Malicious PDF — malware analysis report

Static analysis result for SHA-256 d115343c120e3543…

MALICIOUS

PDF

71.7 KB Created: 2021-03-11 14:46:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7b75b4d32db5e9a8a619f2d2255a3ed1 SHA-1: b39e468998da7a47a53e65a9ff6db6d922f71072 SHA-256: d115343c120e3543504409239ca09324c19bc1dd00fa9deff924fe68e838c094
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/award?keyword=employment+law+ireland+pdf PDF link annotation
    • https://kegegofelev.weebly.com/uploads/1/3/2/6/132681159/bijedowoxunig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425009/normal_602c5a4ee6736.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425483/normal_6018a7dd88176.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502698/normal_5fcb55e44ea29.pdfIn PDF document text
    • http://viwavidif.getenjoyment.net/solubiderozijofar.pdfIn PDF document text
    • https://sozobuxetezubu.weebly.com/uploads/1/3/4/5/134527793/josen.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/dilosuzekexivifu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484814/normal_5fd16f0a012b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_602474e094de2.pdfIn PDF document text
    • http://ralugugifoxatir.scienceontheweb.net/rabbit_hole_straight_bourbon_review.pdfIn PDF document text
    • http://jixewelo.scienceontheweb.net/45771922701.pdfIn PDF document text
    • http://pifedalune.medianewsonline.com/how_to_turn_off_descaling_mode_nespresso_vertuoline.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390097/normal_5fcb1141a2c8f.pdfIn PDF document text
    • https://fetepidema.weebly.com/uploads/1/3/4/6/134684810/afc8e6ce7ba.pdfIn PDF document text
    • https://lokawinopigu.weebly.com/uploads/1/3/2/7/132712062/2b8d682e95e85.pdfIn PDF document text
    • http://tejowigasinafu.getenjoyment.net/woxovesexaradonegi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fatavetotujel.onlinewebshop.net/mosadogogaver.pdfIn PDF document text
    • http://baxewape.myartsonline.com/how_to_start_a_theme_essay.pdfIn PDF document text
    • http://dupepoge.onlinewebshop.net/tidoxapaxizaxotid.pdfIn PDF document text
    • http://sawurawefivovo.myartsonline.com/anomalias_geneticas.pdfIn PDF document text
    • http://jamenajiko.myartsonline.com/sagevesilenimanemuzoxiji.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_off0000dcf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF4 5160 bytes
SHA-256: 5e2e741100cb9690373d4d6d452daf8eb6404cf24f2be8ca83b15fa633a43bd6
font_01_sfnt_off0000ee88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE88 10164 bytes
SHA-256: e145893ea43b6ac783766d7792257122f66b98ea3955d282dfeb0e898ef6f5b4

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