Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a92ed81d40f1d97…

MALICIOUS

PDF

69.2 KB Created: 2021-02-28 12:18:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f34e71237ce778dad90481ea9920f470 SHA-1: c2f529b2d17f893f78c8fb8992b9c1dab52edf9a SHA-256: 6a92ed81d40f1d97e5dc99554236a6aef0fcb8114f2b224f221f1822e56f634e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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.
  • 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/wix?keyword=ok+google+hotmail+%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%25B3%25E3%2582%25A4%25E3%2583%25B3 PDF link annotation
    • http://mevukavotidu.getenjoyment.net/area_and_perimeter_worksheets_grade_5.pdfIn PDF document text
    • http://vorecan.fun/stock_market_closing_time_day_after_thanksgivingequfz.pdfIn PDF document text
    • http://c-advance.space/sipoc_templates_excelabvzk.pdfIn PDF document text
    • http://dutov.org/one_punch_man_road_to_hero_adventure_guidetpvra.pdfIn PDF document text
    • http://wasareni.22web.org/43363122459.pdfIn PDF document text
    • https://sufifova.weebly.com/uploads/1/3/4/7/134736026/6196472.pdfIn PDF document text
    • https://ginuzakonufa.weebly.com/uploads/1/3/2/6/132681862/tamakij_dumugo_jewekelemirupeb.pdfIn PDF document text
    • http://natnat.fun/sprouts_wild_rice_blend_cooking_instructionsfj8k3.pdfIn PDF document text
    • http://boxberry-24.cc/ruwexufisakazaxakai52bo.pdfIn PDF document text
    • https://mapogukokerezat.weebly.com/uploads/1/3/5/9/135987870/mitojudeb_mifipixolaxezo.pdfIn PDF document text
    • https://wugedelujexot.weebly.com/uploads/1/3/1/4/131456191/3024118.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizedugenok.epizy.com/80492995298.pdfIn PDF document text
    • http://suwulinivez.rf.gd/13967183075.pdfIn PDF document text
    • http://gixiluvigatekij.atwebpages.com/how_much_money_do_criminal_lawyers_make_uk.pdfIn PDF document text
    • http://bowukedogatowo.epizy.com/55983283651.pdfIn PDF document text
    • http://pugobafujopelat.epizy.com/74237076401.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/33633940005.pdfIn PDF document text
    • http://zonafikepejese.onlinewebshop.net/job_responsibilities_of_office_manager.pdfIn PDF document text
    • http://xewujurobozum.rf.gd/husqvarna_450_chainsaw_chain_oiler_adjustment.pdfIn PDF document text
    • http://rivenoke.onlinewebshop.net/they_poured_fire_on_us_from_the_sky_quotes_with_page_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/gutuzusodexegexomijigowi.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/cardboard_sheets_bunnings.pdfIn PDF document text
    • http://regisebe.epizy.com/gukujegozud.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC509 3284 bytes
SHA-256: e6ad29e466950a41553afc1b5ca5ed613516e0354164e971748be2805a794ff5
font_01_sfnt_off0000d0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B8 4916 bytes
SHA-256: fa49e5f25430b35ab66db0f0cf759c020e8246d125c99d92948730c0f7c1c1f9
font_02_sfnt_off0000e14f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14F 10576 bytes
SHA-256: c2a76b8b959ee133dc40b8cf20e30922c48f5f00fef6b11731b43f226f3af302