Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e6d0df7c579e2b…

MALICIOUS

PDF

34.6 KB Created: 2020-10-10 19:02:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 0cc6360e127664ed6739a044b1a429c2 SHA-1: b8a01773df771fef8b2757743516f6bf87d8ae73 SHA-256: 57e6d0df7c579e2b28e0baa66136f75fe08a839ae07695ef439cdbc1281b0e38
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.club/pify?keyword=salt+river+pima+maricopa+indian+community+jobs In PDF document text
    • http://files.mightytales.net/uploads/1/3/0/7/130739312/betefelabiv.pdfIn PDF document text
    • http://fovovew.trailsuntraveled.com/uploads/1/3/1/3/131398134/jogewutijejo_sepiginawekaw_rinamez_pozamof.pdfIn PDF document text
    • http://takotip.pelhamartfestival.com/uploads/1/3/2/6/132680835/zokamoto.pdfIn PDF document text
    • http://zukom.otticacastelli.com/uploads/1/3/1/4/131406286/jezadusibefuvo-gebisetu-dadunawi-bukipi.pdfIn PDF document text
    • http://miguwi.divine-dwelling.com/uploads/1/3/1/4/131437833/rudovikexupukanaz.pdfIn PDF document text
    • http://files.slowburnmarketing.com/uploads/1/3/2/6/132682681/b4efd643.pdfIn PDF document text
    • http://tatavip.prairiefieldshoa.com/uploads/1/3/1/0/131070291/b9131e.pdfIn PDF document text
    • http://bikezag.sunshinecoastcelebrant.net/uploads/1/3/2/6/132680981/e88b8f7fc10e.pdfIn PDF document text
    • http://gemigil.bigtrecreation.com/uploads/1/3/1/4/131406535/napuxe.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/466ff011-4e43-4471-b9e8-a46a8cd9ad84/6154467407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd407242-e9c2-4040-b59a-11ba02009587/30496911405.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_off000046cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46CD 5700 bytes
SHA-256: 81fa339288a6eb800c933fe0e94bbdcf1d954c90e95c3628cb5acd53c6c64009
font_01_sfnt_off00005a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A14 9920 bytes
SHA-256: 3cbdded2093894d53ed3233ef731b63b8b37b872859c6de41b1eafec25654ae1