Malicious PDF — malware analysis report

Static analysis result for SHA-256 0458330eee4cafa6…

MALICIOUS

PDF

72.5 KB Created: 2021-02-24 19:22:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f62232fbacaeadfa47c37833846d166a SHA-1: 7ed5930b49cb160210517fc5f47d258aca806f70 SHA-256: 0458330eee4cafa6af1e1b7895960b93beff59c2e8bc64798223105b64dfb4a5
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://baarspo.ru/award?keyword=philosophy+of+science+pdf PDF link annotation
    • https://kapelivoxiri.weebly.com/uploads/1/3/4/0/134040857/09f2057.pdfIn PDF document text
    • https://gazodajatara.weebly.com/uploads/1/3/2/7/132712558/kinanixopodi.pdfIn PDF document text
    • http://podipotekoi.ru/578887716715t6b1.pdfIn PDF document text
    • https://supavutoni.weebly.com/uploads/1/3/4/7/134713891/7582317.pdfIn PDF document text
    • https://moraraxewurazi.weebly.com/uploads/1/3/4/0/134042425/4702398.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409243/normal_5ff88236f3845.pdfIn PDF document text
    • http://marketitaly.pro/dibiwamekigulob6w6fy.pdfIn PDF document text
    • https://cdn.sqhk.co/divabasom/HjhidgR/kongsberg_silver_mines_norway.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/Yzjamid/star_wars_a_new_hope_release_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463559/normal_600ba8fa7aeca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370265/normal_600111093517d.pdfIn PDF document text
    • http://masanakepatarar.iblogger.org/nts_synonyms_and_antonyms.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://varupasasadutab.rf.gd/blossom_blast_saga_app_free.pdfIn PDF document text
    • http://rikovaniroxatox.rf.gd/75486897138.pdfIn PDF document text
    • http://sawopigemon.epizy.com/beamer_template_for_thesis_presentation.pdfIn PDF document text
    • http://gagipuriligeme.rf.gd/how_to_reply_good_reviews.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_off0000e133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE133 5040 bytes
SHA-256: 47132f6fafa98eff2ebaad1d76131b18750db693be6298be4c522058e7e500d9
font_01_sfnt_off0000f26d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26D 10220 bytes
SHA-256: 5911a21546098f3b7cb222df2fb1e10fb4cf93de182d4f626aabf530434ff8c0