Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be9ca211e9e245c…

MALICIOUS

PDF

69.5 KB Created: 2021-01-24 22:08:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 6e38b25e37b125d67821fb083b115741 SHA-1: d03e66974d487061994f72a004dd9be62b8f8354 SHA-256: 3be9ca211e9e245c72d72040596b31e93e3a08eb3c58ca6a92bc13b569c21c92
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/aws?utm_term=minecraft+free++mac+no+virus PDF link annotation
    • https://cdn.sqhk.co/fivukidado/7jgjbfg/mefizetarasuken.pdfIn PDF document text
    • http://mufawajidoxe.22web.org/23299309061.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454163/normal_5ff9d13404caf.pdfIn PDF document text
    • http://xojuxegalixiluj.66ghz.com/infeccion_por_sonda_vesical.pdfIn PDF document text
    • http://likododolokopaj.iblogger.org/33438184689.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/wujixus/apple_airpods_use_with_android.pdfIn PDF document text
    • http://rapuzivawa.epizy.com/gratitude_list_template.pdfIn PDF document text
    • http://mafasegu.epizy.com/37565650517.pdfIn PDF document text
    • http://lesiterifok.epizy.com/badmash_number_1_dj_song.pdfIn PDF document text
    • http://jamosafiseb.rf.gd/bella_ciao_music_original.pdfIn PDF document text
    • http://kuzebelinebofe.epizy.com/tourism_holdings_limited_annual_report_2017.pdfIn PDF document text
    • http://gekavitominugi.epizy.com/42961889207.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/sidebax.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/antenna_channels_guide.pdfIn PDF document text
    • http://wudafozejuniv.rf.gd/guide_installation_livebox_play_adsl.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_off0000d55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55B 5060 bytes
SHA-256: 7d3c46b8b4ce86eb8d823ee70da0fc01ea1cf35d96f1cbf3b8fd0ae05af03aff
font_01_sfnt_off0000e68e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68E 10156 bytes
SHA-256: cb3fa978e9075e9571ee8676d255b741447006ee2ec18a5e980b00bda291cf83