Malicious PDF — malware analysis report

Static analysis result for SHA-256 794388159859d4ee…

MALICIOUS

PDF

69.8 KB Created: 2021-02-23 10:22:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6bb6a7d0551fd9ff1995a819d4739338 SHA-1: 3bac92427e7ca861d0bb600384dc3d607a6aa286 SHA-256: 794388159859d4ee43f8faf5149e3c9f80015eea2d49a9d94eff9cf5e0b98b98
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=horde+leveling+guide+bfa PDF link annotation
    • https://rokopopowatapo.weebly.com/uploads/1/3/0/9/130969888/vajuked.pdfIn PDF document text
    • https://cdn.sqhk.co/xafeperale/eivjdyv/16831652643.pdfIn PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/eac821ad71d.pdfIn PDF document text
    • https://cdn.sqhk.co/lobinazema/ggflLtM/mine_engineer_salary_us.pdfIn PDF document text
    • http://xoxinusenavi.66ghz.com/12647005994.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/4376353.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460232/normal_5fea434ec7c31.pdfIn PDF document text
    • http://duzuxilobovix.iblogger.org/bhagavad_gita_prabhupada.pdfIn PDF document text
    • http://gopizapa.22web.org/71017450804.pdfIn PDF document text
    • https://cdn.sqhk.co/pejibuti/zgjJhem/smart_launcher_3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446944/normal_600841a031b84.pdfIn PDF document text
    • https://cdn.sqhk.co/rovifatira/h0z05hf/63780043029.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zamoguwudegovo.rf.gd/best_budget_spreadsheet_for_ipad.pdfIn PDF document text
    • http://derizarage.epizy.com/braveheart_full_movie_free.pdfIn PDF document text
    • http://faripemisale.rf.gd/quran_english_version_apk.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_off0000d5bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BB 5060 bytes
SHA-256: 31f01e170765a7cef426f77ccb7f2e678bd2b05745df32e787d50b0f21c8cdc1
font_01_sfnt_off0000e709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE709 10420 bytes
SHA-256: 9cbd49e73b6b03b098abcb7ddb0e6aacbb8976a5a8bb45c71d290837ae87fb18