Malicious PDF — malware analysis report

Static analysis result for SHA-256 55b3c1197faa5f9e…

MALICIOUS

PDF

72.8 KB Created: 2021-02-18 00:06:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d8906d78c1a269ea39d73492398b6ee4 SHA-1: ff58b84373239e08dbf35c9325cf781093dc58ee SHA-256: 55b3c1197faa5f9e5da56583a77ac64427af26459da22e10c38c2bdb87cef6ff
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/wix?keyword=twitchcon+2020+ticket+price PDF link annotation
    • http://pornbustyvids.com/score_hero_hack_apk_pc9qzzv.pdfIn PDF document text
    • http://tersq.fun/beano_comic_libraryzpygt.pdfIn PDF document text
    • http://giveaway2020.info/pizufolegolibiwexufalafehuj0i.pdfIn PDF document text
    • http://mozakotefeg.22web.org/fanitorejelovu.pdfIn PDF document text
    • https://monemoret.weebly.com/uploads/1/3/4/6/134667898/karimuriz.pdfIn PDF document text
    • http://otshelnik.net/el_moasser_science_prep_3w4ysg.pdfIn PDF document text
    • https://wovegusokab.weebly.com/uploads/1/3/4/8/134850220/1208857.pdfIn PDF document text
    • https://surugodinatuv.weebly.com/uploads/1/3/4/8/134861851/putevofar.pdfIn PDF document text
    • http://alisabor.design/cartoon_network_games_free_for_androidmn73e.pdfIn PDF document text
    • https://riwurarelix.weebly.com/uploads/1/3/4/4/134484082/9078814d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vagaloxesawazo.rf.gd/tozibetufizuxe.pdfIn PDF document text
    • http://faxunarin.epizy.com/secret_garden_dreamcatcher_piano_sheet_music.pdfIn PDF document text
    • http://genolesatoj.epizy.com/how_to_pronounce_entrepreneurship_pronunciationmanual.pdfIn PDF document text
    • http://lifugefumiwikoz.epizy.com/makip.pdfIn PDF document text
    • http://viganoxoloni.rf.gd/89602741115.pdfIn PDF document text
    • http://xosareregaka.epizy.com/4545287798.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_off0000e10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10B 4980 bytes
SHA-256: 9a75ac43882ed157fb1c3c56354c8b671ea5aa5986bdbe97a7ded075b372ff76
font_01_sfnt_off0000f218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF218 10648 bytes
SHA-256: d3b2344a5e558de4dae5d8730682925d8d06fe2d7d01f72823231d093f709a60