Malicious PDF — malware analysis report

Static analysis result for SHA-256 c878a3fa33691e51…

MALICIOUS

PDF

70.7 KB Created: 2021-03-01 09:28:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c69e63c25779ed1ad5e28f0d1dd3cee2 SHA-1: 674da7a0fee7748919713bffe3f11eee43095536 SHA-256: c878a3fa33691e51c42f77e1eda10511f9b9dafc0d9b27a56325173cea45164c
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://baarspo.ru/award?keyword=garmin+vivosmart+3+replacement+band+australia PDF link annotation
    • http://afracheat1.xyz/samsung_dialer_apk_prol7nkz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463264/normal_6021cd8d9c7ce.pdfIn PDF document text
    • http://farozemirig.scienceontheweb.net/pet_sematary_book_ending_vs_movie.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/85063020250.pdfIn PDF document text
    • https://cdn.sqhk.co/kusonemap/ddIhjha/fayetteville_ar_catering.pdfIn PDF document text
    • http://xilenemivagola.mywebcommunity.org/formulario_pago_alquiler_sunat.pdfIn PDF document text
    • http://atlas-copco.su/saturated_fats_contain_double_bonds949i6.pdfIn PDF document text
    • http://bluebadge-support.com/lelagifewesulepogefuselt4pau.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496815/normal_6033cc208328a.pdfIn PDF document text
    • http://lizoguxumugef.mywebcommunity.org/defojen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479718/normal_6007453304e46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402247/normal_6009680938c04.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/kokesatodixon/jebiwetumibet.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/nibimugunivakonaza.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/uber_brand_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/how_to_read_dictionary_pronunciation_guide.pdfIn PDF document text
    • http://kewetanetoza.atwebpages.com/black_and_decker_string_trimmer_parts_diagram.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_off0000d5f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F5 5612 bytes
SHA-256: cc5c8839261828ee28dcf1a5b5fa8acfa675abf31d689983a11b233bbc11ef27
font_01_sfnt_off0000e8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F1 10704 bytes
SHA-256: 9468512c12e92d6171ae57700b32554a9bc2cd94b39f12a730da9b181b354b0d