Malicious PDF — malware analysis report

Static analysis result for SHA-256 259f97f2fdaff396…

MALICIOUS

PDF

70.6 KB Created: 2021-02-22 07:06:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cb1b0d17143d9debe2c18a50c470ee12 SHA-1: b486f06428ea055e78f06e5eb6d54f918b611222 SHA-256: 259f97f2fdaff3968ed13959f406ca4343a18a3a95e7d5bad83d86c4470afbf2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=yale+assure+lock+reset PDF link annotation
    • https://kofuwirobunugob.weebly.com/uploads/1/3/4/3/134318534/9914472.pdfIn PDF document text
    • https://fanejutasoja.weebly.com/uploads/1/3/5/3/135399707/rakagixamaka-gadexisa.pdfIn PDF document text
    • http://bewelaxoludiw.22web.org/24913629069.pdfIn PDF document text
    • http://energierecrute-emplois.com/fagekebonowukawupupojomkbyz4.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/cyhbqxe/centipede_poisonous_dogs.pdfIn PDF document text
    • http://world-wild-shop.com/kazukadoputonamipmcw3l.pdfIn PDF document text
    • https://mizavujubamu.weebly.com/uploads/1/3/0/7/130775062/lumuwo.pdfIn PDF document text
    • http://helplnstagram-confirm.com/48389607695b6cat.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/cmgjSC2/short_stories_in_english_for_students.pdfIn PDF document text
    • http://orbitan.fun/agentes_capacitadores_externos_stpsip9mm.pdfIn PDF document text
    • http://sandwichhq.club/37869149650wdrph.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xotonibipined.rf.gd/bluesette_harmonica_sheet_music.pdfIn PDF document text
    • http://xedekig.rf.gd/midivamajajej.pdfIn PDF document text
    • http://safutid.epizy.com/the_homestead_act_of_1862_worksheet_answers.pdfIn PDF document text
    • http://fodabobaxuti.epizy.com/negeserulaw.pdfIn PDF document text
    • http://kuxogazixup.rf.gd/121069596.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_off0000daf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF8 4820 bytes
SHA-256: 0e16f64d18fd211246f76222911d7fe38716304fb2bf3c3d8a68008e87d49333
font_01_sfnt_off0000eb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB67 9972 bytes
SHA-256: c9e5c93786719632722fcdb454ab0fb554f2038700be852eb9df975a44b1fb1b