Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c8c3fa3c23bdee…

MALICIOUS

PDF

64.0 KB Created: 2020-12-20 09:59:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-02
MD5: c3289d6b09437a86b32fe808b99d7ea1 SHA-1: 9a20ff89ae2d262ade455e2483088e9faba4d9c4 SHA-256: c0c8c3fa3c23bdee7872ba1c0014b811044f4eca2a496a3e20a7afc3a41a8fe4
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=minecraft%20pocket%20edition%20pc%20exe%20download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f9f8cd1260df.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/64613449482.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/xevigixefizabarilenu.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/soulsilver_safari_zone_map.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374522/normal_5fa1f6484eab3.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000bd51.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000bd51.bin)
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd00b9b4c4d833b8be38c4/1606222009401/sevanobewexariretovomuw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc532aedf132613bbd9a2a5/t/5fcc4136d336b863f0b61344/1607221559768/38801555110.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5abc8084698658e7ee89a/t/5fcb912a11c29807e6db7b21/1607176490545/durumunupojumelit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b578085bf90c0e1e0035/t/5fc6480ae18c5c478ed0bcee/1606830092550/kulawe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe120e5147b14804faa3de/1606291983418/tolejifapogisibu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd56316f6d44b07b8b81c/t/5fc6e81b3ac9c763f4c8443c/1606871070943/90079579582.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_off0000bd51.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD51 5200 bytes
SHA-256: 713f039d97c63638a6af06fd3385465d643ac5a4782a8f4c4d92fa5e67a8dda8
font_01_sfnt_off0000cf36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF36 10692 bytes
SHA-256: 828bd3f345efac4a367b076f334e8bdc9d45f0a982ab1daecad90abb5a6ff5f9