Malicious PDF — malware analysis report

Static analysis result for SHA-256 78218e71bf3f53d3…

MALICIOUS

PDF

79.5 KB Created: 2020-11-17 08:34:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 9f19a1fc5665be2e3a7bfe0a6f4d74ae SHA-1: 02f81b3d06c7dd468e97b04918715026782bff07 SHA-256: 78218e71bf3f53d3e105732aaa58c8f1b37a2e1e99593df1dc7dc2df5df0f08a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://trafffi.ru/strik?utm_term=monster+hunter+world+insect+glaive+armor+guide PDF link annotation
    • https://kubinivoboduwu.weebly.com/uploads/1/3/4/6/134601548/6926848.pdfIn PDF document text
    • https://woxujinugav.weebly.com/uploads/1/3/4/3/134305359/fonebepumobipabiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wizedumi/yeatle_hammond_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/32298350174.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/2412507263.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfa8d0c7-cd80-4321-99bc-8707d7edb8fb/jagufowaloxewok.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/wujara.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/victoza_dosing_chart_day_supply.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4194ca57-644f-4587-a0e4-9aab240601e2/dotopezubaruboduruwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a9abd05-261e-4322-9219-e40a9b99269b/72176625982.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/class_11th_chemistry_lab_manual.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A6 3220 bytes
SHA-256: d79750bb2f20a3ba9bb930b6b4b31105ffbe3c34e59909da052283356c1a5161
font_01_sfnt_off0000e01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01C 5508 bytes
SHA-256: 59b752551bece21fdec92f4816b3ebb44a07124990e9b78071f916f27d7dc27b
font_02_sfnt_off0000f2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D3 12812 bytes
SHA-256: ab88ebdbe16b00d3cd0b4257d79a7d1cc5e0ef28aae3ac567686dc6bd89a2996
font_03_sfnt_off00011bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB5 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848