Malicious PDF — malware analysis report

Static analysis result for SHA-256 624d83edd6afad56…

MALICIOUS

PDF

70.7 KB Created: 2021-01-10 17:41:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 0ae593f1de7417d0f96ad69cbfe9b44a SHA-1: 4d2d731d842675a075b6038f0658d478cc52243b SHA-256: 624d83edd6afad56634eb8d4e9245f43ac23c0aa2743a5fb9dd7bac5e4f2e485
244 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
  • 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://cctraff.ru/123?utm_term=120+yard+shuttle+run+times In PDF document text
    • https://static.s123-cdn-static.com/uploads/4393752/normal_5fc4176cbfbc0.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/fakisexiwuxubin_zoxubibu_jadeko_sisif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447874/normal_5fc1b88c8bd51.pdfIn PDF document text
    • https://bivamotitujodo.weebly.com/uploads/1/3/4/7/134712473/bfc3eae.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/aTaFjaz/the_pirate_plague_of_the_dead_best_ship.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497369/normal_5ff92db440b8d.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/aggigct/73314531899.pdfIn PDF document text
    • https://zivazumuwekaf.weebly.com/uploads/1/3/2/6/132695746/7b67698f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379489/normal_5f97ed45a652f.pdfIn PDF document text
    • https://tasimaxexakopox.weebly.com/uploads/1/3/2/6/132681882/sananofemepawanopite.pdfIn PDF document text
    • https://soguleta.weebly.com/uploads/1/3/4/3/134305846/wasulixikariw-kifekeb-bukol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476437/normal_5fb2d5dd46e1d.pdfIn PDF document text
    • https://patewowuxafopon.weebly.com/uploads/1/3/4/5/134595548/eff2673aed.pdfIn PDF document text
    • https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/mewusojudujibiva.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 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_off0000d85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85D 5400 bytes
SHA-256: 5a87b252336c9fdd9ba41b43ec3766dbea4e0a4d82cf4ef5de1c23a427370c42
font_01_sfnt_off0000ea94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA94 10460 bytes
SHA-256: 5a3ccf8b1c5307fc6409f133821ddfe2dadb79b96a08628a3c625367fad688a0

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