Malicious PDF — malware analysis report

Static analysis result for SHA-256 02445be2ea00e655…

MALICIOUS

PDF

76.5 KB Created: 2021-02-27 06:06:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3994f3f9dee3b8eea7fc8f5cdfb641bf SHA-1: 3dd3618af5bf91d0e53867d082bcb28088a48f36 SHA-256: 02445be2ea00e65528267ac0e84f6140718b7338fcc09de60314bbf78794e493
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/award?keyword=mortal+engines+book+age+rating PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393514/normal_5fe8b4db36be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466673/normal_5fda238996680.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375209/normal_6016ea973cd34.pdfIn PDF document text
    • https://cdn.sqhk.co/pejasibupap/gfEgdhc/king_of_thrones_synopsis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384470/normal_6023c6a411d3e.pdfIn PDF document text
    • https://cdn.sqhk.co/xilasexiki/G3giJig/3d_game_maker_software_for_pc_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444852/normal_5fddbd8d4cf5c.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/lhhig5a/zugenovusijarogirukodow.pdfIn PDF document text
    • https://vizegibog.weebly.com/uploads/1/3/4/4/134458583/3695881.pdfIn PDF document text
    • https://lilafigofuku.weebly.com/uploads/1/3/1/3/131398347/2599239.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5ff4102edc92d.pdfIn PDF document text
    • http://vugijow.iblogger.org/60231408932.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/gNlwhih/2020_fantasy_football_rankings_standard_espn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nuxibuzejapise.epizy.com/how_to_download_music_in_iphone_for_free_2019.pdfIn PDF document text
    • http://joluror.rf.gd/adverb_worksheets_4th_grade_with_answers.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_off0000f067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF067 5060 bytes
SHA-256: efacd85d841e869433ca75627994fb7ab10e45a7056740d94fbb76f82fb8e892
font_01_sfnt_off000101b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B9 10368 bytes
SHA-256: ed852d556b2ea3e69cb5728bf1871960949a86317ae99263723009a4ba652924