Malicious PDF — malware analysis report

Static analysis result for SHA-256 258f5604eb5f4405…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 15:36:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8888d9d20c7e596f3557c95cef046805 SHA-1: aff0e46ee8b15d4efcae7d55117c271a19bc6577 SHA-256: 258f5604eb5f4405c69df1a089add9f58db120bd3723ace598175aee79d5159b
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://bologen.ru/wix?keyword=sanam+teri+kasam+song+download+bestwap PDF link annotation
    • https://gamevuwi.weebly.com/uploads/1/3/4/5/134525912/viridaterezudigiden.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/dghhgij/fight_up_io_game.pdfIn PDF document text
    • https://dujomimip.weebly.com/uploads/1/3/6/0/136086420/48c0e01c.pdfIn PDF document text
    • https://bimomudunaxa.weebly.com/uploads/1/3/4/7/134757379/74d85dba457.pdfIn PDF document text
    • https://budorezaru.weebly.com/uploads/1/3/4/8/134859022/lugaxenanezuteki.pdfIn PDF document text
    • https://kexanitafax.weebly.com/uploads/1/3/0/8/130813084/576870.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445532/normal_5fde09d64139d.pdfIn PDF document text
    • https://pegufozexak.weebly.com/uploads/1/3/5/3/135317465/rugolimegozedisaru.pdfIn PDF document text
    • https://femovoba.weebly.com/uploads/1/3/0/7/130775826/d2f0f597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484355/normal_5ffcda3e38215.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374852/normal_5ffa4ff6527d2.pdfIn PDF document text
    • https://badosajag.weebly.com/uploads/1/3/1/4/131407507/9626737.pdfIn PDF document text
    • https://jokenobijejadur.weebly.com/uploads/1/3/0/8/130873794/kozal_rodati_siravepo.pdfIn PDF document text
    • https://fexagire.weebly.com/uploads/1/3/0/7/130775556/lifigoneniwopodexap.pdfIn PDF document text
    • https://gilitizek.weebly.com/uploads/1/3/4/1/134131368/guzopukezakom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/email_formal_en_ingles_para_presentarse.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/avengers_age_of_ultron_trailer_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/kajunizaxetavu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC743 5676 bytes
SHA-256: 3f4c4760ad17d395ddd2c64d2b122d4ec9a27e8a689229f3bbdb620f8ac92a57
font_01_sfnt_off0000da85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA85 10140 bytes
SHA-256: e3e1e468be3f167eae82cc3d9c07e4840400dd742a47f4f9a584784d124ea836
font_02_sfnt_off0000fd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD40 16096 bytes
SHA-256: 9853a4a918762215dfcba51349555ff48d39e56332efe18e2f333ca30d8a5b61

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