Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ec35ac761d5035…

MALICIOUS

PDF

65.1 KB Created: 2021-02-16 21:37:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 22ba6ea09526e54f72a1ab9ac9841708 SHA-1: 4dbea67b081dc6b596869eb57b76edd42cee8f74 SHA-256: 63ec35ac761d5035e3b4d56e04ce0a7abe63f5afbcba4b0e03cf1e2a4a5fc655
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=creep+craft+2+full+version+download PDF link annotation
    • http://subfamjtii.site/72666625696vkh53.pdfIn PDF document text
    • http://cleanup-sale.site/autocad_app_for_androidgf7rv.pdfIn PDF document text
    • http://mumezofenina.22web.org/20435930366.pdfIn PDF document text
    • http://oneitstore.info/ulala_idle_temper_guidewqx4q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418197/normal_600f60580e82d.pdfIn PDF document text
    • http://mukifufiri.iblogger.org/canada_newspaper.pdfIn PDF document text
    • http://daimontimur.org/vicks_humidifier_cleaning_manualtynzz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496580/normal_60166fe39dde3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427785/normal_600190b2138a6.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/vukusa/osrs_crafting_guide_99.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/wiluduvoruwezev.pdfIn PDF document text
    • http://fifonuvis.epizy.com/search_video_app.pdfIn PDF document text
    • http://jilutuve.rf.gd/practice_exponential_functions_form_g_answer_key.pdfIn PDF document text
    • http://gunijeru.rf.gd/24703904981.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/the_cell_cycle_and_checkpoints_worksheet_answers.pdfIn PDF document text
    • http://xarotuwegu.rf.gd/ben_10_tamil_dubbed_movie_free.pdfIn PDF document text
    • http://zesubilav.epizy.com/monthly_calendar_template_printable_2019.pdfIn PDF document text
    • http://latowetutut.epizy.com/vafunowejudimekiku.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_off0000c1cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CF 5340 bytes
SHA-256: 2caa665ba7a773eb6116042161145f3df912e8c60df5b2c9ec65a915e8732f42
font_01_sfnt_off0000d41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41C 10344 bytes
SHA-256: f7cf2720b8e1d8728a0e13e245e1afb084c423bd63547e94d65b493a33a9ad5f