Malicious PDF — malware analysis report

Static analysis result for SHA-256 91705a68726354a7…

MALICIOUS

PDF

70.2 KB Created: 2021-02-15 22:03:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 532928d19a2937bf019c214460684db5 SHA-1: b0d382e5aeef0e90609876e862068ce3bd6f94b4 SHA-256: 91705a68726354a7673533888c6aada2e53d05a7de1bfc4037ea06e1ae33a403
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=fortnite+build+simulator+pc PDF link annotation
    • http://winokuzovew.iblogger.org/colors_worksheets_for_preschool.pdfIn PDF document text
    • http://zipujesilan.22web.org/premabhishekam_songs_sen_songs.pdfIn PDF document text
    • https://pimakesoxokozo.weebly.com/uploads/1/3/4/0/134041299/nilunafuxalu_dabiruzutuneb_jowewuz.pdfIn PDF document text
    • http://wegutamozeji.iblogger.org/19643863181.pdfIn PDF document text
    • http://fafaviga.iblogger.org/77904409684.pdfIn PDF document text
    • https://bodokevusigow.weebly.com/uploads/1/3/2/7/132740435/watugipaxunuronuzek.pdfIn PDF document text
    • https://turudesufexo.weebly.com/uploads/1/3/4/1/134131379/1474547.pdfIn PDF document text
    • https://xijukuto.weebly.com/uploads/1/3/4/3/134354051/wogebawesived-vulibo.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/liguwubore/psp_hd_for_emulator_games_apk.pdfIn PDF document text
    • http://mijugavagi.epizy.com/aashiqui_2_mp4_songs_free_2013.pdfIn PDF document text
    • http://tegumebedizeso.epizy.com/desefenivotutomisawox.pdfIn PDF document text
    • http://korobuvorudetiv.rf.gd/32409050096.pdfIn PDF document text
    • http://bolapapuziku.epizy.com/chunar_song_djjohal.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/59156565019.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/kaizen_event_planner_template.pdfIn PDF document text
    • http://lemijafuw.epizy.com/ap_calculus_bc_sample_examination_i_answers.pdfIn PDF document text
    • http://resaruxowepu.epizy.com/59389641729.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_off0000d779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD779 5312 bytes
SHA-256: 9ffd380f9697e58fc71248e80caf4c921bdb17b790c8db3e6458f4607e7458c4
font_01_sfnt_off0000e96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96A 10128 bytes
SHA-256: fad368213a969c3b892a14dc48fe2b307e249ffbc72ed6608f61290c91288a5c