Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7f434c2d29b799…

MALICIOUS

PDF

97.4 KB Created: 2021-02-23 18:11:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 92b5e4e726352bb93c651acc57fa929f SHA-1: 5d500dc281837976d4a73aff4dc05813f25b811c SHA-256: 0d7f434c2d29b7997eb455bdde12cd0f0c49450ab62bf3589be52cff3c3d1050
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://baarspo.ru/wb?keyword=pathetique%20sonata%202nd%20movement%20piano%20sheet%20music PDF link annotation
    • http://salleop.xyz/40349331944q424w.pdfIn PDF document text
    • https://gadofipod.weebly.com/uploads/1/3/6/0/136056298/muzibas.pdfIn PDF document text
    • http://gobalesevusob.iblogger.org/25008443939.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413122/normal_5fd3893a8e566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419820/normal_602eeb836bf9a.pdfIn PDF document text
    • https://tufakuxumiwe.weebly.com/uploads/1/3/1/4/131454237/dukipedep-zukepivoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480753/normal_5feb1bc21a3b0.pdfIn PDF document text
    • http://hangookoil.ru/379267399417k3u7.pdfIn PDF document text
    • http://copyrightsupportforlnstagram.com/xasibizeborekif4d2qz.pdfIn PDF document text
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/nufori.pdfIn PDF document text
    • http://trening-ekaterinodar.ru/zemedorogukivunet1h0ai.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xarozitapakegur.epizy.com/juvevovupapa.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/corresponding_angles_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/chirutha_movie_songs_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/brocade_g620_installation_guide.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_off00012617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12617 5504 bytes
SHA-256: 2c860e74ce339f3df825d27d7b0232a3e133488d879be476632b0fbc07acaa54
font_01_sfnt_off000138b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138B7 22820 bytes
SHA-256: 96b7e611949ac0c322785d377c6071a988f03e736fa3a0cdb4d1c6729e1d3065