Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c657c1536b9786a…

MALICIOUS

PDF

73.1 KB Created: 2021-02-20 09:58:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: eafa7c8b6aad12a06185328d93a058ce SHA-1: 339a27d021e43e0c6569c9d3b2649f9a57bb6a16 SHA-256: 5c657c1536b9786a90657f2f69d90b327a58eed374d7e6717aed3a89dc8d5de4
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://druttle.ru/wix?keyword=derivados+del+petr%25C3%25B3leo PDF link annotation
    • http://ampinternational.org/dhoom_2_full_movie_hd_1080p_download_tamilrockers62h55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381541/normal_5ff9bb1cdac69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420748/normal_5fe4a2f58ba83.pdfIn PDF document text
    • http://mritzoliver.design/a_star_is_born_soundtrack_torrenttccz1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_600dc34bb5e65.pdfIn PDF document text
    • https://kasutuwisuruja.weebly.com/uploads/1/3/1/8/131872017/4597250.pdfIn PDF document text
    • http://clobuss.ru/missing_411_documentary_wiki43o7d.pdfIn PDF document text
    • http://beruvutekimeged.22web.org/buang_ruk_satan_sub_indo.pdfIn PDF document text
    • http://godevibusaxinoj.22web.org/68871455667.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/digjjDC/banamiloj.pdfIn PDF document text
    • https://satemegozujig.weebly.com/uploads/1/3/4/4/134477909/sapar_zegorowuf_tukirunemipok.pdfIn PDF document text
    • http://avtoshkola-region26.ru/sukulebgsxuq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pazizota.rf.gd/depelos.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/52268943254.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/67235983486.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/zebob.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_off0000dfa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA6 5148 bytes
SHA-256: cba77267e6aa300d49837d7e5c817aa8535d930620d32c424165e12e9369a4e9
font_01_sfnt_off0000f105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF105 11228 bytes
SHA-256: 87144ba7b609841ffd07d64c598a5cfecfed76d3b45e89fe13f2a098f12b551c