Malicious PDF — malware analysis report

Static analysis result for SHA-256 54f849f4e321f4b2…

MALICIOUS

PDF

63.2 KB Created: 2021-02-12 03:32:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0e7faea26f97d7300845a683f44e98ea SHA-1: 9b7510b653811db4aadac629a1402bdb2bbe5d9e SHA-256: 54f849f4e321f4b25655af0afcfb30f5944f5789b1edbdb1731637b2153a4ad2
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wb?keyword=music%20video%20%20sites%20hd PDF link annotation
    • http://esmoney.site/nivolekuwogor8qw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451742/normal_5feea774348a0.pdfIn PDF document text
    • http://shoppingyxplus.xyz/ielts_reading_passage_the_eisriesenwelt_ice_caves_answersgx8rm.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxolusufa/dyOKGXL/zombie_hunting_simulator_codes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443576/normal_60240e50d5e08.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488581/normal_5feff3b371de5.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/e7l7ja2/47251352717.pdfIn PDF document text
    • http://3gusevshop.space/barbershop_2004_castr6x96.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuluni/ihsXhds/equalizer_definition_synonyms_and_antonyms_of_laconic.pdfIn PDF document text
    • http://olymp-trade.top/download_ultimate_offroad_simulator_mod_apkr5wcg.pdfIn PDF document text
    • http://idealicaitaly.site/790811152590pyuv.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/pasawexawinogad/behaviourist_theory_of_learning_in_education.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/vesotezuf.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/13992275095.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/adaptive_control_processes.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/isaimini_telugu_dubbed_tamil_movies_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/battle_chasers_nightwar_character_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/7991238205.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_off0000bec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEC4 4752 bytes
SHA-256: 4fd2fe0c701a8777885f8ba8ca2300e620a4dea454d96e404739a597678a9d9f
font_01_sfnt_off0000cf02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF02 9640 bytes
SHA-256: cb4e2afa1db5b0426250b08544e29d183941d786d8a9f2f2c0a0c52255c2d857