Malicious PDF — malware analysis report

Static analysis result for SHA-256 562c617e25f7a892…

MALICIOUS

PDF

70.6 KB Created: 2021-02-22 16:15:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 897aec857b52f8541390af67cad0e545 SHA-1: f27f1b33cd33456739a587d244e845e32d1fafd8 SHA-256: 562c617e25f7a8921c11d8e39e0826943ce3a19a6f2d785aee5b66618d465c17
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://bologen.ru/wix?keyword=%25D0%25B2%25D1%2581%25D0%25B5%25D0%25BC%25D0%25BE%25D0%25B3%25D1%2583%25D1%2589%25D0%25B8%25D0%25B9+%25D0%25B1%25D0%25BE%25D0%25B3+%25D0%25B8%25D0%25B7%25D1%2580%25D0%25B0%25D0%25B8%25D0%25BB%25D1%258F+%25D0%25B0%25D0%25BA%25D0%25BA%25D0%25BE%25D1%2580%25D0%25B4%25D1%258B PDF link annotation
    • http://smartradiobf.ru/australian_army_reserve_pay_rates_2017z3652.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380230/normal_600b77c07922b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_603343d6cb88f.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/bizat_sopeweliruf_xudebidakos_kewezuwo.pdfIn PDF document text
    • http://swiss-gear.store/automatismos_industriales_jose_roldas4ihy.pdfIn PDF document text
    • http://buvinivu.iblogger.org/is_high_blood_pressure_dangerous_while_pregnant.pdfIn PDF document text
    • http://copyrighthelpptteam.com/62610726513uk974.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373240/normal_60199f9e471c3.pdfIn PDF document text
    • http://salestore.pro/wd_my_cloud_ex2_ultra_automatic_backupzwzfw.pdfIn PDF document text
    • https://wadaletabuj.weebly.com/uploads/1/3/2/6/132695896/1417359.pdfIn PDF document text
    • http://trendmobile.ru/tamasha_full_movie_hd_worldfree4umzqbn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403119/normal_5fd671301c8ae.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/gotenukevepunin/sennheiser_ew_100_eng_g4_camera-mount_wireless_combo_microphone_system_a_516_to_558_mhz.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/38202598935.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/maintenance_calendar_template_excel.pdfIn PDF document text
    • http://dibijix.rf.gd/alta_via_1_guided_tour.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_off0000c5db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DB 6196 bytes
SHA-256: 0a430d79f82b357505d7beb0211250560b0e4fc2ec5c3bc9eba3e0fa117ea97c
font_01_sfnt_off0000da7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA7C 15476 bytes
SHA-256: 3a813425638475a15fb443ed6d2cd1fb358e802affcde16c253e1aedebdd0fa1