Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace078aa917c16d9…

MALICIOUS

PDF

68.4 KB Created: 2021-01-24 10:23:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c45b9ce86bfa331a461e5bd47f02594c SHA-1: 7ac0d04c9072ffe95fa01ffce2594c82bcbfa655 SHA-256: ace078aa917c16d9e59a1c5c0944a4cc5e5e454edc563e72757e6c4b56e39f29
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/aws?utm_term=avery+template+5167+for+openoffice PDF link annotation
    • https://site-1252994.mozfiles.com/files/1252994/wanted_arcadian_chord_guide.pdfIn PDF document text
    • https://site-1247871.mozfiles.com/files/1247871/45605787731.pdfIn PDF document text
    • https://site-1172119.mozfiles.com/files/1172119/87785929145.pdfIn PDF document text
    • https://bevabuje.weebly.com/uploads/1/3/4/8/134897483/jipiramav-pumox-woxinifukizet-taxisojun.pdfIn PDF document text
    • https://site-1172435.mozfiles.com/files/1172435/50887932356.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/ifhbsgj/vokugabexakidemevewamik.pdfIn PDF document text
    • https://site-1184420.mozfiles.com/files/1184420/guvodunuretux.pdfIn PDF document text
    • https://site-1173682.mozfiles.com/files/1173682/23793908432.pdfIn PDF document text
    • https://site-1167953.mozfiles.com/files/1167953/2019_shelby_super_snake_2020_shelby_gt500_price.pdfIn PDF document text
    • https://xigujevaw.weebly.com/uploads/1/3/4/7/134701692/1682ed04f.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/iaiaMaY/final_fantasy_16_movie_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/fabozesemi/dhgDrhe/do_it_note_simple_goal_tracker.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/jevopemosod/choices_open_heart_chapter_6_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/xamowagipupoxejuxavejefi.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/gowatojum.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_off0000cd12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD12 5544 bytes
SHA-256: f89140de5eb9f266d0e6d39b1494d7b3438cf14a141b17199708e25303729dea
font_01_sfnt_off0000e000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE000 10824 bytes
SHA-256: 237a01888065fb82d44aad173dcd363c083fdfcde7d8f3faaa2150ed5f3b1846