Malicious PDF — malware analysis report

Static analysis result for SHA-256 70533db3092aad37…

MALICIOUS

PDF

69.0 KB Created: 2021-02-08 21:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b7d34c7d045f0dfbcfe4ea3d5b909037 SHA-1: b73a369e3d4267bdc2957c65e2b0afdf37fc9d6d SHA-256: 70533db3092aad376ebc4c4bea7642e426df9fd3dcd85d9d6334ada8e2b34eac
166 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://bologen.ru/wb?keyword=factory%20reset%20apk%20without%20root PDF link annotation
    • http://copyrightsafetyhelps.com/never_have_i_ever_season_2_casta5h3p.pdfIn PDF document text
    • http://hookup673.site/que_es_aneuploidiaqrrqz.pdfIn PDF document text
    • https://togazozaxezux.weebly.com/uploads/1/3/1/6/131606461/5462410.pdfIn PDF document text
    • http://fbcopyright-center.com/naming_of_coordination_compounds_worksheet31zjz.pdfIn PDF document text
    • http://zipogagu.iblogger.org/chsp_transport_guidelines.pdfIn PDF document text
    • http://topstop.site/kusiwuwenadubugakcpx9p.pdfIn PDF document text
    • http://nesobaka9.xyz/82907869135hxdsp.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/principles_of_biodiversity_conservation.pdfIn PDF document text
    • http://center-san.ru/statistical_quality_control_toolskcffh.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/ajdidii/thai_alphabet_writing_worksheets.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ledolabufimo.epizy.com/26459608876.pdfIn PDF document text
    • http://gevitejivojo.rf.gd/calligraphy_fonts_for_ms_word.pdfIn PDF document text
    • http://dusiwesidixe.epizy.com/polunijejodituge.pdfIn PDF document text
    • http://kotasogova.rf.gd/ferimevojavason.pdfIn PDF document text
    • http://migusopugaj.epizy.com/polarity_chemistry.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_off0000d0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0CB 5200 bytes
SHA-256: 51d87169e91e2e0acb0d8f8d48a3687a1bf2c899492daa37eb2b1daf8ad4b936
font_01_sfnt_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 10768 bytes
SHA-256: c18dd8181566fa923b35e2c9fb1408de904874e54c4a89e10e34c0e814661046