Malicious PDF — malware analysis report

Static analysis result for SHA-256 8febc49c927816e8…

MALICIOUS

PDF

78.5 KB Created: 2021-02-11 15:05:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: be503e65b1ec071bc85e14ed096f7f63 SHA-1: 10ec03c2886b350bd995bac57319ccc0d0fdbce5 SHA-256: 8febc49c927816e864e2a39b01cc251c6c3071888b4085d90b1e84eb880e74eb
96 Risk Score

Malware Insights

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

The file is a PDF containing obfuscated content and multiple embedded URLs, with a high ML classifier score and ClamAV detection indicating malicious intent. The presence of an external URI pointing to 'maypoin.ru' suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains keywords related to 'Android tv box', likely a lure to entice users to click the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/aws?utm_term=android+tv+box+magicsee+n5 PDF link annotation
    • https://cdn.sqhk.co/rosomugimo/fie05hd/gulaz.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/yhgKsjc/vurubem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388050/normal_5fc7120fd962a.pdfIn PDF document text
    • https://cdn.sqhk.co/mijajijem/hjjdYjf/victory_day_russia.pdfIn PDF document text
    • https://cdn.sqhk.co/nujoxodove/haqrhgj/assistant_for_android_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwifemi/0QSBgda/rodatezim.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolaseja/cLijjj0/daddy_long_legs_game_tips.pdfIn PDF document text
    • http://natlab.ru/972561857655xjms.pdfIn PDF document text
    • https://cdn.sqhk.co/banamasuvaj/ahdij6g/75020944657.pdfIn PDF document text
    • http://ig-socialmedia.xyz/anniyan_movie_bgm_freejw2n1.pdfIn PDF document text
    • https://cdn.sqhk.co/bogonelemid/exkQi2P/knights_templar_masonic_ritual.pdfIn PDF document text
    • https://cdn.sqhk.co/tosobulig/ih6gVgi/entry_level_business_analyst_resume_skills.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/grhcQje/ultimate_fall_guys_in_mcpe_map.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/Knjjvie/fish_places_in_liverpool_ny.pdfIn PDF document text
    • https://cdn.sqhk.co/fofotixoz/iejasif/fruit_carving_design_apple.pdfIn PDF document text
    • http://prizinsta.info/pocket_ledger_app4fok5.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/cIYjfha/fatal_raid_sea_invasion_apkpure.pdfIn PDF document text
    • http://myfavoritesun.xyz/puxazufrtumc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f6a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A5 5608 bytes
SHA-256: 2c94e58e56ad446571dbfd6573b6810dfc26f66fe33b0c476bcb1c74df866b3c
font_01_sfnt_off000109b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B6 10296 bytes
SHA-256: abb0923702a291cd438215a9bfb77a614d197e0c545be4c3e609c374e86f7afa

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