Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e01ad288d83a478…

MALICIOUS

PDF

71.5 KB Created: 2021-02-25 18:06:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: de972b91a6c3934aa387a92f5aa4fa5c SHA-1: e3a30932a06d22dcbde9c7cb054401cc7aa1c737 SHA-256: 6e01ad288d83a4781f0c58e42a2397b63cb079248e154b404b5acb50164b53c9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=how+to+fix+printer+error PDF link annotation
    • https://cdn.sqhk.co/kanemili/rjcghha/easy_pose_best_posing_app_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/Cchduid/vegax.pdfIn PDF document text
    • http://jamonomikusuka.22web.org/pipe_fitting_size_guide.pdfIn PDF document text
    • http://jolujunutido.iblogger.org/zawemexavalaba.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/mNifjcH/wisilamupajupagav.pdfIn PDF document text
    • https://mofafodoler.weebly.com/uploads/1/3/0/8/130874416/0236778bc099.pdfIn PDF document text
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/luvovarurubedem-nafitelebasa.pdfIn PDF document text
    • https://tonituligavu.weebly.com/uploads/1/3/4/8/134884188/najoreniferafogiminu.pdfIn PDF document text
    • https://vakitisize.weebly.com/uploads/1/3/4/0/134017930/03f425b5895.pdfIn PDF document text
    • https://totijavefukaja.weebly.com/uploads/1/3/4/7/134705726/31f00469040.pdfIn PDF document text
    • https://soxiwavarado.weebly.com/uploads/1/3/1/4/131437421/9990896.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/tumasun/bofonuzozufawob.pdfIn PDF document text
    • http://rufeluvogoweva.epizy.com/78029919873.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/90216950250.pdfIn PDF document text
    • http://lajuloverebob.epizy.com/43073103745.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_off0000df1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1D 4596 bytes
SHA-256: 97e4f7086120e05d9230ad7eee5294eb6d209e640d0fce082779ba6e04d60c87
font_01_sfnt_off0000eee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE7 10016 bytes
SHA-256: 9631ad7de6ebcbc066dbc9e159b54324f55181150256361042c2a344c1d374a8