Malicious PDF — malware analysis report

Static analysis result for SHA-256 a07ad11c317f280d…

MALICIOUS

PDF

70.6 KB Created: 2021-02-25 14:45:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6cb484d04342c80b337f5b70e85c59ce SHA-1: 281ef7a832d1dd8988061f91bfbe2d5e0b6647c4 SHA-256: a07ad11c317f280d8c5a9cf995fe903fe22661319bf59999355d549d6faca7e8
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://jottigo.ru/wix?keyword=chemthink+chemical+reactions+precipitate+lab+answers PDF link annotation
    • https://cdn.sqhk.co/fuvebopeweb/f34jhhj/celebrity_cruises_ships.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408707/normal_5fd3da61cfc10.pdfIn PDF document text
    • http://winoraama.space/61686809338z3jy6.pdfIn PDF document text
    • http://grampus-shop.com/nomelomevisupabavis0s7vb.pdfIn PDF document text
    • https://cdn.sqhk.co/tozegatopaxu/Ukgche3/24360535731.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/iez8jaD/formula_1_2018_game_pc_system_requirements.pdfIn PDF document text
    • http://salonlabs.xyz/538547290785vjtf.pdfIn PDF document text
    • https://cdn.sqhk.co/guwaloxipete/BoGW2id/tumblr_login_help.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464863/normal_603748db24f7d.pdfIn PDF document text
    • https://cdn.sqhk.co/mifigatira/az75iip/42470701880.pdfIn PDF document text
    • http://hook-up.fun/9234615964s4erl.pdfIn PDF document text
    • https://cdn.sqhk.co/wisulekekij/ififggC/trending_video_status_share_chat_telugu.pdfIn PDF document text
    • https://cdn.sqhk.co/guzoladip/gFilhic/es_file_manager_iphone_apk.pdfIn PDF document text
    • http://lidzadva.xyz/77063393243sjezo.pdfIn PDF document text
    • https://cdn.sqhk.co/givifevulo/ghgfjfV/imdb_top_movies_2018_and_2019_bollywood.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/jjQfhji/school_management_system_wordpress.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485800/normal_5fe1795c88641.pdfIn PDF document text
    • http://fujigukatujewu.medianewsonline.com/does_delta_sonic_do_inspections.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zevesijuduma.atwebpages.com/71128998182.pdfIn PDF document text
    • http://kosener.epizy.com/kizufurevivufege.pdfIn PDF document text
    • http://biranon.rf.gd/26620597005.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_off0000d60c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD60C 5376 bytes
SHA-256: 01f5103ead092815a18277bf0a793c193eda8873c9722513158cae73b26df5d9
font_01_sfnt_off0000e82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82D 10716 bytes
SHA-256: 21bff25aad7e87752ae16d345893ec3974c64f0355611a3b6f05f80ae513d2d6