Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e09783d4a1b3654…

MALICIOUS

PDF

70.9 KB Created: 2021-02-10 16:50:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1a7fa318a75a269fab8fb415a0d15923 SHA-1: b0e5649e749428b157be3c8348759aed91691275 SHA-256: 6e09783d4a1b36546d207daf4b5b56608658da902129462aa901e1597d38f856
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wb?keyword=games%20apkpure%20offline PDF link annotation
    • https://nivagevap.weebly.com/uploads/1/3/1/4/131438423/8823593.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/a3jbjbT/71584547289.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463526/normal_5fef8a4827a4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460066/normal_600ecde65435d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420911/normal_6006bbd75100c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418013/normal_600d6b0fde0a1.pdfIn PDF document text
    • https://cdn.sqhk.co/potiribuwuf/5gjZVjb/movies_anywhere_activate_xbox_one.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421354/normal_60137bf397669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409098/normal_5ff2d7f70e8ad.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/weber_style_bbq_thermometer_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dewabop.rf.gd/64559330318.pdfIn PDF document text
    • http://tavejetenugaku.epizy.com/columbian_gold_tegu_care_sheet.pdfIn PDF document text
    • http://kadimupekomo.rf.gd/lol_evelynn_guide_s9.pdfIn PDF document text
    • http://wavusuwu.epizy.com/universal_self_scorer_biology_book.pdfIn PDF document text
    • http://wajutomagavugaz.epizy.com/39687532406.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_off0000d9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AE 5144 bytes
SHA-256: 17ff871a8d7c9c98529ff0da831a12529f2d7028ee3edaf9d59ca312c8843fb4
font_01_sfnt_off0000eb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1E 10580 bytes
SHA-256: 3884abc15ba64d6aa7d6af9a5e3e46624059be393107c619b86dcab9aa47d1e2