Malicious PDF — malware analysis report

Static analysis result for SHA-256 0755064e3f27c00e…

MALICIOUS

PDF

75.1 KB Created: 2021-02-21 19:23:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ebdadec37c17bbfff6312e53c1c55a45 SHA-1: 3766b13deb6251abfb85b370670d001f4518f45c SHA-256: 0755064e3f27c00e7e19fc7f24c4973c5390fbc80fad81298f28d37821d9f989
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://jacksth.ru/123?utm_term=surf+fishing+rod+combos+for+sale PDF link annotation
    • https://jaluzirilunotu.weebly.com/uploads/1/3/2/6/132681851/jefoguboxamukiguf.pdfIn PDF document text
    • https://tudaluvakagovax.weebly.com/uploads/1/3/4/6/134614365/puliguboruledan_tupaxujadezitu.pdfIn PDF document text
    • http://zoomita.space/77183122725y7aq0.pdfIn PDF document text
    • http://italia-doc.space/duxalafonafeq6xr8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411218/normal_5fe0135f94e2b.pdfIn PDF document text
    • http://abreudesigns.com/night_of_the_living_dummy_214yav.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/Zewhaib/movie_studio_manager_game.pdfIn PDF document text
    • http://rating-bookmaker.ru/29864198771p641w.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/gfjeOjd/wotimema.pdfIn PDF document text
    • http://webpost.pro/the_sandman_dc_comicsnugae.pdfIn PDF document text
    • https://fadefewili.weebly.com/uploads/1/3/4/3/134316521/ddea7b4b66d9.pdfIn PDF document text
    • https://ruxibotululag.weebly.com/uploads/1/3/1/4/131408142/tofepikogeviwegowina.pdfIn PDF document text
    • http://dkmz1.club/5462643629j2b10.pdfIn PDF document text
    • https://timifuxi.weebly.com/uploads/1/3/4/6/134676324/tewesurisexebuwux.pdfIn PDF document text
    • http://buytoday.cc/pexawipuxesazafajawu5cn5c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD71 5676 bytes
SHA-256: 000873182a1a235b596789c97c295806b5435d8a436d5c77aebff5f013bbafd0
font_01_sfnt_off0000f08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08F 15464 bytes
SHA-256: 21ebdce6be7727887423b237b5b5432032909270e189562838c9e44d8855adb8