Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded4c9dba639c05f…

MALICIOUS

PDF

71.4 KB Created: 2021-02-26 12:37:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0beff8a01d04a2cf5f8c28d6321efd89 SHA-1: 6fad94521f4b55edb0c6527e901c0a8aee72c416 SHA-256: ded4c9dba639c05fd4d2b60091b6e65593c351f4c102a021c6334c6f12484c39
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/award?keyword=garmin+vivofit+3+bands+canada PDF link annotation
    • http://xuxetosufuzo.getenjoyment.net/jenusis.pdfIn PDF document text
    • http://thesimplycompleteseries.com/mikodoliz9uh2h.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/vexesebegoxugejejudobokog.pdfIn PDF document text
    • http://momentshop.website/jisewodedibeznzor5.pdfIn PDF document text
    • https://cdn.sqhk.co/koditisalupe/FgfrxOB/ruwatiluf.pdfIn PDF document text
    • http://instapriz.website/718249046383unc2.pdfIn PDF document text
    • http://organicnu.info/aa_step_6_7_worksheets62mur.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/khjjdhb/70173472846.pdfIn PDF document text
    • http://autokenn.com/9602168316sgd13.pdfIn PDF document text
    • https://ribovaboj.weebly.com/uploads/1/3/0/7/130775049/7d88a43.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwebuvowo/jgggchh/puvodiros.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bivojeda.atwebpages.com/47186832778.pdfIn PDF document text
    • http://xewegifugeralot.rf.gd/chhukar_mere_man_ko_song_pagalworld.pdfIn PDF document text
    • http://menimilerawapo.rf.gd/60521307761.pdfIn PDF document text
    • http://xulufavuso.rf.gd/simplifying_radicals_without_variables_worksheet.pdfIn PDF document text
    • http://valupakukav.myartsonline.com/how_to_connect_garmin_forerunner_620_to_wifi.pdfIn PDF document text
    • http://nupakavidowux.epizy.com/copper_leaf_sheets_michaels.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01E 5532 bytes
SHA-256: d665603292342a9b77afbd5ac4732aa0c60e4d875bbbfe90c35d94b3838e926b
font_01_sfnt_off0000e2de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DE 14896 bytes
SHA-256: fc3536acfde332f3141cb55ac1192ce61a227b15e5faf3cbcbd5081773d8f824