Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad3598238d4bc0a…

MALICIOUS

PDF

70.6 KB Created: 2020-12-04 05:56:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 3350556fc63ccfa77f6a37ef71899f9c SHA-1: 33dbcbc16b5cd6443fca3fe3a1a171981c1465b9 SHA-256: 9ad3598238d4bc0ad1501603c54f59abf1cf0a49452d0b30bdb236ca35de3824
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://cdn-cms.f-static.net/uploads/4485448/normal_5fba3203ee98f.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4423772/normal_5fafeebc881ed.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/le_guide_du_routard_core_du_sud.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/mathematical_induction_problems_solution.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/wovijegow.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/the_non_designers_design_book.pdfIn PDF document text
    • https://tibanevugite.weebly.com/uploads/1/3/4/6/134655495/3c60e8cb547ce8.pdfIn PDF document text
    • https://ggtraff.ru/strik?utm_term=league+of+legends+free+riot+points+rp+codes+generatorIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ca0d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ca0d.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000ff15.bin)
    • https://uploads.strikinglycdn.com/files/f732e69b-ee4b-4f4e-9e73-3a7d0299ba61/charles_law_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73ef35f0-7270-42fd-97a1-9267c14ca602/1648704132.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5635189-60d7-4bab-9372-08cb3bd434be/wojavek.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc34393405d5340f338f1f3/t/5fc689c13485235c86aabfb3/1606846916185/t_mobile_scam_shield_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27d98fed-3b22-40dd-9632-5b09a1574fbf/101_okey_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2b68111-42a1-44be-a808-5827af9c160c/nobunaga_teachers_young_bride_episode_2.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 extracted file (font_00_sfnt_off0000ca0d.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA0D 5148 bytes
SHA-256: 9902350f8d9d51bfdb8b30d965a19b694502f79334aba34f99a3f008f14764dc
font_01_sfnt_off0000dba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA2 10440 bytes
SHA-256: aeaee38005a32a22f891de29b6b45defbcf6c610976c37466b7df3720aeebb58
font_02_sfnt_off0000ff15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF15 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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