Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e11b02aae84fed…

MALICIOUS

PDF

63.8 KB Created: 2021-02-16 05:26:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d28d7faec3223e7bb094a8f1aced54d3 SHA-1: acba7ab7cdd0d64c6ca4b8bfdc588027dfcabae1 SHA-256: 30e11b02aae84fedf8047f2c851f83a65dec5354c303319ca42b7a52548448c2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wb?keyword=fender%20mustang%20iv%20v2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495385/normal_6028879b25763.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474475/normal_5fd6526731802.pdfIn PDF document text
    • https://lumixomenuvaw.weebly.com/uploads/1/3/4/7/134745504/xijigoxi.pdfIn PDF document text
    • https://selijejexo.weebly.com/uploads/1/3/0/9/130969160/jawed.pdfIn PDF document text
    • http://ndfnasg.xyz/kokitefofudixuwemuwk7n3y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392868/normal_5ff5cdf7aa122.pdfIn PDF document text
    • https://wakevilapiz.weebly.com/uploads/1/3/4/9/134903367/95c9ce836bef.pdfIn PDF document text
    • https://jinonapipi.weebly.com/uploads/1/3/4/4/134481743/67fe7311.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465938/normal_5fc9c78045c31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460477/normal_5ff339a7bc9c3.pdfIn PDF document text
    • https://vawuzusafut.weebly.com/uploads/1/3/4/8/134863851/mojev.pdfIn PDF document text
    • https://lalotuzeguraja.weebly.com/uploads/1/3/1/3/131383936/bfde22c2f3.pdfIn PDF document text
    • https://nametipij.weebly.com/uploads/1/3/1/1/131164318/sabigovibune_mufunibatilo_lonegulurolak.pdfIn PDF document text
    • https://fibuwusosa.weebly.com/uploads/1/3/4/7/134700524/5920890.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/sigobija/4822256380.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_off0000bbcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBCC 5260 bytes
SHA-256: 6a7264502f1abdef2dd24f4d97e5cfd86cf18cd52b4f517c46ef4428cd786fa9
font_01_sfnt_off0000cda3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA3 11088 bytes
SHA-256: b7b9552cdfe08e22648e04e112bef95c0cff0b1652d8e3630b49bfa316f84bdb