Malicious PDF — malware analysis report

Static analysis result for SHA-256 2113dccfc9953ed0…

MALICIOUS

PDF

69.5 KB Created: 2021-02-27 08:24:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1626851c48fbc8c879a847428742b0a7 SHA-1: d9bc211afa440f2820d0cd9f4d48ba5bc32e24a6 SHA-256: 2113dccfc9953ed01f491aaaba8a8b8ee73af68029f39f0d6ef451ba7368cbd7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://kuzutuzo.ru/award?keyword=what+did+the+baby+in+rosemary%2527s+baby+look+like PDF link annotation
    • http://shoop-fn.ru/kedovukadetijidux63y33.pdfIn PDF document text
    • https://kuvikupomudu.weebly.com/uploads/1/3/4/4/134457818/ziwawabuwapuvom.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/dewakoduvinunowap.pdfIn PDF document text
    • http://beststudent.space/10232601583da16e.pdfIn PDF document text
    • http://punejew.mygamesonline.org/scottish_snare_drum_rudiments.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/pixexorozegodera.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/what_is_the_other_term_for_captive.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/30663448089.pdfIn PDF document text
    • http://ferenekukosazu.epizy.com/christmas_songs_telugu_2019.pdfIn PDF document text
    • http://tubasumipuputad.epizy.com/15448632143.pdfIn PDF document text
    • http://vugifoxo.epizy.com/kepezosoji.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_off0000d34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34E 5416 bytes
SHA-256: fc1152c698fd76eaa87d9af25e7e360dedfb4a16f2e30402b723cc8726cff4b7
font_01_sfnt_off0000e5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A4 10192 bytes
SHA-256: b4e7d6174dc437286babf9e7bab762b9a36521ba5a43fa39a914d51c853ff6ad