Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bf59d3a480bcbf5…

MALICIOUS

PDF

72.0 KB Created: 2021-02-23 06:51:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 297bfca95665b5001e6e287d91955031 SHA-1: feb08303a1cc1088c1f95b05df1486a8afd7ce49 SHA-256: 1bf59d3a480bcbf52da232d08b4c14e1681b5f00704a59ca85c504f341c20d92
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://seumenha.ru/wix?keyword=dragon+ball+z+dokkan+battle+mod+apk+4.10.1 PDF link annotation
    • https://motixovelubebov.weebly.com/uploads/1/3/6/0/136085904/1907444.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/igjaiea/39503255917.pdfIn PDF document text
    • https://nitevafatuva.weebly.com/uploads/1/3/4/8/134872456/24d585e5.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwopazeg/iijdjhN/photo_to_video_maker_editor_online.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/ijrfv0c/venice_travel_guide_app.pdfIn PDF document text
    • http://jajeredax.22web.org/cs_1.6_cd_key_non_steam.pdfIn PDF document text
    • http://jabodaligononu.iblogger.org/12435992888.pdfIn PDF document text
    • https://cdn.sqhk.co/xovujiroveg/1VghhbA/sharpen_synonym_verb.pdfIn PDF document text
    • http://basepati.22web.org/terizizeninoponikefuleluz.pdfIn PDF document text
    • https://cdn.sqhk.co/fiziroluj/bMidCgj/89706208773.pdfIn PDF document text
    • http://nizeguz.iblogger.org/good_citizen_booklet.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/iVibhfZ/75848553431.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
    • http://pesafitibum.epizy.com/94674829973.pdfIn PDF document text
    • http://getakufo.epizy.com/zaxizaza.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/antes_del_fin_ap_spanish_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/anuraga_karikkin_vellam_movie_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/chore_chart_blank_template.pdfIn PDF document text
    • http://wexaxota.epizy.com/ambrose_alli_university_admission_form.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_off0000cc6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6B 5408 bytes
SHA-256: 76d36ae126d1b762292b9debefc8deef07ce1a76428f72effc987c3cacffeaa4
font_01_sfnt_off0000dec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC9 10596 bytes
SHA-256: 3fd7077c8b86a8f83a2fd490bf023722618aa752a9cc7c43b0dc4895e49c24ef
font_02_sfnt_off000102dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102DD 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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