Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e73d0c8b70c9b0…

MALICIOUS

PDF

68.0 KB Created: 2021-02-13 20:16:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8798c55dffee52057eb10ebbb64cc09e SHA-1: 58c203c0167b827c91e57b77684b2408e3ef421e SHA-256: 32e73d0c8b70c9b0a2055d085e5720216758154fd4c918bf562e9ba8f903216d
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://seumenha.ru/wix?keyword=teacup+chihuahua+rescue+arizona PDF link annotation
    • http://itravelgr.com/anxit_de_performance_livreecpg8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405195/normal_5fcd3709bf470.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415544/normal_6023d9d1a8696.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393641/normal_6022c3570f883.pdfIn PDF document text
    • http://design-kvartira.info/countries_involved_in_ww2_94_answersfrnmt.pdfIn PDF document text
    • http://gnfcns.info/absolute_advantage_theoryxu1qz.pdfIn PDF document text
    • http://health2health.online/similarities_between_samurais_and_knightsvtlw9.pdfIn PDF document text
    • https://kokarino.weebly.com/uploads/1/3/5/2/135299240/januniwekubarejijew.pdfIn PDF document text
    • http://maxist.ru/anaglyph_3d_hollywood_moviesr6uyv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464523/normal_5fd6d9e9a4aee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_60248f4fc9f91.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/path_of_exile_trade_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/avatar_3d_movie_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/50428614840.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1C0 4788 bytes
SHA-256: 582f6572b5edc950bae5ce5dff00b9a2d78cf1d3c9bee2ec6ba542eaadaf7b73
font_01_sfnt_off0000d1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F6 10296 bytes
SHA-256: 005f08a452706f04e6a1dac80b41c0b36a83c0ce0dc081430ce4276d9ceab099
font_02_sfnt_off0000f53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF53C 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2