Malicious PDF — malware analysis report

Static analysis result for SHA-256 79fd4e22fe6bde1f…

MALICIOUS

PDF

74.9 KB Created: 2021-03-03 03:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2f2172be7847bb88d9a5214868383a4b SHA-1: 476c2bda42fbae5c28a065556a423a89913735c2 SHA-256: 79fd4e22fe6bde1f4dbca6b88c248ed5c68eb7c198c31e9c7e908bf6ec609039
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://vilenefex.ru/123?utm_term=save+paint+as+image PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478408/normal_5fefcfec2a218.pdfIn PDF document text
    • http://cyberlife.store/death_note_lyrics_gnarwiwqa.pdfIn PDF document text
    • http://maykistore.ru/42006827305ubb5.pdfIn PDF document text
    • https://cdn.sqhk.co/norowitidot/jidPMMp/3d_pinball_game_free_download_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391008/normal_6004517db65a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420600/normal_5ff444ae6347d.pdfIn PDF document text
    • https://xevoniwibefi.weebly.com/uploads/1/3/5/9/135984774/4707229.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/cgi_vfx_freehwwde.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/hgI6hj0/sims_freeplay_cheats_2019_no_human_verification.pdfIn PDF document text
    • https://cdn.sqhk.co/gifitebona/jggivib/xixos.pdfIn PDF document text
    • http://trokot-online.xyz/destiny_whisper_of_the_worm_chestsgizj7.pdfIn PDF document text
    • https://kedixusivazusug.weebly.com/uploads/1/3/4/8/134869684/robowesevate_labosigotodiwe_lagunofamoguvog.pdfIn PDF document text
    • http://idealslimitalia-ufficiale.site/bixodabiwotekaboxaxolufqppz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415304/normal_6018f7dfbbca3.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/mukutud/hooke_s_law_experiment_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_off0000e7d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D9 5176 bytes
SHA-256: fe4836bc35162329071c0e4605abea5583ba571977eb8361077cbf6877d45504
font_01_sfnt_off0000f96b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96B 11160 bytes
SHA-256: aeb73252c27b7ec5720e8d5627168b6af90fe79fd2e60298c9b5a5e517bf2049