Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5bc728ec2b0f8e3…

MALICIOUS

PDF

72.4 KB Created: 2021-02-20 13:20:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: af0bdfaf248e359577ec25dcb0752496 SHA-1: c102668346a9a40762f887a089789caab9e6f443 SHA-256: e5bc728ec2b0f8e34454613ced91073b620a04024e98fd41d0196a0857cca0ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=apk+whatsapp+iphone PDF link annotation
    • https://cdn.sqhk.co/rufosopufu/4jgJhb6/raxanukogasogorefitapizo.pdfIn PDF document text
    • https://cdn.sqhk.co/labojime/f8hcua9/bacon_escape_2_level_7.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/jazghmo/hitmasters_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451556/normal_5ff4429d5d006.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxofidipo/ib1haQK/22985151622.pdfIn PDF document text
    • https://cdn.sqhk.co/takodabu/cygfgdO/cure_the_incurable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415543/normal_6017db305d950.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bapexuzajo.epizy.com/dipagejaxeragufu.pdfIn PDF document text
    • http://vatikob.epizy.com/utilitarianism_book.pdfIn PDF document text
    • http://kipixuge.epizy.com/depito.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/gafixale.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/pulozesuxes.pdfIn PDF document text
    • http://jizizubusede.epizy.com/are_samsung_laundry_machines_good.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/32634297978.pdfIn PDF document text
    • http://rulakilelakeze.epizy.com/facts_about_mercury_worksheet.pdfIn PDF document text
    • http://bozivexaterem.epizy.com/34010333484.pdfIn PDF document text
    • http://bavizajo.epizy.com/sda_hymnal_lyrics.pdfIn PDF document text
    • http://samanoniminowut.epizy.com/91299292583.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/32139969540.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_off0000e00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00C 4924 bytes
SHA-256: e24eb2bbb08422bc475c23c2d6e2b0a5c6d4cfbe8878627febd7a752ed24892e
font_01_sfnt_off0000f0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DF 10488 bytes
SHA-256: dc1f1be14a8b15e82b951b825e78884a4f534d52a7378c19f4ab0dabb84aad7b