Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d867cbf49b3e0bb…

MALICIOUS

PDF

78.9 KB Created: 2021-01-29 07:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 2d253fe78ec51b6f0e6d0b402b24a16e SHA-1: 7c93dd1624aa4244929d28813dd04c88f4e8d8bb SHA-256: 5d867cbf49b3e0bbd5260e89f719e7746bca4236c89669a29309345cc6ad53e6
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/wb?keyword=instagram%20captions%20for%20baddies%20in%20spanish In PDF document text
    • https://laziboxejebemu.weebly.com/uploads/1/3/0/7/130740401/e120f9ea08d662.pdfIn PDF document text
    • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/nufetegirufome_gipuvosibaguvoj_negojobijef_dewovibir.pdfIn PDF document text
    • https://kufojomarolov.weebly.com/uploads/1/3/4/4/134401526/waluxijevoma.pdfIn PDF document text
    • https://wilegefozuf.weebly.com/uploads/1/3/4/3/134399327/2f51d2a991.pdfIn PDF document text
    • https://tolojosokuriw.weebly.com/uploads/1/3/5/3/135326177/3940408.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481839/normal_5ff9cd3307422.pdfIn PDF document text
    • https://zujogomute.weebly.com/uploads/1/3/1/4/131483029/riradekaz.pdfIn PDF document text
    • http://kieverts.xyz/jawirurokovu8rvx2.pdfIn PDF document text
    • https://wetarotener.weebly.com/uploads/1/3/0/8/130813606/58b78e5a.pdfIn PDF document text
    • http://resimpub.com/178149412531j3jg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489245/normal_6002ed469f29d.pdfIn PDF document text
    • http://hydra.moscow/45458818616dci50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407064/normal_5fe707bb6533c.pdfIn PDF document text
    • https://cdn.sqhk.co/butiluluvuk/Vibhhjg/learn_to_sing_online_for_free.pdfIn PDF document text
    • https://komuwewolidixat.weebly.com/uploads/1/3/4/8/134871085/786941.pdfIn PDF document text
    • http://chategratis.online/ivms_4200_manual_espaoln0td4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/h2020_coordinators_day_amendments_and_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/uttrakhand_b._sc_nursing_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/nigopalefedezeku.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_off0000f4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B9 5612 bytes
SHA-256: 120d506138133d616db510a8ebd8231f6848be97f50462624b79006d9593021a
font_01_sfnt_off000107a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A2 11476 bytes
SHA-256: 74c6a842485dc21340abca8005f8ca88e5bebeca2798680ddbf9534a50a09a9b