Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58524efc22e9153…

MALICIOUS

PDF

65.7 KB Created: 2021-02-03 05:43:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 25ad94270d5e7b6b20041423ed52702d SHA-1: 8baf9c2e547e53bcd70c7c861150b82806b976da SHA-256: d58524efc22e91533cb05376d61d277faf1e7a83d40e24246fb82f3fad790aa3
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://maypoin.ru/wb?keyword=draw%20ballot%20template%20free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4472788/normal_6001d60a8807b.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/hqA3K5K/renelutawenikalo.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/fjeHHhg/stickman_super_dragon_shadow_fight_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5fde0de7dea55.pdfIn PDF document text
    • http://wugafis.66ghz.com/gumovakelitokugirufe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484126/normal_5fcdde8eba8fc.pdfIn PDF document text
    • https://cdn.sqhk.co/semiwewedazi/Xawghel/deroxovozovaramunu.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/gdrggii/free_slot_machines_play_now.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nonavijewiw.epizy.com/free_song_hey_dj.pdfIn PDF document text
    • http://vuxotuketut.rf.gd/pojiwivugomako.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/jahle_bhajan_aarti.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/portal_hepatic_venous_malformation.pdfIn PDF document text
    • http://nolagevupuxuje.epizy.com/43126051351.pdfIn PDF document text
    • http://sizuzupapefapo.epizy.com/rivimem.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/gosuzunum.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_off0000c711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC711 5100 bytes
SHA-256: ab06a0b8205eb0d761744ddb7c0bc4293cb204a48b4f4f63b63232601e352266
font_01_sfnt_off0000d86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD86C 9840 bytes
SHA-256: aa05e090050dca296c0eb1884be4ef2ef31e4d37d4c16c4e1d4e022fdcea4488