Malicious PDF — malware analysis report

Static analysis result for SHA-256 665dcc124de7079b…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 22:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: baf7713b9f714f8e6b6d2e75436f7761 SHA-1: bde944aea6c39c2736a7aefdcdef460414c4066e SHA-256: 665dcc124de7079beb22e7d25b46fdfa75eddd9f881610767618ea61736f1eff
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=comedy+movie+trivia+questions+and+answers PDF link annotation
    • http://runivofo.iblogger.org/drunvalo_melchizedek_flower_of_life_volume_3.pdfIn PDF document text
    • http://sellforce.ru/perfect_soccer_physique5lm4s.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/sasufisijibeju.pdfIn PDF document text
    • https://wazaxilam.weebly.com/uploads/1/3/4/7/134726650/ziwivalaxizosifa.pdfIn PDF document text
    • http://dazolovegom.mygamesonline.org/how_to_buy_home_insurance_canada.pdfIn PDF document text
    • http://insurancesouk.com/velas_japonesas_libromkjaz.pdfIn PDF document text
    • https://zazobowelukoki.weebly.com/uploads/1/3/0/9/130969428/5251335.pdfIn PDF document text
    • http://profapp.pro/siwemigoribenebuo46xv.pdfIn PDF document text
    • https://gafekiwukuwemul.weebly.com/uploads/1/3/4/3/134313713/sokadimejof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451565/normal_5fd99e3a5d718.pdfIn PDF document text
    • http://english-10.site/paul_dawkins_notes_differential_calculusx19k7.pdfIn PDF document text
    • https://fewanisip.weebly.com/uploads/1/3/2/7/132712603/daloruta_vobewerazeturad_xejusiwezaxud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463792/normal_5fec40f696d03.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/lupebesu/kiswire_co_ltd_annual_report.pdfIn PDF document text
    • http://rasunafosav.epizy.com/verore.pdfIn PDF document text
    • http://vasiruduwoju.epizy.com/how_to_write_on_a_wacom_tablet.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/43076555391.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/what_does_direct_development_mean_in_science.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/zolopitasugawedafu.pdfIn PDF document text
    • http://robabunegulawi.rf.gd/bitlocker_for_windows_7_64_bit.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_off0000d927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD927 5224 bytes
SHA-256: 82d87bb60451c88bce2aa80d6c5ef62fd115c9bc82dc021c32e8cbbcddab99c1
font_01_sfnt_off0000eae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE5 10276 bytes
SHA-256: 99a58c72915d43411f5b28bddc9332a5ff43b6888a65b85006f31d21c7c071af