Malicious PDF — malware analysis report

Static analysis result for SHA-256 12d77c4a76c326ad…

MALICIOUS

PDF

36.9 KB Created: 2020-11-07 01:09:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-02
MD5: cd73782f8e182c5dbd54cdb1576e5831 SHA-1: dd2b7e8e4cfea6708b996efb23f62876dea16aff SHA-256: 12d77c4a76c326ad3a6b7884b99d8720727b2b95bd4f3a5db93fc47d3c369178
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://trafficel.ru/aws?keyword=plaza+pharmacy+houston+texas PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375885/normal_5f989da80b80e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376610/normal_5f9d3731b17ae.pdfIn PDF document text
    • https://bedakowunuva.weebly.com/uploads/1/3/4/3/134342711/3130aea95da.pdfIn PDF document text
    • https://pokezivakizame.weebly.com/uploads/1/3/4/6/134619377/8974761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368244/normal_5f91775cc13e2.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/5686684.pdfIn PDF document text
    • https://xabisemegebo.weebly.com/uploads/1/3/4/4/134491474/b6dfb12b3c6592.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/katoniselol_mirexanepolax_fipalulajuw_rijupapomisor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5f8d41f44ec8a.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/646c3.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004d33.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004d33.bin)
    • https://s3.amazonaws.com/jofunoje/javadimadewewifob.pdfIn PDF document text
    • https://jutewijil.files.wordpress.com/2020/11/urbanista_stockholm_manual.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/24_day_challenge.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 extracted file (font_00_sfnt_off00004d33.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D33 5392 bytes
SHA-256: 77c39d604b246969b95e3559af254ce858a00da5a0cd5bb21a66642be96ab14f
font_01_sfnt_off00005f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F73 11432 bytes
SHA-256: 3abe33217c58174a561e4d5ef4a801b3e25437274bc29da64ac94c530b0e4bbe