Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 8f71d8a7a9c1e59a…

MALICIOUS

PDF / .VIR

73.9 KB Created: 2021-01-14 13:45:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-01-09
MD5: 3a28f6b741f5a3d3ea894c28790821c3 SHA-1: 0661b245bbc853ffbd3006028e6bf7bd8c987a42 SHA-256: 8f71d8a7a9c1e59a206eb80be4f614b2fe02713a65c723f8fdd1bc531c8c8218
224 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
  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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/123?utm_term=minecraft+redeem+code+windows+10 In PDF document text
    • https://site-1168049.mozfiles.com/files/1168049/xiradixegapumijolu.pdfIn PDF document text
    • https://site-1236495.mozfiles.com/files/1236495/calls_blacklist_pro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_5fa3192e467f5.pdfIn PDF document text
    • https://site-1173833.mozfiles.com/files/1173833/pisododedu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417025/normal_5faa13c76f75f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403952/normal_5f9b6387e8c8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387586/normal_5fa3adb7de3f0.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/47238535092.pdfIn PDF document text
    • https://site-1166618.mozfiles.com/files/1166618/56170108530.pdfIn PDF document text
    • https://site-1168164.mozfiles.com/files/1168164/xubuwamisobizavusozutodel.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/fTcgcpv/remove_curse_of_binding_minecraft.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446944/normal_5f9dca3ab5430.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/61037994058.pdfIn PDF document text
    • https://cdn.sqhk.co/difanemifal/Xzic8if/52454453387.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000e4f1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000e4f1.bin)
    • 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 extracted file (font_00_sfnt_off0000e4f1.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F1 5428 bytes
SHA-256: 2f37de47d5e0d2af08f4d053c2e4f17cd0183661a42aa8baad7cd8495eda076b
font_01_sfnt_off0000f773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF773 10272 bytes
SHA-256: d7804fb8801ab73621d06b5546ae42626214824c897206e50c614f21573319b5

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