Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1266c1cd4dec65…

MALICIOUS

PDF

34.8 KB Created: 2020-10-02 07:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e8b24ca3c7a101921d673a89b80779f3 SHA-1: dfc256fc3693524a274f490393dadf701f848e7a SHA-256: ce1266c1cd4dec655420013514f079df9f3056d622985668e4cb645f05afca2d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/pify?keyword=sakura+hibachi+las+cruces In PDF document text
    • http://files.travellingpen.com/uploads/1/3/0/8/130813757/boginizana_zazemiz_mugifejubam.pdfIn PDF document text
    • http://xifewofu.congioia.org/uploads/1/3/1/3/131379256/bepomitaj-wufupotur-sereduxixiliv-fizopeji.pdfIn PDF document text
    • http://files.hangyourquilts.com/uploads/1/3/0/9/130968913/7fa97d6f.pdfIn PDF document text
    • http://zaraz.artfix.info/uploads/1/3/2/7/132712116/dogudenaj-duguligifixagin-bubite-lefupajulevodab.pdfIn PDF document text
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdfIn PDF document text
    • https://site-1036971.mozfiles.com/files/1036971/1845262160.pdfIn PDF document text
    • https://site-1036971.mozfiles.com/files/1036971/50353915110.pdfIn PDF document text
    • https://site-1038784.mozfiles.com/files/1038784/47488906551.pdfIn PDF document text
    • https://site-1036632.mozfiles.com/files/1036632/wevajinitakegopeke.pdfIn PDF document text
    • https://site-1039491.mozfiles.com/files/1039491/98075755902.pdfIn PDF document text
    • https://site-1037022.mozfiles.com/files/1037022/14979099944.pdfIn PDF document text
    • https://site-1036730.mozfiles.com/files/1036730/10220227650.pdfIn PDF document text
    • https://site-1037037.mozfiles.com/files/1037037/39530846903.pdfIn PDF document text
    • https://site-1036925.mozfiles.com/files/1036925/dawanejikolid.pdfIn PDF document text
    • https://site-1036651.mozfiles.com/files/1036651/35700449414.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE1 5196 bytes
SHA-256: 8f60d7be31cd96b8c0430ac57f1ad0d5bd4a19b6cb564ede20e91b54e091d8fe
font_01_sfnt_off00005c88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C88 10008 bytes
SHA-256: 75aebda60d83fedd4330c1968dc6c8caa7c0fdd466cb9363f085900d2ea46ae6

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