Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a6e677b345ceba…

MALICIOUS

PDF

72.2 KB Created: 2021-02-26 20:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fee9f1e3584595f6415d1c5b5efd1e6d SHA-1: 0d899201d39ea8bcefa3c0983d7ea6faf62b3bf9 SHA-256: 74a6e677b345ceba3dfaa873ba0da110d2b6a6f66cdf17c27c07c5af7edf8452
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/wix?keyword=starhub+tv+guide+online PDF link annotation
    • https://cdn.sqhk.co/kawonidoza/geQ4hjt/cbse_class_9_maths_textbook_solutions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366659/normal_5fcd3cc2d3f78.pdfIn PDF document text
    • https://cdn.sqhk.co/gisatajofo/ijgfTxW/duet_on_wilcox_death.pdfIn PDF document text
    • http://select-get.top/slot_racing_track_auu9qrt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404980/normal_5fe197f822ae2.pdfIn PDF document text
    • http://centerbluebadge.com/learn_english_basic_sentencesa0agu.pdfIn PDF document text
    • http://ital-tess.space/templates_login_bootstrap_freegmyuc.pdfIn PDF document text
    • http://retys.space/partial_differential_equations_for_scientists_and_engineers_downloadj28h0.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/68019525441wam26.pdfIn PDF document text
    • http://lienforkid.com/wuvexupuzupixok86gt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465263/normal_6001a6656dafe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_603370e50c30b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejesezape.myartsonline.com/how_to_reset_bluetooth_earbuds.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/how_to_calculate_steam_turbine_cylinder_efficiency.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_off0000de8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8F 5212 bytes
SHA-256: f882546b7ff23ca05bf9af052451c58e6bf5e02f134dd20eedb10572ee543687
font_01_sfnt_off0000f045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF045 10460 bytes
SHA-256: acc63874692b9b292c8ab8c61f2eb71c3970e3a96ad568886493e31fa9030600