Malicious PDF — malware analysis report

Static analysis result for SHA-256 3112232404fe0d84…

MALICIOUS

PDF

42.3 KB Created: 2020-11-06 04:52:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fd897fed6eb1166a4036567ba1c383b8 SHA-1: 9c9e49094ba3ce538f02b757964e2d3d884f4da7 SHA-256: 3112232404fe0d84c4976e2f6668c716d13d99bd32847b34a06cd248d138f79f
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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/strik?keyword=idle+miner+hack+game+download PDF link annotation
    • https://sajenaviwabawi.weebly.com/uploads/1/3/4/2/134266368/e57f4.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/dfd41f0916b69d8.pdfIn PDF document text
    • https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/kupovapifin-duduxufir-sadedowusi.pdfIn PDF document text
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/rowevusadutip-fuduzep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386621/normal_5f8d1da178e77.pdfIn PDF document text
    • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/vitufimek.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/guwutivupudutu/20123185241.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/agenda_2063_english.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/pdf_split_merge_basic_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/synonym_to_underestimate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/509878d9-9501-447e-9514-3be0c60ae392/9897977531.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/apocalipsis_666.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/nc_teacher_evaluation_tool.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_off000065c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2 5268 bytes
SHA-256: c376f04d42467375fc75ea5128bb51d87a584f89d4ffcca29c5eec7b03f4f27d
font_01_sfnt_off00007790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7790 10240 bytes
SHA-256: 63682f5cf2710229f7add582d267b7d04d4965c135f3028e7895631cfebf51ea