Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dffb24a5043b5a1…

MALICIOUS

PDF

72.6 KB Created: 2021-02-23 03:25:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ea5b6661c6a8485e6082fe1da81550cf SHA-1: a6d231ea934a8893afced5c79cc39a3fa49ccb53 SHA-256: 9dffb24a5043b5a1b013d3adbdc860216d42fad67720677863bd91ac71d28d45
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://baarspo.ru/wix?keyword=power+rangers+figure+database PDF link annotation
    • https://cdn.sqhk.co/daxerarugak/hb3jjSE/mivojoridujon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454281/normal_5ff62416dbac1.pdfIn PDF document text
    • https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/ecdf44e35ffa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_6024738ccde93.pdfIn PDF document text
    • https://luvepuxoworusoj.weebly.com/uploads/1/3/4/6/134660421/4754006.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379615/normal_60279a523c387.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/kexukulowasan.pdfIn PDF document text
    • https://lufosafol.weebly.com/uploads/1/3/0/7/130775677/meromokomeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453336/normal_5fe95e2963814.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/dicigjb/dimipotasajulodawu.pdfIn PDF document text
    • https://munuteme.weebly.com/uploads/1/3/4/8/134862418/lokavuzibof.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/hihj5gc/fotefivudulozalufigipa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388427/normal_6011322fa3ac5.pdfIn PDF document text
    • https://cdn.sqhk.co/wanoposuj/phbq6jj/11778455441.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413017/normal_5ff7fdfd48199.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_off0000e026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE026 5276 bytes
SHA-256: de359cc75bcaefa487d72f583401b271da49ec6f90bdaf3810705c32d2be2f27
font_01_sfnt_off0000f239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF239 10232 bytes
SHA-256: 4a424babd52ef96ba648c6111963ca61d4bb211c7879226c69dfdea4a1955784