Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda4de59ff28c92…

MALICIOUS

PDF

68.9 KB Created: 2021-01-16 15:22:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 052e69afe722007ce90be1f14180f225 SHA-1: f6e99270c6e1fda92d60a273b84e7a283660d2b0 SHA-256: 3dda4de59ff28c92ca23a926ca2c5bcd3dab54cd355ccd0cf69555183ffd093a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/123?utm_term=bose+tonematch+t4s+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425912/normal_5fd36df784027.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426416/normal_5f9f8cb3255ad.pdfIn PDF document text
    • https://site-1176340.mozfiles.com/files/1176340/191932348.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f87c8686b4d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415291/normal_5ffb6f48197b5.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/ikiyji0/school_of_dragons_login_problems.pdfIn PDF document text
    • https://cdn.sqhk.co/powirafawume/Bhb8hig/archery_target_block_academy.pdfIn PDF document text
    • https://site-1176931.mozfiles.com/files/1176931/47745139895.pdfIn PDF document text
    • https://site-1176387.mozfiles.com/files/1176387/banenezoju.pdfIn PDF document text
    • https://site-1172347.mozfiles.com/files/1172347/game_chin_tranh_vit_nam_cho_android.pdfIn PDF document text
    • https://site-1200667.mozfiles.com/files/1200667/37379100052.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/ruzaganog/masozuvizonodexuxafesiko.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/double_object_pronouns_spanish_practice.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_off0000d143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD143 5080 bytes
SHA-256: af3433d5688cbd888156ba64564410bf23cfd1e55bb577bff3040a6cb0d17dd0
font_01_sfnt_off0000e269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE269 10928 bytes
SHA-256: f537802c3455d4c3396099e41f45e3c1805c4947513b45b07441a69cb1339305