Malicious PDF — malware analysis report

Static analysis result for SHA-256 18aea72decf73c83…

MALICIOUS

PDF

71.4 KB Created: 2022-03-30 10:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: cc42a608c18b5100b2aafdf50727d48c SHA-1: 820857fe63191d69bcc8079440095e882ae201ad SHA-256: 18aea72decf73c83d9308bbabbb5fd17951182b759a15a2041d3e9900a959102
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lazav.co.za/YmrXLWy8?keyword=.net%20core%202%20tutorial%20for%20beginners PDF link annotation
    • https://cmsmda.neotebet.de/uploads/all/wejavovetobemetawa.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/wigiziwe.pdfIn PDF document text
    • https://sizutipaji.weebly.com/uploads/1/3/2/3/132303075/7712059.pdfIn PDF document text
    • http://bobmeetin.com/media/galleries/files/22231506023.pdfIn PDF document text
    • https://lefipejime.weebly.com/uploads/1/3/4/6/134668800/tepetovunete_kedemipokeket_talefitebi.pdfIn PDF document text
    • https://volixezutepa.weebly.com/uploads/1/3/4/1/134131916/kewabivimiki_gozisav_xopiboze.pdfIn PDF document text
    • http://gsest.com.sa/ckeditor/kcfinder/upload/files/99439304135.pdfIn PDF document text
    • http://syscall.com.tr/panel/kcfinder/upload/files/9832245364.pdfIn PDF document text
    • https://pobanofesu.weebly.com/uploads/1/3/1/3/131398475/wapomekup.pdfIn PDF document text
    • https://zinebogexorebo.weebly.com/uploads/1/3/1/4/131437984/5876580.pdfIn PDF document text
    • http://ultraljud.nu/bild/files/xelidogadivuxizovejibeg.pdfIn PDF document text
    • https://zakexexeg.weebly.com/uploads/1/3/4/7/134720850/vusotol.pdfIn PDF document text
    • https://susakatevasek.weebly.com/uploads/1/3/4/8/134871092/dedirerunugi-wagekixuxuz-jelosakef-jowov.pdfIn PDF document text
    • http://tvoirostov.ru/ckfinder/userfiles/files/tomufomafozalikaz.pdfIn PDF document text
    • https://computerzone.pk/file/bixusadamuga.pdfIn PDF document text
    • http://chandravanshi.com/userfiles/file/fawupabo.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_off0000b175.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b175.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB175 17328 bytes
SHA-256: 0d7abbcf88d73067b18c29c34df9367ed12b836d374a5732a49a167b3f457135
font_01_sfnt_off0000dea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA3 10840 bytes
SHA-256: f155a3b5255f43d59c3d3603f3beccb02d24f58c395c1d74f9998a8ea049410a
font_02_sfnt_off0000f7da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DA 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336