Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d276185f2c34fe…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 11:40:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 20471c346216f7469024d816dcf56eb1 SHA-1: 20c1f5c84a6424b83b759c62d59772e2c24c2019 SHA-256: f6d276185f2c34fed0cedb6d17df562b2e8a7212073b9cbcad5063b3ffbe759c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=linear+inequalities+worksheet+answers PDF link annotation
    • http://tortomsk.ru/the_minpinshjipy.pdfIn PDF document text
    • http://pop-marketplace.ru/50359225148aiu3r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393628/normal_5ff417c6c5b91.pdfIn PDF document text
    • https://cdn.sqhk.co/nujorazaje/kiifYje/drift_away_uncle_kracker_piano.pdfIn PDF document text
    • http://relax35.ru/zorurarogadopukapuzezv8u6f.pdfIn PDF document text
    • http://koolmaxt.online/whistler_snow_report_opensnowshjmr.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/willhi_temperature_controller_instructions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368477/normal_6033e1448227c.pdfIn PDF document text
    • http://repair-monokoles.ru/boishakhi_mela_songp0wsz.pdfIn PDF document text
    • http://soldonlakewood.com/43688449656llsap.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/ghJjgB0/that_s_all_you_want_in_spanish.pdfIn PDF document text
    • http://my-favshoph.online/mary_did_you_know_sheet_music_with_chords38er7.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/bisazabe/53498051388.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/captain_tsubasa_dream_team_para_pc.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_off0000e329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE329 4996 bytes
SHA-256: 54a1ddf7690454601f53358b18b5147fd9b8acea675b296af7312c5074ef0b9e
font_01_sfnt_off0000f43d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43D 10600 bytes
SHA-256: c78912523e995d487024e367572d076bf40b123bd5a08a9543b48351c3bf9f1e