Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d1ce473b22813a9…

MALICIOUS

PDF

70.2 KB Created: 2021-02-17 18:07:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5f9bbb83cbcaa6973d89a87e25e8d1b0 SHA-1: 52abe8e6b9282464af907b2c9c460155417ceacb SHA-256: 0d1ce473b22813a962f7b8b8f962d883ae0e78840a6bda904ac40817c93dceda
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://jottigo.ru/wix?keyword=damage+health+poison+ix+gradual+ravage+health PDF link annotation
    • https://zixaxufomomofir.weebly.com/uploads/1/3/0/7/130738537/3618029.pdfIn PDF document text
    • https://cdn.sqhk.co/wosipuvetot/GGhbGwh/tobofagavizipuzudidub.pdfIn PDF document text
    • https://zirakamu.weebly.com/uploads/1/3/1/3/131398357/lodajixixe_wivobimoliz_nepuxewegefipa.pdfIn PDF document text
    • https://cdn.sqhk.co/milibotobov/giiagjk/world_cup_match_heroes_live.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/ahfPPgc/hungry_shark_evolution_game_guardian.pdfIn PDF document text
    • https://temabodanifow.weebly.com/uploads/1/3/1/4/131454916/5950402.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxomawelej/Chaeiju/badtrip_in_english.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxumisi/9ghjfMt/anime_pose_3d_pro_apk.pdfIn PDF document text
    • https://vabomunebalobi.weebly.com/uploads/1/3/1/8/131856010/981808.pdfIn PDF document text
    • https://purabadixubemik.weebly.com/uploads/1/3/5/3/135399060/jifejunivuzesutum.pdfIn PDF document text
    • https://gotukedefiwukub.weebly.com/uploads/1/3/5/3/135309477/waxipemuxitagi_mepofaxiwewefat_rularaborovuwar_motedavu.pdfIn PDF document text
    • https://cdn.sqhk.co/pamavunawi/yKijTOG/hero_tycoon_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/Osijyja/rovuzesewunalibevowor.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/dowavelaxam/kuguzejomuwidovuto.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/83333913343.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/meningite_bacteriana_na_infancia.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/5394162073.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_off0000d64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64F 5500 bytes
SHA-256: 60b1d0f1c9e8af168fbe8d3b296a46d14f1e444f909b28da2b5464e8f99a30e5
font_01_sfnt_off0000e8ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8EA 10004 bytes
SHA-256: 5aea29ba10ba68769a6672dcd11d3d92c41c8e3ec2602bc79e944f78a8deb256

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