Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4885bdc5aa0eb0…

MALICIOUS

PDF

87.2 KB Created: 2020-12-18 05:29:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: 2e979be067e55348c046f41e21a661e8 SHA-1: 9afe351fdea6ef4e8f25eb5c6965f5ecf0dafd66 SHA-256: de4885bdc5aa0eb033e8a2bf415ac962b9bba8b590adf0e32201ee4b6a9c7718
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/4450251/normal_5fab83127af86.pdf In PDF document text
    • https://s3.amazonaws.com/debiwelof/brochure_design_templates_for_restaurant.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445882/normal_5fa33896a7ed6.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/33767303892.pdfIn PDF document text
    • https://s3.amazonaws.com/nujosuwemedadi/life_science_chapter_13_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/98698344403.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/50261752631.pdfIn PDF document text
    • https://trafffe.ru/wb?keyword=ba%201st%20sem%20english%20book%20pdfPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000e11c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000e11c.bin)
    • http://fedorahosted.org/lohitIn extracted file (font_03_sfnt_off000133d7.bin)
    • https://uploads.strikinglycdn.com/files/971ecefc-f77c-4925-aff9-259b70413422/royal_envoy_walkthrough_level_48.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7454133-d793-48e8-9b4f-ed95ca84d15b/64186258829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9999a3b7-8140-4b50-9e4c-2b301f8d1622/pusevidapixesilowovizu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3f469bd-ebdc-49d6-b7f6-38a43b55c55b/bobbili_raja_telugu_mp3_songs_free_d.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/553970d2-ca45-4753-adca-8e73960fc53d/horizontal_langstroth_hive.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_off0000e11c.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00011a09.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00011a09.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11C 5664 bytes
SHA-256: b0f8ea367aecc2d9a59fe34527e3d500bdb3262faae00b10fd7fd774e208ae5e
font_01_sfnt_off0000f448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF448 11000 bytes
SHA-256: 741ce2162a3d7fb4bb925172e372158f2d8c7419d9595c34332c804e6939fde6
font_02_sfnt_off00011a09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A09 17560 bytes
SHA-256: a862c6a69b1ceb769089c3cb0de1c00d487bbe7c0bf016b942acbb08efa3f161
font_03_sfnt_off000133d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133D7 8260 bytes
SHA-256: 155eee4bb141f8365694d969b196e601b85126ba86de58cfc6f4a1113fde989b