Malicious PDF — malware analysis report

Static analysis result for SHA-256 71ec7120bc576cd2…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 02:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e5a816c6ebc65af366f155783b1960b1 SHA-1: e452ea76f21c21a620460af1ff128b817dd99b6a SHA-256: 71ec7120bc576cd21e827ba9bf52a4ec1a8d0b085d9249bd68b5e0a26040623e
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/award?keyword=walmart+hours+brooklyn+ohio PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409799/normal_602b4fbb227d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485929/normal_5fed2e15cb818.pdfIn PDF document text
    • http://wumewil.sportsontheweb.net/age_of_rebellion_cast_2018.pdfIn PDF document text
    • http://laluwaraselolar.mywebcommunity.org/tp-link_tl-sg1005d_not_working.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/strategic_marketing_plan_outline_template_word.pdfIn PDF document text
    • https://cdn.sqhk.co/bawevabob/ghcjfie/2726518882.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/gij4Chi/99116303291.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/hjB0jeU/run_device_manager_as_admin_command_prompt.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/acer_aspire_e5-571_specifications.pdfIn PDF document text
    • http://boforotaje.mywebcommunity.org/how_to_train_your_dragon_2010_villain.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/hal_leonard_bass_method.pdfIn PDF document text
    • https://cdn.sqhk.co/moxoxitij/h1QyOBj/black_gospel_christmas_songs_playlist.pdfIn PDF document text
    • http://vaxisezawoged.scienceontheweb.net/laxorijizixav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417037/normal_5fdffa25e21e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489415/normal_6016d423eeed8.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/holt_mcdougal_algebra_1_common_core_teachers_edition.pdfIn PDF document text
    • http://gowanenutik.mypressonline.com/spinoza_ethics_latin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wafazitowem.rf.gd/99051741308.pdfIn PDF document text
    • http://mewizokefa.rf.gd/2020_kitchen_design_v9.1.1.466_crack.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_off0000de8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8F 5244 bytes
SHA-256: 9c415ed6521e145c8ea36df5591b45f440e83c9e93ab2797fd8c0293189ab2a0
font_01_sfnt_off0000f04a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04A 10980 bytes
SHA-256: ca890aac3bbe0360354a5c4b0dd82e2e40f992139239bf9071df7a5bc3018060

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