Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccccdb4333b00627…

MALICIOUS

PDF

79.4 KB Created: 2021-02-19 01:02:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 02a6d694d55a066dc96ae13a79b5d35e SHA-1: e56768ba1b308f859549f0bbe2754088849b6cbc SHA-256: ccccdb4333b00627978aba140cf8a8b0262021e0d732f5edf4b2d99393c353f2
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://jacksth.ru/wix?keyword=pdf+printing+blank+on+mac PDF link annotation
    • http://vadinesejel.22web.org/23160080395.pdfIn PDF document text
    • https://cdn.sqhk.co/bisozowinala/fx4b8hd/radiant_cut_diamond.pdfIn PDF document text
    • https://cdn.sqhk.co/juzexokogim/jbxxhwm/jimikifab.pdfIn PDF document text
    • https://cdn.sqhk.co/somepizeko/fhbgfCa/free_offline_pc_games_list.pdfIn PDF document text
    • http://jabisoj.22web.org/weber_spirit_e-215_2-burner_propane_gas_bbq.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/LhiBfha/xilibaroxomirazowifi.pdfIn PDF document text
    • https://nadarikiwuxat.weebly.com/uploads/1/3/2/7/132712530/8310412.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/1gHVzUU/rosopoxeduvuvogadorivi.pdfIn PDF document text
    • https://xirovule.weebly.com/uploads/1/3/4/7/134749068/namojekizis.pdfIn PDF document text
    • https://zoxexalibefan.weebly.com/uploads/1/3/0/9/130969973/vurimabo-tavadubilu-sazonuwomigad-xujasutufivu.pdfIn PDF document text
    • http://dozawudefe.iblogger.org/little_drummer_boy_sheet_music_for_drums.pdfIn PDF document text
    • https://vibusipapomokij.weebly.com/uploads/1/3/2/6/132682711/4340495.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kozafulide.rf.gd/64781149906.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/conan_the_barbarian_movie_300mb.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/52115220259.pdfIn PDF document text
    • http://jufofokisib.epizy.com/androidx_lifecycle_maven.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/sclc_treatment_guideline.pdfIn PDF document text
    • http://pimibini.epizy.com/76989188993.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_off0000fadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADF 5500 bytes
SHA-256: a23b1e5003476dd639c194a9de988575908b2901a556011d466a4ed13d1dbf10
font_01_sfnt_off00010d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D85 10276 bytes
SHA-256: 5fdfefcf6e5804ce64d79bdbee04538e466539a0c593740c70c03b3d19967901