Malicious PDF — malware analysis report

Static analysis result for SHA-256 f66e6ad33b65d260…

MALICIOUS

PDF

73.4 KB Created: 2021-01-18 08:15:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 15c9ad20b88826d5e64c48b93d73de14 SHA-1: b70612d53df8c63070fc4288873cf5c8cd97434e SHA-256: f66e6ad33b65d260af4f721a1a24a00fb631eabd607a86130dd04135952d6405
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://traffnew.ru/wb?keyword=best%20drum%20set%20for%20child PDF link annotation
    • https://site-1172679.mozfiles.com/files/1172679/sesopis.pdfIn PDF document text
    • https://rukupapafi.weebly.com/uploads/1/3/0/7/130739745/931899.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376625/normal_5ff6988f3061c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387713/normal_5fb911eac1b21.pdfIn PDF document text
    • https://joxalazugadono.weebly.com/uploads/1/3/1/4/131437099/milatafexariru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464730/normal_60011fab37c90.pdfIn PDF document text
    • https://site-1167931.mozfiles.com/files/1167931/sabaton_carolus_rex_album.pdfIn PDF document text
    • https://site-1194448.mozfiles.com/files/1194448/64810377777.pdfIn PDF document text
    • https://bofujobepoj.weebly.com/uploads/1/3/1/1/131164048/fabazirowagibo_roxopamifer_zanerunine_tijezurisujoto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412195/normal_5ff11224990a8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/authorization_letter_to_get_documents_word_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/52689710483.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/11467534224.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/39009710503.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/mdat_gog_reporting_area.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_off0000e388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE388 5100 bytes
SHA-256: 5542dd513d5bd1c04a826e5720e4dcb79d67ef2a9070dc930a3c8d55b21c9769
font_01_sfnt_off0000f4bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BB 10720 bytes
SHA-256: e381da0f25fd0fc7f0d4e86518dedc530afd076e67ec30b12add3cdb4124baed