Malicious PDF — malware analysis report

Static analysis result for SHA-256 847c6e30d3dab947…

MALICIOUS

PDF

68.1 KB Created: 2020-11-14 16:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-06
MD5: 55094a10cb46fdeb050d87241aef4225 SHA-1: a14f69893194a7dc70669a38d535c1c0438011a1 SHA-256: 847c6e30d3dab9473357068429cc434286a19151406cfbd243d10aba76db43d1
234 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.
  • 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.
  • Travel-support phone-number stuffing scam high 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.
  • 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/4447663/normal_5f9dc88edc200.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_5f926002f2aeb.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/the_best_chainsaw_sharpener_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/35019209898.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402706/normal_5faa158d0a08e.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/pesterchum_download_windows_8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383792/normal_5f9d75d6bb351.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/18679723471.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/fazeligukimegasepuvu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377098/normal_5f9d0efbb75c9.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/oceans_8_free_123_movies.pdfIn PDF document text
    • https://cctraff.ru/123?utm_term=margarita+louis-dreyfus+2020In PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c78e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c78e.bin)
    • https://uploads.strikinglycdn.com/files/f71b7711-8325-4b61-98c8-6f846d54f901/vowelasod.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_off0000c78e.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c78e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC78E 5488 bytes
SHA-256: 46a6bac67a42aa827778f25124d0959c37cfed2a46a9ad7af20810cd7a1197ce
font_01_sfnt_off0000da62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA62 12880 bytes
SHA-256: 0368a1ef4517eca348cb7140d32bc5c5306783ccc7d9bc5a7a532620d3923575