Malicious PDF — malware analysis report

Static analysis result for SHA-256 def08d2a92778481…

MALICIOUS

PDF

76.4 KB Created: 2021-03-04 10:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: f2db792fc123e0605b24f16754917061 SHA-1: cfde7aa7048d82942ded668d2cdb7c3cd0d3b9ab SHA-256: def08d2a9277848167e47ba84b5228def1b9af9db9d7fe3c6d89ca56fa22a8cb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/123?utm_term=darth+maul+son+of+dathomir+review PDF link annotation
    • https://perasukene.weebly.com/uploads/1/3/4/6/134644841/960de404237c1.pdfIn PDF document text
    • https://cdn.sqhk.co/pakuvesajuwo/Sn0VGOq/201465838.pdfIn PDF document text
    • https://cdn.sqhk.co/kolusugego/LgfiiDL/tiviviwiratizokobew.pdfIn PDF document text
    • https://mibinataxufix.weebly.com/uploads/1/3/1/4/131438539/b980a698f723ee0.pdfIn PDF document text
    • http://bioforcecolumbia.site/xbox_360_controller_wired_for_windows_1068nz5.pdfIn PDF document text
    • http://tezosomebapixim.22web.org/vonajexozozupo.pdfIn PDF document text
    • https://xuguxoxarakijob.weebly.com/uploads/1/3/2/7/132740494/kimamugubesivax_pexoxujitig_joxeni.pdfIn PDF document text
    • https://jipuziloki.weebly.com/uploads/1/3/2/6/132695969/2803415.pdfIn PDF document text
    • https://luxakanodaz.weebly.com/uploads/1/3/4/5/134589800/mitawoduzukow_kunujugi.pdfIn PDF document text
    • https://zubisixoligifi.weebly.com/uploads/1/3/4/4/134479514/zawelixonaguzinum.pdfIn PDF document text
    • https://cdn.sqhk.co/kusasuzona/ghe4kcY/poxejozesaniwubifofuta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/77021519093.pdfIn PDF document text
    • http://livajurusurex.epizy.com/93543826597.pdfIn PDF document text
    • http://tasolemasolaka.epizy.com/safety_movie_cast_teacher.pdfIn PDF document text
    • http://gozejozonamolub.rf.gd/vuxutoxajubono.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_off0000eec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC7 5300 bytes
SHA-256: acf08af8fc01a3bdd2a4249960b577240325794ec9274d3a46efa4ddec2ac6a2
font_01_sfnt_off000100ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100BA 10588 bytes
SHA-256: 25a6c494f452c1edbd3287a7b225d0ca8aaa04db8f38e2e006a64f0fcf77d9b3