Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8076a52316486c2…

MALICIOUS

PDF

79.0 KB Created: 2021-04-29 23:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: d0f7c6bbdfb17dc0d9fb1e5c8d7bd4fe SHA-1: 3af09bc18ca04288a6711bd793f7616f10a96ac7 SHA-256: d8076a52316486c25247effbc08415f63e5743305b55ffc5ead53cf331235d30
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to financial wealth, aligning with the detected external URI.

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://maypoin.ru/strik?utm_term=how+much+is+the+richest+person+in+the+world+worth+2020 PDF link annotation
    • https://cdn.sqhk.co/kegetaxob/JgcJ0gi/nazijemiwoxuderu.pdfIn PDF document text
    • https://cdn.sqhk.co/pogadidotilu/iggcha5/zedge_app_for_android_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/genonitag/Vgde6gf/hero_or_villain_battle_royale_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kosadara/jijgeie/jukaxibo.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/yiazjeY/check_cashing_store_hancock_cape_coral_fl.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/D80gTha/87986650576.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/vgcCvha/dirojonudogekuvunumakom.pdfIn PDF document text
    • https://cdn.sqhk.co/zikonidenijo/jjOsMgi/neighborhood_walmart_gas_station_careers.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/iqgjow3/devakineruwagut.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/hihhmhf/badland_brawl_best_beginner_deck.pdfIn PDF document text
    • https://cdn.sqhk.co/salobosemiv/ctig9gg/red_rose_transit_bus_14_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/97VZij7/youtube_subaru_impreza_rally.pdfIn PDF document text
    • https://cdn.sqhk.co/vugomupuzisa/cMkcghP/download_mp3_music_cutter_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/daborofus/fhalwhb/starlink_release_date_spacex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dutagewenurodub.epizy.com/affairscloud_gk_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/78910694240.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/56976125670.pdfIn PDF document text
    • http://foretoxute.epizy.com/ib_visual_arts_guide_2021.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/quadratic_equation_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/jovozurivurofotobimelobir.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/digital_signal_processing_engineering_notes.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_off0000f544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF544 5428 bytes
SHA-256: 0a8f8615b94f94ddac6f42608dd2fdbfce91be7004586c2959d22d634e6c75c2
font_01_sfnt_off000107a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A7 11400 bytes
SHA-256: 0c8e18bb24e560257b5c3c1f6337defa6a300a097ca76a127c7e074b7303aa84

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