Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8818793a544aeb…

MALICIOUS

PDF

76.3 KB Created: 2021-01-30 15:02:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 48c531ac37a339a824b804518d7a0590 SHA-1: 919a3a0704c14fb719f6c7a80764a0c266a749d4 SHA-256: aa8818793a544aebe1d2f9c78e81ce824138b1e2cc0ccc15e732271515bc55e3
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://trafffe.ru/wb?keyword=marketing%20plan%20for%20new%20real%20estate%20agents PDF link annotation
    • https://cdn.sqhk.co/zexukobesu/B6jaghh/fallout_shelter_special_points.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/Hk0ijhd/ludo_star_2017_new_version.pdfIn PDF document text
    • http://kokofiru.22web.org/notepad_xml_formatter_plugin_32_bit.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/wobuzisibal/littleroot_town_sheet_music_flute.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/12620477569.pdfIn PDF document text
    • http://sunuwib.epizy.com/wetivapivolurax.pdfIn PDF document text
    • http://kikexufan.epizy.com/clyde_river_fishing_report_vt.pdfIn PDF document text
    • http://povalimokuwov.rf.gd/invitations_templates_for_free.pdfIn PDF document text
    • http://ketanuviz.epizy.com/creature_movie_ka_all_song.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/97660210365.pdfIn PDF document text
    • http://sajumapudetuji.rf.gd/colorado_state_patrol_accident_report.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_off0000ee48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE48 5228 bytes
SHA-256: 623fc4dd662313b8aecdac50e03c036954b9b0f50e079f8d463dae92d721e360
font_01_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 10700 bytes
SHA-256: c6d358c7ae08a577ce2ca9109ca82c7fb595ddaf35d75e2e2f8fa101e49d4f80