Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ade593cd46f14e…

MALICIOUS

PDF

67.2 KB Created: 2021-02-07 19:55:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 357b9861617d934d818226216c6951b9 SHA-1: 2dddf34c6c85b906a94706bdd40aaef0a17378c1 SHA-256: c1ade593cd46f14ed2753f7d089b535fbe5de02a701eb748e4ed0cf45e68007a
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://maypoin.ru/123?utm_term=error+code+m7031-1101 PDF link annotation
    • http://sportplays.ru/neuman_wl_social_research_methodsx5v96.pdfIn PDF document text
    • http://dronextactical.xyz/62411757764wqp1d.pdfIn PDF document text
    • http://habercigo.com/junobimimobor8nnac.pdfIn PDF document text
    • http://consequences.space/levifakuswxrj.pdfIn PDF document text
    • http://sallely.xyz/45821795498zl7ol.pdfIn PDF document text
    • http://webpost.pro/web_design_templatesjsszh.pdfIn PDF document text
    • http://creditscoretrack.info/vurawekapemefuxe6n8eb.pdfIn PDF document text
    • https://tefajarusi.weebly.com/uploads/1/3/0/7/130775660/zapagozutedagesano.pdfIn PDF document text
    • https://femobideja.weebly.com/uploads/1/3/4/7/134735935/xowudap_sekikotogimel_xizowewo_zulixapiwa.pdfIn PDF document text
    • http://topstop.site/dr_david_burns_worksheetsl0n5x.pdfIn PDF document text
    • https://wekosidofanepa.weebly.com/uploads/1/3/2/6/132696212/1815871.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://putazosaw.epizy.com/can_you_automate_excel_spreadsheets.pdfIn PDF document text
    • http://bodudubabafixe.rf.gd/guzowutakamapeli.pdfIn PDF document text
    • http://dulidezupo.rf.gd/sebavozegipubere.pdfIn PDF document text
    • http://mulazukaga.rf.gd/steelers_news_report_today.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_off0000cb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB49 5092 bytes
SHA-256: f14e0785ee6d80d7d119bc72aef565728cc631acf9f43dd6db2124513e2184a2
font_01_sfnt_off0000dca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA0 10336 bytes
SHA-256: 64e61a11bac932bebecb36493546d841844eede0812c5dbfbdf86f4d392e9b26