Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6baa07e7d7428e…

MALICIOUS

PDF

75.2 KB Created: 2021-03-04 19:09:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7f8307289d0e05c1d46d34f5918a4fd5 SHA-1: 9a5cc709fab6a5cf799ff4a8b9f9919244a259f1 SHA-256: 6b6baa07e7d7428eb50a0b7c7fc962463572f34ca284a20952e6b43943d2d702
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains embedded URLs that lead to suspicious domains, suggesting it is used for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection by security tools point towards a malicious document designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/strik?utm_term=one+thousand+and+one+nights+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/lomasamube/idie4gi/budiruda.pdfIn PDF document text
    • http://trokot-roznica.xyz/zaxujofozovivowoz5v4ha.pdfIn PDF document text
    • https://cdn.sqhk.co/dadirowuj/hgEqjb7/dragon_hills_2_hack_mod_apk.pdfIn PDF document text
    • http://remontlegko.info/gixunatarusekejojpiyjf.pdfIn PDF document text
    • https://cdn.sqhk.co/fidapulano/jfjaPgh/trendy_deadpool_stickers_wastickerapps_download.pdfIn PDF document text
    • http://copriyghtconfirmed.com/what_is_fit_for_life_diet_plan88jal.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/TThfZij/dinosaur_battle_world_championship_season_3.pdfIn PDF document text
    • https://cdn.sqhk.co/rufomezin/bhVZZBn/playmemories_home_sony_download_deutsch_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xidujefonari/VjgB5IE/32033099009.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/yUM7ifJ/35226927566.pdfIn PDF document text
    • https://cdn.sqhk.co/neseleko/aWhgo14/rizowizopozojora.pdfIn PDF document text
    • https://cdn.sqhk.co/liripudeb/rhioPje/dokij.pdfIn PDF document text
    • http://helplnstagramcontact6088756.com/hnbgu_b._ed_exam_form_onlinezh1ib.pdfIn PDF document text
    • http://itchia.space/venokelagutobogol9g0z.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/hgLhaie/my_talking_pet_horse_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/hdgjggi/kutopugomixifuvijezemuk.pdfIn PDF document text
    • https://cdn.sqhk.co/bemaxopig/eBZpB0N/old_video_games_ringtones.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/45eb20ef-ba29-4053-a111-1f4acb0734e6/repakedamuzoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e23e5e6f-af18-4750-b3f9-f9d8064fa33f/beginner_piano_books_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/638be827-b662-420a-884b-c6af5ea99eb8/twilight_2013_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23df7331-ae72-4e3e-b973-b870f663fdf2/double_dapple_piebald_dachshund_for_sale.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_off0000e7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F2 5424 bytes
SHA-256: c36de5c72272597d40e76123f7d71cda9ca233f2bfd678a94bbf6b8e0f0039ae
font_01_sfnt_off0000fa71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA71 10808 bytes
SHA-256: 579837b5c66a06d9d73aca0898b8e032cfb1652dc35fe9e074e85f5892db6f11