/files/rezojeba.pdfIn PDF document text
    • https://tckontrola.zagi.hr/files/73563822130.pdfIn PDF document text
    • http://alltechsro.cz/files/marito.pdfIn PDF document text
    • https://ezastupitelstvo.sk/editor_uploads/system/files/bemipo.pdfIn PDF document text
    • https://lovasusux.weebly.com/uploads/1/4/1/2/141278816/dipibevawubupu.pdfIn PDF document text
    • http://lachambredechos.com/userfiles/file/mikikexesotumemabofak.pdfIn PDF document text
    • http://www.globalconference.info/kcfinder/upload/files/dudazulib.pdfIn PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/xilexawotozepatesamam.pdfIn PDF document text
    • https://xojovirasada.weebly.com/uploads/1/3/1/6/131637125/xiseji.pdfIn PDF document text
    • https://sskundal.com/userfiles/file/dapatatoduvi.pdfIn PDF document text
    • https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/a1adf48442c175.pdfIn PDF document text
    • http://dgjinhak.kr/DATA/upload/files/202202070757467303.pdfIn PDF document text
    • https://www.webursitet.ru/kcfinder/upload/files/rasuwitubijenitij.pdfIn PDF document text
    • https://www.ajmetaldesign.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/wudivadupi.pdfIn PDF document text
    • https://vajigapevinukaz.weebly.com/uploads/1/3/4/5/134578345/libizigejibakowopesu.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_off0000c573.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c573.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC573 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8A 10584 bytes
SHA-256: dae8c74f4ab3960fcbfb95dc25a9c20512fe33a43a1e2a4be444c2ce7d0cb55c
font_02_sfnt_off0000f5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E6 17824 bytes
SHA-256: 626f876487698dca54d79e45efcf47fbac99ee08bdb2475deff070df5ae432ce