Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed90f381099cf31…

MALICIOUS

PDF

72.3 KB Created: 2021-03-02 13:16:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 30bce2e88a76196efc80029a16c1d445 SHA-1: f918ecb61baf004b2b235042b966d4725a388942 SHA-256: 6ed90f381099cf31ada3d70beb712e50937dbb31069d28247f85f2e10a06ec59
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/award?keyword=matched+ally+condie+series PDF link annotation
    • http://srakan.space/2397589107043ncx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482863/normal_5fe1920d8d08f.pdfIn PDF document text
    • http://kemytbok.xyz/chivalry_is_dead_acoustictnkdf.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/cvrIsR5/18025956120.pdfIn PDF document text
    • http://juvovagesubo.mywebcommunity.org/what_is_the_best_books_for_computer_science.pdfIn PDF document text
    • https://cdn.sqhk.co/filodomazora/Rih7mhe/spirit_airlines_baggage_fees_for_international_flights.pdfIn PDF document text
    • http://vas-rem.ru/12_days_of_christmas_lyrics_meaningoiwjl.pdfIn PDF document text
    • http://luminar3-download.xyz/zuvenomoton3wo8r.pdfIn PDF document text
    • http://price-list.moscow/kisagakasekolomixokeboy9so8.pdfIn PDF document text
    • http://shoop-fm.ru/73349557295bkuse.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/704000234093ydux.pdfIn PDF document text
    • http://muldwych.com/bienestar_emocional_y_social62spw.pdfIn PDF document text
    • http://sidufapas.mywebcommunity.org/19937934477.pdfIn PDF document text
    • http://cybety.xyz/attack_on_titan_game_2020khay3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jozobudesurarab.onlinewebshop.net/4959825332.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/2012_gmc_acadia_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/sheet_street_job.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_off0000e012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE012 5136 bytes
SHA-256: 13fd2b4735fd06775a14eff7878291e83645f747ba57f27ea086f350199dd8e4
font_01_sfnt_off0000f191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF191 10224 bytes
SHA-256: e4e55dad62c8f337c9be19f313010361f4a24c9db50b7fc9bc57c8bfedc300fc