Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89d02573924ad6b…

MALICIOUS

PDF

68.4 KB Created: 2021-01-28 00:15:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: ab4ccf8f6748c7ce457ddd321a543e26 SHA-1: fdfdbeb636818e8d7edb63fa0518fc1a94afa5a3 SHA-256: d89d02573924ad6b9a24197e175b9092b39463821cb2ff8df54fe153f618d94a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'maypoin.ru' suggests the document is designed to redirect users to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt, likely leveraging embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=shopping+percent+project PDF link annotation
    • http://insta-sale.site/447186826324pgov.pdfIn PDF document text
    • http://atlas-copco.su/furulisizugejaxani7nihz.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/hjiihxF/60995025969.pdfIn PDF document text
    • http://nout-sale.site/realistic_car_crash_games_xbox_oneq29lo.pdfIn PDF document text
    • https://cdn.sqhk.co/gobonuzuwif/jSQhJ4Y/what_do_you_deem_appropriate.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5fd0a7b5b8a20.pdfIn PDF document text
    • http://padlamadla.site/andrew_carnegie_the_gospel_of_wealth_worksheetf8765.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/jhEOLJg/fojeji.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/JTqsgiV/forgotten_hill_fall_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/wiakhYs/fruit_ninja_game_online_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lebogomatoze/1hd29wM/botusokuzotazegaf.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/heihKii/rulopibum.pdfIn PDF document text
    • https://cdn.sqhk.co/xogutozo/hjTR5iJ/76300228049.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/gdhjkIm/22832553595.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/jajduol/ikea_black_friday_coupon.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/lixasifasi/elm327_bluetooth_pc_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/fenodusem.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/saltwater_swimming_pool_chemicals_guide.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_off0000cf6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6B 4956 bytes
SHA-256: cd4010d7c2907d05a4711f0482e3ee0e6bcc4e71b4318ddc63ff5a62709f367a
font_01_sfnt_off0000e052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE052 10724 bytes
SHA-256: e72d656024306d18dd9222f2ed3bcceef47bf9a86c0a893c49d9285ee80f61e2