Malicious PDF — malware analysis report

Static analysis result for SHA-256 85841ce4112419ca…

MALICIOUS

PDF

72.2 KB Created: 2021-02-08 08:39:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a04c8cf37134e5105cbb2261f6a55aac SHA-1: 5b21dc790b4550ec419a85e870b0969586652eb2 SHA-256: 85841ce4112419ca8cb48fbe892d36380e9964e10b52a76baad83b986703558e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wb?keyword=kamus%20bahasa%20sunda%20lengkap%20pdf PDF link annotation
    • http://zufonirawanowo.iblogger.org/motulutigemavifitiromusa.pdfIn PDF document text
    • https://roxabagoxe.weebly.com/uploads/1/3/1/8/131857818/bibagipamojuzudesa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405930/normal_5ff221274a841.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469638/normal_5ffabc711047e.pdfIn PDF document text
    • https://sulagumafiwez.weebly.com/uploads/1/3/1/3/131383207/8574115.pdfIn PDF document text
    • https://dutebosolet.weebly.com/uploads/1/3/0/9/130969562/lifipikupudosokufile.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/gg0ibjh/51108287282.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rewezaxow.epizy.com/equipment_qualification_guidelines_ppt.pdfIn PDF document text
    • http://fupuzujovo.epizy.com/oral_presentation_skills_for_students.pdfIn PDF document text
    • http://roxutudutupit.epizy.com/17999741528.pdfIn PDF document text
    • http://jitemawuvefogox.epizy.com/agathiyar_movie_video_songs.pdfIn PDF document text
    • http://zifawikixeliba.epizy.com/gozejirabutilatoxator.pdfIn PDF document text
    • http://xujiwusa.epizy.com/koverixisoxitafosenex.pdfIn PDF document text
    • http://jovunalinuz.rf.gd/general_ledger_template_free_excel.pdfIn PDF document text
    • http://jubagas.epizy.com/43873768270.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_off0000df59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF59 5532 bytes
SHA-256: d8ba68ec00057a10940e926b81b4519cab5a8332c2b5334625376679ad351124
font_01_sfnt_off0000f202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF202 10184 bytes
SHA-256: a17d179be30424ccc3be31d10578b4431a60450691d375689d9140788e75c51a