Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcad4ab3c2189cfd…

MALICIOUS

PDF

72.4 KB Created: 2021-02-04 05:40:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b7db5c8e10e4130f0f59c8c07ab798a9 SHA-1: babddccb94b5b4dd67d656c31ef74cce09d9bf8d SHA-256: fcad4ab3c2189cfd4d87876a456275e881b369906f9b181f98fdca24bb69d77a
134 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wb?keyword=ace%20engineering%20academy%20hyderabad%20notes%20pdf PDF link annotation
    • http://fabermanufacture.ru/xigewoxuvenenemoluwepgpi1h.pdfIn PDF document text
    • http://dragonflysagewellness.com/jebigomasororugepuwuikinm.pdfIn PDF document text
    • http://saratov.ooo/ariete_coffee_machine_manualzpw0z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476421/normal_600e43ff1133c.pdfIn PDF document text
    • http://cuzinfo.ru/the_trials_of_apollo_download_free8t33r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368736/normal_5ffcbea3724be.pdfIn PDF document text
    • https://sudiduku.weebly.com/uploads/1/3/1/4/131452825/gutemowemoku_genuweg.pdfIn PDF document text
    • http://itasda.online/28407560426uit4u.pdfIn PDF document text
    • http://inmyshtangen.xyz/867181824601qocn.pdfIn PDF document text
    • http://spiritstudio.ru/meteor_garden_live_wallpaperxh8v3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388165/normal_600367653552b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373008/normal_6015d930489f9.pdfIn PDF document text
    • http://tophomework.space/72734084731thkvi.pdfIn PDF document text
    • http://ourfanz.com/los_24_tiempos_verbales_del_ingles_completo1czvl.pdfIn PDF document text
    • http://airet.space/airport_prg_hack_apka5dro.pdfIn PDF document text
    • http://livethailand.fun/fekebinotakogozusofidasmq2gj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jadupapobixe.epizy.com/3767688266.pdfIn PDF document text
    • http://fixuwebevu.epizy.com/cartoon_movies_full_free.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_off0000dc7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7C 5768 bytes
SHA-256: 1137630c68a8c3cd9321dc76af3904541082a26e36baf9ceaf83ac14d1e9690a
font_01_sfnt_off0000eff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF7 10664 bytes
SHA-256: 05faf0422cef234ade8b7bac2f77cf8661bd63fe0e3897457bc69174b0736f39