Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a1c3bfe78225892…

MALICIOUS

PDF

69.1 KB Created: 2021-02-24 15:17:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5920496fd9414683702541b0ae26bee6 SHA-1: 03ab9df9f10b7235f84c93149a6961e9cd538308 SHA-256: 8a1c3bfe782258924f68543a0426d4e8a08ed5a74b279c154a687b85ae03169f
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://crophysi.ru/123?utm_term=fifty+shades+of+grey+moviescounter+download PDF link annotation
    • http://car-den.ru/magewitekegigul1mc6.pdfIn PDF document text
    • http://csxmoney.info/50669919721t26jc.pdfIn PDF document text
    • https://cdn.sqhk.co/zotipimesaza/dfhcCjh/wikipedia_donation_tax_deductible_uk.pdfIn PDF document text
    • http://vovality.club/peaky_blinders_netflixm5ioz.pdfIn PDF document text
    • http://like-store.site/xeruratekisosowugibageka2a8ui.pdfIn PDF document text
    • http://walletelectrum.buzz/dove_bagnoschiuma_formato_famigliazw475.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/nakuzafol/annexation_of_hawaii_timeline_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/96098645605.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/12238375266.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/zenera.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/kotilubiforilenew.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/423188241.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/21641266909.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/topukabapiban.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/work_certificate_template_for_visa.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/36899285721.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/android_9_disable_game_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/jikujetexaxudizujibugi.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/equalizer_bass_booster_pro_apk_latest.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/bulbul_video_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/baby_boss_full_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/77757600146.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_off0000cfe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE9 5644 bytes
SHA-256: 1620f1eb87412f95fa98e3bc6bffdeb56c3db718b83a4d52dca1c567552992ce
font_01_sfnt_off0000e31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31D 10512 bytes
SHA-256: 7a373f83901be19c8f315f83c93df0aaf80f4b6164bd1169e8431ce10226aa4f

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