Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cf543aef0c75a6b…

MALICIOUS

PDF

71.6 KB Created: 2021-02-15 19:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3bace6360f1056dca7c2d98182128db1 SHA-1: 41baf01cbf0afc666524d8960742dc5b999a96ad SHA-256: 2cf543aef0c75a6b6c6167da024d3cb779ecfa1cfecd05763fb85e9eddf6ac61
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=kindle+fire+10+user+manual PDF link annotation
    • https://muxililepojas.weebly.com/uploads/1/3/5/3/135344509/4568909.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/yifdrul/dudel.pdfIn PDF document text
    • http://italy-small.space/finotalizizsgqeo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490516/normal_60159290c0825.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481834/normal_5fe3e132b42d9.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwufupi/jdhiyYI/conversion_chicken_pounds_to_cups.pdfIn PDF document text
    • https://dofafurubes.weebly.com/uploads/1/3/4/7/134762343/sulalulixewimit.pdfIn PDF document text
    • http://spindlndou.space/godazevim1wl6s.pdfIn PDF document text
    • https://retowukiri.weebly.com/uploads/1/3/4/5/134592720/zatedirefuvur.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/hh2y3Tq/pretty_brave_xo_trainer_blush.pdfIn PDF document text
    • https://pibigetikuke.weebly.com/uploads/1/3/5/3/135387636/bisefasaweno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408002/normal_5feb46f82304f.pdfIn PDF document text
    • http://simcars.ru/48050324144qg2yh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403118/normal_5fcb5d90edac0.pdfIn PDF document text
    • http://zvezdasevera.online/mario_theme_song_clarinetqsv1q.pdfIn PDF document text
    • http://cherrypimp.online/pininutojutmdp5x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482009/normal_5fe3348874bec.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/iehhjjh/doge_meme_sounds_wow_amaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xefavab.rf.gd/57828550942.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_off0000dd0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0E 5216 bytes
SHA-256: 16740a1900e99aa05452a0597b9ed16c62aba355b37bc433f5d637650ff88d9f
font_01_sfnt_off0000eeba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBA 10120 bytes
SHA-256: 7211e62d6725e24f2881dd888fdc9167cb6c135f1c4ad05f06e91724aa2e0ffd