Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ca7ce14b9784862…

MALICIOUS

PDF

79.5 KB Created: 2021-02-18 18:58:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a4fc6f9a2b2eb721aee91ec54125acf SHA-1: bb7d8b2f6872cf962e22970211ce9865c12aa7f5 SHA-256: 3ca7ce14b97848620adfb6305aec07cf06b73f44df66a722ab70f95eafca045e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wb?keyword=acorn%2080%20stairlift%20service%20manual PDF link annotation
    • http://card2card-perevod24.site/31137081284f4ge3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454544/normal_5fe6fb8c20273.pdfIn PDF document text
    • http://bekokasutam.22web.org/25113999358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369776/normal_6021a74fc39d9.pdfIn PDF document text
    • http://innov-cis.net/hitmonchan_pokemon_sword_evolutionnx8hm.pdfIn PDF document text
    • http://fepotarugagi.22web.org/all_of_me_piano_sheet_music_hard.pdfIn PDF document text
    • http://lerinumemikiw.22web.org/jurnal_pengertian_biomassa.pdfIn PDF document text
    • http://dragonflysagewellness.com/jebigomasororugepuwuikinm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424013/normal_601ad5ec35b64.pdfIn PDF document text
    • http://yoga-fitness.space/8501962234o1i4m.pdfIn PDF document text
    • http://zinuxuf.22web.org/vitutebidogireliliguz.pdfIn PDF document text
    • http://goodnatural.space/877991821571m8no.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zijemuviwovo.rf.gd/london_evening_standard_crossword_answers.pdfIn PDF document text
    • http://gufobipadu.epizy.com/35517346190.pdfIn PDF document text
    • http://nigukeja.epizy.com/m-audio_oxygen_49_silver_driver.pdfIn PDF document text
    • http://danofawo.rf.gd/satufexexidufel.pdfIn PDF document text
    • http://kotasogova.rf.gd/feedback_form_html_template_free.pdfIn PDF document text
    • http://nezopodadas.epizy.com/87783203683.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_off0000f8b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B7 5412 bytes
SHA-256: a083fc4ed2bb8f07cc1d15f2732fdf9dbacd2892c363c8aa21bd0a9bc451dbdd
font_01_sfnt_off00010b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B17 10992 bytes
SHA-256: 09671f28c7d396c72e5e00c784b5360c9b835530fc1152f9c20cdbed779f1d61