Malicious PDF — malware analysis report

Static analysis result for SHA-256 293eb5c9b288a81c…

MALICIOUS

PDF

35.3 KB Created: 2020-11-07 04:17:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a423511a39db459c4303cdb4275f20a7 SHA-1: 0719886f7a6f67a3eb9bfcb9ed36cb34f7498630 SHA-256: 293eb5c9b288a81cd4c8757cbec53b0e326cc488164b3075de174c50fd62c183
74 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=starfinder+pdf+fillable PDF link annotation
    • https://zusaneji.weebly.com/uploads/1/3/0/8/130813769/46e6b5fa21aceb.pdfIn PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/2327983.pdfIn PDF document text
    • https://valuluxunu.weebly.com/uploads/1/3/2/7/132710491/5286387.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379043/normal_5f9126993311b.pdfIn PDF document text
    • https://waxovidimised.weebly.com/uploads/1/3/4/4/134446407/zasunasijito.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/ranerilin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385213/normal_5f8d8481eba8f.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/3449483.pdfIn PDF document text
    • https://tidoxanarapora.weebly.com/uploads/1/3/2/7/132710787/da06fc8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1073c432-2f00-49f7-b3bd-a048a767f5a7/26966675113.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/43853971298.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25eebe4e-a8e4-42e4-8e64-4679af66faa9/xilurigadu.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/povul.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_off00004abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ABF 5100 bytes
SHA-256: 117f772b3d1efbb96a9ce22e94b0bed8d3c5d1670621b82673ca7451089af54a
font_01_sfnt_off00005c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1B 10952 bytes
SHA-256: 8d139988c8cecccc1a0f21265806fd560039394013a15c1f005844284fc672dd