Malicious PDF — malware analysis report

Static analysis result for SHA-256 54ddfb63444c65fa…

MALICIOUS

PDF

67.6 KB Created: 2021-02-19 20:01:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 08a46d961811baafca89166274f3a7c1 SHA-1: bde28937515725e3c83c7860b731a22f32e8bc9a SHA-256: 54ddfb63444c65faa70aa97dd743eb8e5fc0fbdf90390e62ecca6e8a8b9526b0
186 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=ftb+eldritch+guardian PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486523/normal_6028a141577c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460723/normal_602c8bd933ec3.pdfIn PDF document text
    • http://limigulel.iblogger.org/15519978039.pdfIn PDF document text
    • https://cdn.sqhk.co/vemosoveveb/bPW9hhQ/grisaia_no_kajitsu_yuuji_master.pdfIn PDF document text
    • https://cdn.sqhk.co/jetirivotu/e8giiiv/linear_regression_equation_calculator_ti-_84.pdfIn PDF document text
    • https://vobudogekatobef.weebly.com/uploads/1/3/0/8/130874620/suwajanamexa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444370/normal_5fffd9b142af0.pdfIn PDF document text
    • https://cdn.sqhk.co/ninivaxibab/gjahbqS/sculpture_definition_for_kindergarten.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413347/normal_5feefaf5ee6e4.pdfIn PDF document text
    • https://cdn.sqhk.co/joziroluxu/jc2iihd/13194982565.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/WggpRd7/excursiones_crucero_costa_favolosa_fiordos.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuzikarowom.epizy.com/facilities_asset_management_plan_template.pdfIn PDF document text
    • http://lajimaju.epizy.com/detilivovowetanopa.pdfIn PDF document text
    • http://kipafiperugava.epizy.com/cost_accounting_mba_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/wezemoxujonoku.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/lagodesatew.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/fugadofabajejavagoma.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_off0000ccbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCBD 5120 bytes
SHA-256: 08dfb171d21966eb4cee925e7f3a334f6d4f2b3222f15cac728205a6850f8d9c
font_01_sfnt_off0000de1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1F 10480 bytes
SHA-256: e6de98248d7715e8227af210d476ba47291ffa0066023ae559099ee269f2f9e8