Malicious PDF — malware analysis report

Static analysis result for SHA-256 4252cbbb2ce960c1…

MALICIOUS

PDF

85.0 KB Created: 2021-04-03 13:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 4c591af78f5a7da137cefbeecca69ea0 SHA-1: 9d172d43d4e63da90470cee5a1a3292db0bc9f04 SHA-256: 4252cbbb2ce960c1bc3676e4198fa6a2f1d80fc4224d813b63bd14710060f0c0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=que+es+la+diestra+de+dios PDF link annotation
    • https://cdn.sqhk.co/lemijexo/fHHeNqS/minecraft_world_map_download_survival.pdfIn PDF document text
    • https://cdn.sqhk.co/dikapagoloza/dnhbibb/15618219250.pdfIn PDF document text
    • https://gurekageta.weebly.com/uploads/1/3/2/6/132695257/bisowaxi.pdfIn PDF document text
    • https://komuwewolidixat.weebly.com/uploads/1/3/4/8/134871085/2774512.pdfIn PDF document text
    • https://cdn.sqhk.co/naludibeg/9xgeuha/water_slide_inflatable_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/fabetojowuje/hQIhgXG/zifexiwanokodiliweramuwa.pdfIn PDF document text
    • https://tavugalijob.weebly.com/uploads/1/3/1/1/131164394/2330168.pdfIn PDF document text
    • http://bodaweziwov.mypressonline.com/major_biomes_of_world.pdfIn PDF document text
    • https://nipetetoxijekuj.weebly.com/uploads/1/3/4/7/134718304/balabikigetumavuvo.pdfIn PDF document text
    • http://dolevukijera.iblogger.org/vosotasorozitez.pdfIn PDF document text
    • https://cdn.sqhk.co/lejesapazud/hbQnzjc/synthwave_radio_station.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405185/normal_605f3c6530012.pdfIn PDF document text
    • https://cdn.sqhk.co/runetonorox/ewoidmh/bangla_waz_audio.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzifixe/biDhgih/92761882612.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496826/normal_603eb13a79db0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380680/normal_6041f435097ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418786/normal_603d9e490a48a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500453/normal_5ffe9840a0267.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://domuromu.atwebpages.com/sabelevomupi.pdfIn PDF document text
    • http://lipuwetaw.epizy.com/33065390069.pdfIn PDF document text
    • http://dovovefuwaxav.epizy.com/46420711858.pdfIn PDF document text
    • http://vedudide.rf.gd/jio_store_whatsapp_application.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B83 4880 bytes
SHA-256: 970a13cf76a2952bb20ec053a20b6c05d752cbb1c9c90bd16aaec31840552930
font_01_sfnt_off00011c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C22 12704 bytes
SHA-256: f87bfe2b3bf76d34d8dbb6337ae97e4111b28a69e8ff29fa4aa6f029797da4ed