Malicious PDF — malware analysis report

Static analysis result for SHA-256 411de1860cdf8087…

MALICIOUS

PDF

39.0 KB Created: 2020-11-07 00:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 10439f2234a663a3fda911adf8efe379 SHA-1: 11d7d121cbb2e59410a23d16e11dea1497ec9ee7 SHA-256: 411de1860cdf8087f1c75c7ea0d4164bf71801e7a72f77f9783a7d73a12a44b6
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://traffset.ru/123?keyword=carsmart+direct+hendersonville PDF link annotation
    • https://pesodubebugi.weebly.com/uploads/1/3/4/2/134234841/8506996.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374859/normal_5f950e63d57ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392472/normal_5f9fcf3fb8fda.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/xetezarozoforaboron.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5fa03d56df081.pdfIn PDF document text
    • https://gemamiji.weebly.com/uploads/1/3/4/3/134372226/zewisojivapen.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/jemazejodep/jovakitalosotidezodujal.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/cen_review_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13443a94-d6d7-474b-954d-ec9ab76dfd72/may_5th_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/vunuzifupazijinoja.pdfIn PDF document text
    • https://vowewefu.files.wordpress.com/2020/11/tratado_de_cardiologia_braunwald.pdfIn PDF document text
    • https://salemug.files.wordpress.com/2020/11/2009_rav4_workshop_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/how_to_convert_to_word_in_nitro_professional.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_off00005de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE3 5144 bytes
SHA-256: 04b26fa43611cc908c65dee213dc7858d220c849abe33e8b70919a173b449eb5
font_01_sfnt_off00006f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F36 9412 bytes
SHA-256: fdcc971163cf9cbbc8d8572400fc425ac92908c7453b666bc88cb5ee5b239c08