Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9761a6c6ac2e33b…

MALICIOUS

PDF

64.7 KB Created: 2021-02-01 23:52:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4de2691dd04bf8ab24006e8de7b56e7b SHA-1: 381d5a85bbb2e088247ce564ccf74f5054036af0 SHA-256: f9761a6c6ac2e33b58c3519459a2d77eb6253b12d1e677f7ae17a18e3d058158
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF was flagged by multiple heuristics, including a high ML score and ClamAV detection as a phishing trojan. The document contains numerous embedded URLs, with several pointing to disposable domains and one specifically identified as a link farm. These elements strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/123?utm_term=kenmore+ultra+wash+quiet+guard+4 PDF link annotation
    • http://medyayazilimtr.com/zunonunezilebebetiz9swh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_6018137bb1ab8.pdfIn PDF document text
    • http://sunshop.pro/videos_tiktok_teluguyujcr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383146/normal_5fcd0beab4aa7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366630/normal_5fd8c9c360c80.pdfIn PDF document text
    • https://cdn.sqhk.co/libavesonon/ijaiahe/bedewetero.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/ciiHQCn/57713290019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367308/normal_5ff2fa139ec50.pdfIn PDF document text
    • https://cdn.sqhk.co/febowozefu/jZRjdVu/jopupivubikotozavud.pdfIn PDF document text
    • http://mugedly.xyz/3171862747193v46.pdfIn PDF document text
    • http://reawont.online/22188726366lhn4g.pdfIn PDF document text
    • http://sparzha.club/1279898535286z4f.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/potofaw/2138813933.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/kepofovod.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/interview_with_a_vampire_full_movie.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

Related samples 4

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_off0000c0db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0DB 5512 bytes
SHA-256: 19d87792a57443cb9e4844360684750c66b5896d4daa2eb7a96830d66efd3ff8
font_01_sfnt_off0000d37b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37B 10204 bytes
SHA-256: ddda57fb3a9d3d3464310527548a950e2f65c268d4436cafe06cea4ddbf51f16

Open this report in the interactive analyzer, or submit your own file for analysis.