Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2433ee433a73a5…

MALICIOUS

PDF

73.4 KB Created: 2021-01-25 20:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 27230e35ed58a7c54622b2957da73c57 SHA-1: e71d29ad426522049222fa37b0059529f61be8b7 SHA-256: 1e2433ee433a73a58b3bab9930173a1336c54fd8950ca540ed3830031e50d2c7
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://baarspo.ru/aws?utm_term=insomnia+top+guidelines PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370071/normal_5fc61d5448e41.pdfIn PDF document text
    • http://carbackseat.site/dafowujomuwateje693sm.pdfIn PDF document text
    • https://cdn.sqhk.co/velujuvaxal/9hgahal/offline_music_player_for_iphone_7_plus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372073/normal_5feb3a45b1661.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374360/normal_5feb72ae52fda.pdfIn PDF document text
    • http://mamontov-net.cc/67978341163do0qr.pdfIn PDF document text
    • http://golden-bridge.pro/74144889682vzc38.pdfIn PDF document text
    • https://cdn.sqhk.co/jujadiziga/mmgcZUO/96045233158.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/ggihsgi/61810941002.pdfIn PDF document text
    • https://cdn.sqhk.co/kokuxisa/bDAchjT/zoo_animal_kindergarten_activities.pdfIn PDF document text
    • http://reduslim-ordina.site/berodupofabaloforomuopl48.pdfIn PDF document text
    • http://confirmyourverifiedbadge.com/sexitujabowujuk9c5x.pdfIn PDF document text
    • http://cardioactiveitalia.site/vefozedok2xnpq.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/ie3ghJm/seviduxo.pdfIn PDF document text
    • http://instapriz365.site/wepefugaxatireladukuo8t6y.pdfIn PDF document text
    • http://robinmani.site/61939079879zuwgm.pdfIn PDF document text
    • https://cdn.sqhk.co/kurafuso/iSCTzhd/nikah_mut_ah_adalah.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/padadutiseni/lazobofilapedategerokap.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_off0000e587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE587 5120 bytes
SHA-256: ffa6d71ba49c376edc805913925154325fd16ddb51d13fd28626b1d7388d02d0
font_01_sfnt_off0000f6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DE 9956 bytes
SHA-256: 5537b8f188efae135e05df26fd152e5997aa5d7f3fefd2cf578a403622851706