Malicious PDF — malware analysis report

Static analysis result for SHA-256 624ba12c3d3d0710…

MALICIOUS

PDF

71.0 KB Created: 2021-01-05 19:10:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: f65ac5021a116bcd18009b90eaa818f0 SHA-1: 9b6ea671ecc3e01eff93da8bd685cc3f9298073a SHA-256: 624ba12c3d3d0710efc094f37eb2b54169749f8f8ea03738e83ab774e5be769f
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=best%20craft%20furniture%20inc%20dundas%20road%20brillion%20wi In PDF document text
    • https://static.s123-cdn-static.com/uploads/4388841/normal_5ff42c3a1a0ce.pdfIn PDF document text
    • https://satijezusadevu.weebly.com/uploads/1/3/4/3/134310115/gigitaxogod_gufas_generul_zopesoxomuz.pdfIn PDF document text
    • https://xesapidad.weebly.com/uploads/1/3/4/3/134346602/neditafi_tebidokud_dirijowodomusit_belirur.pdfIn PDF document text
    • https://sanokigoj.weebly.com/uploads/1/3/4/8/134863934/luvujede-fasanafo-kefozoxodu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420592/normal_5fa56590ae5cb.pdfIn PDF document text
    • https://cdn.sqhk.co/kitolitik/igOgmbI/german_driving_license_probation_period_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/sofaxuleruri/RKPAqZT/stick_man_running_drawing.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457302/normal_5fd62c947c917.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370066/normal_5fa557f6da670.pdfIn PDF document text
    • https://cdn.sqhk.co/nurofiwele/idnaP3E/casual_games_40_best_games_in_1_application.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448750/normal_5fa559c377304.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450147/normal_5fa09b13adf10.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_off0000d561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD561 5296 bytes
SHA-256: 8dcdfb634b3ef134a72aa5488310135e45526f7f70a3d3d263d3f42c9cc09ff3
font_01_sfnt_off0000e787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE787 11936 bytes
SHA-256: 38649148092ad36425eec6a1f1c9822ad43b9a4379947cdeab8f8574d8b48af5

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