Malicious PDF — malware analysis report

Static analysis result for SHA-256 8483d1133133e466…

MALICIOUS

PDF

116.6 KB Created: 2021-02-15 09:54:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: cac361ac6ea1637e24caf18fcbb124c2 SHA-1: 234d2a523a0c7f0e542e3bf8dcbc550dae054260 SHA-256: 8483d1133133e4661182c47e5417a04186c5a69276369f94cdb5ade19d629dda
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL, identified as a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is likely used to redirect the user to a phishing site or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=pioneer+avic+z140bh+bluetooth+pairing PDF link annotation
    • https://cdn.sqhk.co/gemadaruvow/Soihiir/1776967182.pdfIn PDF document text
    • https://cdn.sqhk.co/zisujidixa/czMjfgf/frog_simulator_city_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/difiBqV/game_hit_zone_dead_city_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/jhbXhiG/73062857914.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/aFjhhb4/xazizebawaruvuxosonaroneg.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/iLPvjQa/lamadidalunokomonafipo.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/jghdRje/tubal_ligation_reversal_dr_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/hhWhbQw/maze_in_mason_city_iowa.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/nufidibodudulad/6875957494.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/android._graphics._bitmap_save_to_file.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/21694675319.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/hec_attestation_authority_letter_format.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/hellfire_citadel_solo_mythic_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/ivoclar_bleach_shade_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/netflix_app_for_pc_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/yes_or_no_answer_tarot.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/90781078101.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/dividing_fractions_and_whole_numbers_worksheet.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_off00018469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18469 5548 bytes
SHA-256: 0464eeff448f1a0043c8c94b663754f6ad7c1b77b8b72df4a7bd4c964c932454
font_01_sfnt_off00019758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19758 14384 bytes
SHA-256: 5ae8e6ab3c60aa038234bb1ffdffc705e39b07d007d3bb9287817cc6e70d0a08

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