Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b7ee345a69612e…

MALICIOUS

PDF

72.3 KB Created: 2021-03-01 07:57:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fc4642cf22d2d926905cd7d7ed4180a7 SHA-1: 3c9a8477238afb7e863adcb4d096b67f59d4955f SHA-256: 35b7ee345a69612e3964aa9deae30de5a735c5930c923a267ebf01c79178f8dd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/award?keyword=red+dead+redemption+trophy+list PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416502/normal_5fc98ff12c9b7.pdfIn PDF document text
    • https://rudunusom.weebly.com/uploads/1/3/4/6/134602981/bojurijikaxa-somewo-vuzetob.pdfIn PDF document text
    • https://xusuzipurojovup.weebly.com/uploads/1/3/4/3/134325257/rikavuzotolimi.pdfIn PDF document text
    • https://bawufavipefal.weebly.com/uploads/1/3/0/7/130740211/8066976.pdfIn PDF document text
    • https://guxatizozekeme.weebly.com/uploads/1/3/4/7/134733227/ce535b82ef.pdfIn PDF document text
    • https://bixirugabo.weebly.com/uploads/1/3/0/9/130969405/d3fa11ad22.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/bjc7ugd/wijifeda.pdfIn PDF document text
    • https://tulalesin.weebly.com/uploads/1/3/4/8/134876190/diwulodopo.pdfIn PDF document text
    • https://paxogusav.weebly.com/uploads/1/3/4/0/134040839/debulefitipe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471238/normal_5fe3024be1faa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463785/normal_5fe3d54413f31.pdfIn PDF document text
    • https://funujitumim.weebly.com/uploads/1/3/5/3/135347265/devowiwogesumobeged.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sijarobe.rf.gd/34225984128.pdfIn PDF document text
    • http://resisojopemolo.epizy.com/63600011596.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_off0000e07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07F 5308 bytes
SHA-256: e286b5f47e728ca079d38e31e9959769edfb271a8e76fcd42d544d555692939a
font_01_sfnt_off0000f26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26C 10060 bytes
SHA-256: a9b3c5585fc072c33029f5421abd1ed365114a9ec4d053091ac4c79358ff6fce