Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd3b03f150b586b…

MALICIOUS

PDF

67.9 KB Created: 2021-01-14 17:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: cb8a4b6c8781d455b578d05e085b3aca SHA-1: 274d779bd5b96b9a85582a775218f7c9f52ca0d2 SHA-256: 3dd3b03f150b586b5e277aea6507023832538d4d9e9d8969b0f123633751f8d3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://traffmen.ru/wb?keyword=nvidia%20games%20apk%20for%20android%20tv In PDF document text
    • https://site-1173528.mozfiles.com/files/1173528/best_task_app_android_2018.pdfIn PDF document text
    • https://gijakumode.weebly.com/uploads/1/3/4/3/134306186/a5f2deccb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402706/normal_5faa15e98a1dd.pdfIn PDF document text
    • https://site-1176160.mozfiles.com/files/1176160/spinach_salad_recipes_easy.pdfIn PDF document text
    • https://site-1175190.mozfiles.com/files/1175190/355015526.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450151/normal_5ff03198a12d5.pdfIn PDF document text
    • https://site-1211253.mozfiles.com/files/1211253/answer_to_impossible_quiz_2_question_23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484356/normal_5fc4afc5cc146.pdfIn PDF document text
    • https://patewowuxafopon.weebly.com/uploads/1/3/4/5/134595548/c599ed12d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_5fb578e95eef5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380680/normal_5fae559525b85.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/lawakux/53601494177.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/nexen_roadian_at_pro_ra8_tire.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/19719807835.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_off0000cbd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD2 5424 bytes
SHA-256: 712457b015a0793d91f8a1a8d37ffd86ad2da68b81d5d13651ada14cb65d8452
font_01_sfnt_off0000de47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE47 10680 bytes
SHA-256: 506f3512cd5d6f166190965376b0860e6f79c4aa00b1cde9b07d74efeb904845