Malicious PDF — malware analysis report

Static analysis result for SHA-256 69050e6b2e1cd320…

MALICIOUS

PDF

69.3 KB Created: 2021-01-28 14:26:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6fc8a05bba423d17c21520f7f3a12f39 SHA-1: f6ee9a15e071ebc8e485a02057a50c747bf78d23 SHA-256: 69050e6b2e1cd3207d4da215d26c8c8c9625dc5fee92ff2d6afb45b4964d4b13
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://leonvi.ru/wb?keyword=diet%20breakfast%20ideas%20low-%20carb PDF link annotation
    • https://sevujixosatanin.weebly.com/uploads/1/3/5/3/135316334/dodijulesusora.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481852/normal_5fd1282d4b87f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393363/normal_5fd860fab5d23.pdfIn PDF document text
    • https://kuwuvolabakeg.weebly.com/uploads/1/3/1/4/131407812/8993506.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/exdPiiV/bixatubina.pdfIn PDF document text
    • https://dubakaxejevam.weebly.com/uploads/1/3/2/6/132696109/3657044.pdfIn PDF document text
    • https://barurusijibipek.weebly.com/uploads/1/3/0/7/130740419/8f422471382.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465259/normal_5fd08fb2cbbb3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419002/normal_6007d5a7c1fe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468540/normal_600a4e9f7f72c.pdfIn PDF document text
    • https://lumirofelefepo.weebly.com/uploads/1/3/4/8/134892557/8641161.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuputid/7J6iepA/tugafagepodogu.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/bokexizometun/e_district_odisha_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/travertine_pavers_installation_guide.pdfIn PDF document text
    • http://vepesupilet.epizy.com/cheque_book_request_application_form.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_off0000d2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AB 5340 bytes
SHA-256: 42422c9dfec28587e3bb72d5990c2efb67aeeebef6d62f4782a32455180b0454
font_01_sfnt_off0000e506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE506 10524 bytes
SHA-256: a4ab58b9605fe1f4acbc30ef9b0e475c36b575aa1a40f99633dc5ee6e949d021