Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c75c0ebcc0920ad…

MALICIOUS

PDF

74.2 KB Created: 2021-02-27 06:58:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e8b24dd35209a89fc18eae62f4651713 SHA-1: 2be566cee92ed4e7b76fa3680e60cf44748c2df9 SHA-256: 8c75c0ebcc0920ad2a1e3a4954da8b3802c6a46c3a015f99d4cdb69aca5efa29
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://resalured.ru/wix?keyword=david+berger+northwestern+university PDF link annotation
    • http://povar2020.site/nutrition_information_canadian_beerstefe.pdfIn PDF document text
    • http://ogranifruit.space/introduction_to_algebra_2_worksheetsk1dvg.pdfIn PDF document text
    • http://luxshop21.site/fobusizajalabozobadup69i3.pdfIn PDF document text
    • http://reduslim-italiaoficial.site/58469458733ioal0.pdfIn PDF document text
    • http://small-italy.space/zedenulozopd0fx.pdfIn PDF document text
    • http://tourist.fish/66539532169nj9xi.pdfIn PDF document text
    • http://pivowave.iblogger.org/52677594876.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/wukevirenesu/stoichiometry_limiting_reagent_worksheet_1_answers.pdfIn PDF document text
    • http://gipezivav.epizy.com/practice_worksheet_parent_graphs_of_trig_functions.pdfIn PDF document text
    • http://safefimij.epizy.com/13755696998.pdfIn PDF document text
    • http://deketinak.rf.gd/35394404097.pdfIn PDF document text
    • http://rokosarod.rf.gd/86089794779.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/android_box_not_working_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/78090510803.pdfIn PDF document text
    • http://lowazuxakosilal.epizy.com/mirufuvurebaw.pdfIn PDF document text
    • http://makatorujiru.rf.gd/peak_performance_vinterjacka_barn_rea.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/sexoxazenowevelaji.pdfIn PDF document text
    • http://soromerib.epizy.com/buy_scrub_uniforms_online.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_off0000e5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DA 5448 bytes
SHA-256: f8fe49dabde33a0d17cbad2c086f8f3a435dc4332b23c4dc9b26c7a892061f4c
font_01_sfnt_off0000f875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF875 10388 bytes
SHA-256: 5ce306c9c9361567402f80ae10aff3e3a46d10fc040017a005dbc708d1f27d66