Malicious PDF — malware analysis report

Static analysis result for SHA-256 79381a02e4a82acb…

MALICIOUS

PDF

82.5 KB Created: 2020-11-17 10:12:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 2991a220fbec2a82b8d956dfb754b5c1 SHA-1: 12991c570bfc919be14c00ce2e2d42587b5d0aee SHA-256: 79381a02e4a82acb9cff168b0627409446050934c7428d51e7bc5d1c92ccb684
194 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
  • 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.
  • 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://cctraff.ru/123?utm_term=ducky+from+land+before+time+yup+yup+yup In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f95b63ee180d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447085/normal_5fa455c3eff4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383446/normal_5f9265c8d1c69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485457/normal_5fb2b57042d4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/what_are_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/jinodekixasagulaxesudile.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/fagipigakubisenopuvaninid.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/voltage_stabilizer_circuit_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/1_to_60_horde_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/underground_fat_loss_manual_banned.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/reaper_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/76212151830.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/70901029252.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F5 5312 bytes
SHA-256: dab15ed696ece8a94668c7177279c77d3249d717df3622e44e2ecd20d8db12f2
font_01_sfnt_off00010af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF1 10668 bytes
SHA-256: c89808f1a5ccfed630276ae17ccefd6cc670ec37850ba2b697df53d3eb7a073e
font_02_sfnt_off00012f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F44 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3