Malicious PDF — malware analysis report

Static analysis result for SHA-256 db529dc650137b2d…

MALICIOUS

PDF

71.2 KB Created: 2021-02-07 14:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 54814f3197175dd49015ea3ddfd95e13 SHA-1: ac4f3b1a92fd9bba9b83b0e937e7a557e053b5f3 SHA-256: db529dc650137b2db18ca6ef3f95bd87991b962746da026b1230c314d97131cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://leonvi.ru/123?utm_term=songs+about+lord+of+the+flies PDF link annotation
    • https://cdn.sqhk.co/sarafogu/9gigzbS/how_to_keep_mosquitoes_away_at_night_indoors.pdfIn PDF document text
    • http://passive-income.ru/267822221226nqg2.pdfIn PDF document text
    • http://savadaqwe.space/zafelogedobogejokepojuv5mg7m.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/jfJjahb/epic_race_3d_free_download.pdfIn PDF document text
    • http://sodahq.pro/laroxujakidgabp6.pdfIn PDF document text
    • https://cdn.sqhk.co/ninasodivofi/hOGTShf/todawo.pdfIn PDF document text
    • http://papasewavixuk.22web.org/gotumu.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/sogovekevi/bad_boy_video_song_1080p.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/41911221313.pdfIn PDF document text
    • http://godidab.epizy.com/povabupujopoxabokesas.pdfIn PDF document text
    • http://wubavon.epizy.com/bapiraj.pdfIn PDF document text
    • http://gekavitominugi.epizy.com/decimals_in_expanded_form_worksheets.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/google_analytics_website_templates.pdfIn PDF document text
    • http://soxidavalib.rf.gd/polaroid_print_template_lightroom.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/autotype_exposure_calculator.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_off0000d952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD952 5412 bytes
SHA-256: b3dfc9eb0191ecdc853e2385914466ed4d042911b89b2bd1d20c0ddd1368c044
font_01_sfnt_off0000ebad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAD 10632 bytes
SHA-256: 1a3c40330a45c00b734f214459090982876f20cccf7ecbabe1df98993fc3ee2b