Malicious PDF — malware analysis report

Static analysis result for SHA-256 27fb69c1a8f7ae8f…

MALICIOUS

PDF

70.9 KB Created: 2021-02-21 19:28:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a7924bfb6f7122eaaacdc5b1e775feee SHA-1: bdb539cdff7211135775fd5d74f57dc1d9ea26dd SHA-256: 27fb69c1a8f7ae8f08dd3bc24c0dc0d09b60044d2629a4702d9f22fd3ea14d91
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=ans+annual+meeting+2020 PDF link annotation
    • https://cdn.sqhk.co/nixivezez/aibggUm/hot_rod_lincoln_lyrics_asleep_at_the_wheel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366007/normal_5fe1a49f1100d.pdfIn PDF document text
    • https://cdn.sqhk.co/wukufazujuv/HshiU98/rususalabalumafun.pdfIn PDF document text
    • https://cdn.sqhk.co/xixewebirike/mHI5hbD/28255785363.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/hgfcOhd/merchant_services_phone_number.pdfIn PDF document text
    • http://tajoraf.22web.org/sites_to_pirated_books.pdfIn PDF document text
    • http://nat-fru.space/sony_vegas_pro_15_serial_numberitrhx.pdfIn PDF document text
    • http://wixiziz.iblogger.org/grammar_worksheets_possessive_adjectives.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sesugemedolaf.rf.gd/new_bollywood_movie_songs_bestwap.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/dulukilazekofixolaxun.pdfIn PDF document text
    • http://kazaxese.epizy.com/injustice_gods_among_us_mod_apk_ios.pdfIn PDF document text
    • http://sagalesokalu.epizy.com/compound_words_worksheets_for_1st_grade.pdfIn PDF document text
    • http://parubixus.rf.gd/avermedia_dvr_software_free.pdfIn PDF document text
    • http://nusilelopalal.epizy.com/korewup.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/app_store_on_school_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/wondershare_filmora_user_manual.pdfIn PDF document text
    • http://kelamivajaw.rf.gd/ln_android_9_cho_lg_v30.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_off0000d946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD946 5172 bytes
SHA-256: f9f64fb9bbc8a7fe5a33eaef3bdb941d88c35d91d2056e5465ac8227aa87d5f4
font_01_sfnt_off0000ead3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD3 10680 bytes
SHA-256: b3b5fa4438f2c2edfadd9e46a4935a4fd8d233c72901d51cee06a706eb3c2dd5