Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e1bfbb345a54781…

MALICIOUS

PDF

69.2 KB Created: 2021-02-12 12:04:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ba4634016fa2ad44460c5ac2fc5ce483 SHA-1: 1c7871d30e1a1ab9deba06eb3de4d9371e2aca0c SHA-256: 3e1bfbb345a547814916a9c7280ae2cf0fe6bb9eaba6560f5967149d01e7ccd1
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://bologen.ru/wix?keyword=bandai+millennium+falcon+1%252F350 PDF link annotation
    • https://tulovituvo.weebly.com/uploads/1/3/4/2/134234708/5712834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456372/normal_6017135c34f18.pdfIn PDF document text
    • https://gidisapawifo.weebly.com/uploads/1/3/4/6/134611794/sowusuvurovebu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383452/normal_6002554669f9f.pdfIn PDF document text
    • https://tupemewona.weebly.com/uploads/1/3/0/7/130775182/407955.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449600/normal_5fe103d16fd47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412591/normal_5feafdb5da750.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422392/normal_6023919f6a77e.pdfIn PDF document text
    • https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/38c364defe.pdfIn PDF document text
    • https://foroziroxodom.weebly.com/uploads/1/3/4/6/134647192/bikibupakoxi-figetutivasaz.pdfIn PDF document text
    • https://kunisalopug.weebly.com/uploads/1/3/4/3/134315348/noximi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bogizun.epizy.com/gaxowemeruvej.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_off0000d227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD227 5460 bytes
SHA-256: 8fdcb9593cf9c8f9f882a493c555b702ebc88d1a528f48efea6e67820f2002de
font_01_sfnt_off0000e4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C2 10212 bytes
SHA-256: adabfe6fe9da96b050d8bce088362e8929cf443d95084fe43a565a461ed98ba5