Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f568d6dbce809f…

MALICIOUS

PDF

73.1 KB Created: 2021-03-11 12:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ec7edd1ea715e55788338b89f7ca9408 SHA-1: 07ff511e796c26173ed7c4a6cfb9556c8a50facc SHA-256: 16f568d6dbce809fda7b2026257e33e91d37a7abe607235f15b8a80ae4415fb6
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/award?keyword=parts+of+centrifugal+pump+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366055/normal_6026174f47ff1.pdfIn PDF document text
    • https://cdn.sqhk.co/jinokazif/cgihiVT/ultimate_car_driving_simulator_hacked_version_free_download.pdfIn PDF document text
    • https://waferipesor.weebly.com/uploads/1/3/5/3/135307907/6683655.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/bt9jLic/zevinepemel.pdfIn PDF document text
    • https://wokonupojelofa.weebly.com/uploads/1/3/5/3/135351156/jijenunitisosaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451567/normal_601cb6d6d7d7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488130/normal_603bebac20af1.pdfIn PDF document text
    • https://cdn.sqhk.co/jixavome/Jr5ieE0/74139056860.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/duPEwyH/predator_160_fishing_boat_for_sale.pdfIn PDF document text
    • https://zudezujom.weebly.com/uploads/1/3/1/3/131384555/tulexipuzomima_zezikagobiguva_berojabenut_bagaw.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/fMihgjH/jogabubokolibawifojuzas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386336/normal_5ffb4b0b24c14.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/renuwelitutopik.pdfIn PDF document text
    • https://judewefa.weebly.com/uploads/1/3/4/6/134652715/wanime_mesopuven.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vusomon.epizy.com/lujavovedozumosuxunif.pdfIn PDF document text
    • http://jipudovisubu.rf.gd/10947086211.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f64516f-6dff-4bdd-aebb-2b4113de088a/midland_gxt1000vp4_review.pdfIn PDF document text
    • http://ligasivixa.epizy.com/36040179274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6eec43c-bf2f-4e77-8e7e-29b3296c6787/the_100_book_and_tv_show_differences.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b18526cf-759a-4734-b228-7c9dd6d91649/crossfit_workout_barbell.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f255f899-5898-4223-bdea-49e27c511fa7/ks_tarot_classic_rider_waite_78_cards_and_the_book_of_mysteries.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_off0000e34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34A 5476 bytes
SHA-256: a6d5b75a4ada50b577c678f9c496f79a71d294a6b2eb42d8d43bbc2f6670d978
font_01_sfnt_off0000f5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D8 9812 bytes
SHA-256: 24a1e983b4acc5ae043f3e4d4d1138654aeac3bf0e755f3cd41cdaed363f363d

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