Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb54ca90efed17f9…

MALICIOUS

PDF

55.2 KB Created: 2020-11-05 20:43:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2f044d91bfd0d3b83a63222bb9ab37c4 SHA-1: 104ddcefc7ceb48f3a6b4fe9edfb3abe7f25fce2 SHA-256: eb54ca90efed17f9009f8314a15700d917cea171961cf6cb5c14d7d82db7e1a9
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://trafftec.ru/aws?keyword=spider+man+2002+full+movie+hd+watch+online PDF link annotation
    • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/8758850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413374/normal_5fa2fab2c0153.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/103a76.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/9633892.pdfIn PDF document text
    • https://lajibomigijiku.weebly.com/uploads/1/3/4/5/134587714/9677625.pdfIn PDF document text
    • https://kileligujet.weebly.com/uploads/1/3/4/4/134457719/7014922.pdfIn PDF document text
    • https://rugurujumififez.weebly.com/uploads/1/3/1/3/131384765/84405.pdfIn PDF document text
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/b8092.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/93049f265a0000.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/wikurixobelu/9565290500.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a45a1c0-e001-4959-a200-d2df9525c6bf/fojuzopitatagaxix.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/haas_cnc_lathe_programming_manual.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_off00009964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9964 5744 bytes
SHA-256: 024e1e235e622e93820497d51fa0b9af162d734d9014e7928c38b7b04a16f5bf
font_01_sfnt_off0000ace5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACE5 10156 bytes
SHA-256: 7e96dca6ce31fdde51ff6507c3b5c63be1f5bfe19065a3eb7c76645f7dc9063c