Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5572b47d62c6143…

MALICIOUS

PDF

69.8 KB Created: 2021-02-20 02:39:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f87b71187ccf6a373f929ba6a6011d22 SHA-1: 9f93d611c49b8567547d017d6255cca85986bf74 SHA-256: a5572b47d62c6143a682cbecc240678a762e48306a1f8fdb99edb590050c4132
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://leonvi.ru/wix?keyword=atlantis+dubai+promo+code+2020 PDF link annotation
    • https://cdn.sqhk.co/pujazojiwixi/fEsKB6k/battle_angel_alita_last_order_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/wSHgbjj/zombie_defense_mod_apk_12._6._27.pdfIn PDF document text
    • https://lazofakivew.weebly.com/uploads/1/3/1/4/131406449/6617164.pdfIn PDF document text
    • https://vigenuwotefi.weebly.com/uploads/1/3/4/0/134012497/f02ed570b.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/jchgehd/mhw_sword_and_shield_guide_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393889/normal_5fcd79d98e8b8.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/Piaiilw/jetojonosijije.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451377/normal_5fcae9816f802.pdfIn PDF document text
    • http://mandarins.space/75370807515d8fay.pdfIn PDF document text
    • http://jilet2.club/fibiwebesonufijeze7y53i.pdfIn PDF document text
    • http://hookup671.site/98777602178ue6en.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/jhhVQwK/d-_day_movie_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzabajixiw/jbihYgc/stacksocial_six_sigma.pdfIn PDF document text
    • https://zodekunomaxuj.weebly.com/uploads/1/3/0/7/130739112/betonazidefe.pdfIn PDF document text
    • https://cdn.sqhk.co/mojazejo/RFhgibB/22616035114.pdfIn PDF document text
    • http://bighome.space/gazzoni_diritto_civile39ngd.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwuxa/idhddjj/fivestars_topup_recharge_promo.pdfIn PDF document text
    • http://feelslike35.com/moultrie_trail_camera_setupm7q6h.pdfIn PDF document text
    • http://miiliioner.xyz/dugogelugapqyghl.pdfIn PDF document text
    • http://auto-fishing-rods1.club/2991068914o5ux6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31F 5620 bytes
SHA-256: 5c9a092ad4220cedb7f2809ef1be82cf38bba93737ab1ffa6a45e0772d08fc38
font_01_sfnt_off0000e61c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61C 10588 bytes
SHA-256: 71f6d7eeae6c43f802540799d54d1fcd51b90e23025960ea8fbf7ea5b490c36a

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