Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bf11b93d6a5be1b…

MALICIOUS

PDF

38.4 KB Created: 2020-11-09 06:48:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: b69381c65515bc1aa91569b22af19f19 SHA-1: 1114c60ba18099b46638f25d57ca2b4c302b883d SHA-256: 5bf11b93d6a5be1b8103a38add77da6679302c2f73f884996a736e667acc5c0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://trafffi.ru/aws?keyword=character+analysis+in+to+build+a+fire PDF link annotation
    • https://sofowalomutupal.weebly.com/uploads/1/3/4/3/134310420/jalemupo_voxelofaxa_vokirix_dalororoj.pdfIn PDF document text
    • https://xemupawiked.weebly.com/uploads/1/3/4/3/134321325/sifekewutefowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_5fa2a9a783148.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/pozokimepe/jar_jar_binks_george_lucas.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/3218837031.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/25396240455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2672dcb2-b7bb-4055-9f4e-1f479fe0f485/mm_filmes_hd_1080p.pdfIn PDF document text
    • https://natetoweno.files.wordpress.com/2020/11/lotogigupolulufap.pdfIn PDF document text
    • https://vobifex.files.wordpress.com/2020/11/97995462246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/256d4c63-8452-4758-b794-09584325ca7d/20233571766.pdfIn PDF document text
    • https://zegusotatat.files.wordpress.com/2020/11/38058694846.pdfIn PDF document text
    • https://nofagixonuva.files.wordpress.com/2020/11/21866246827.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5190 5256 bytes
SHA-256: 4af191c421e9e5424bae6cacfa9706dd557c0aca25364b5cb2eb9f0ed6667ff9
font_01_sfnt_off00006360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6360 1940 bytes
SHA-256: 414d786b459f0f5d2a731291ef1b870d88176140611ada2eab9f82aaf6e76e23
font_02_sfnt_off00006c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C95 9348 bytes
SHA-256: e98cd4a62d2a63fb63cfb6cfb23b3da101a2b69678470f452a0f7be9a2682151

Open this report in the interactive analyzer, or submit your own file for analysis.