Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96773dc6c46021d…

MALICIOUS

PDF

67.1 KB Created: 2021-02-21 15:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0a7a0580e0c542267c75f937089ee7bb SHA-1: eb63aaa8d3205c7fb8f1afb2dafb702242773232 SHA-256: e96773dc6c46021d9d80ec51cb37988912b3f1556c8422e9d03e6e6dfbc87e1a
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains an embedded URL pointing to 'jacksth.ru', which is likely used to redirect the user to a malicious site or download a payload. The document body, though partially corrupted, contains text related to a product, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/123?utm_term=glamglow+bubble+sheet+mask+6+pack PDF link annotation
    • https://cdn.sqhk.co/vumusokutil/Ejf7aib/exploding_kittens_playing_cards.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/jfgjoIQ/xelewuzomugis.pdfIn PDF document text
    • https://cdn.sqhk.co/jefigujaxev/jgBaRfN/unnatural_selection_book.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/ibhhibk/hover_1_kart_and_all_star_hoverboard_combo.pdfIn PDF document text
    • https://cdn.sqhk.co/jesovolavig/Jienjhx/10627530125.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/heij0gg/1169269549.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/ieVLjid/soap_loaf_cutter_diy.pdfIn PDF document text
    • https://cdn.sqhk.co/bemoranoz/oRuXica/road_trip_essentials_for_kids.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/ehdhdji/hungry_shark_evolution_map_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/bopibege/aihiYjd/cruise_lines_international_association_news.pdfIn PDF document text
    • https://cdn.sqhk.co/kuderoxuz/YawAEid/dadole.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvivemu/ijlzZia/alan_walker_faded_piano_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/ronelejibir/4ig4Xhb/final_accounts_balance_sheet_format.pdfIn PDF document text
    • https://cdn.sqhk.co/riketumes/gcvijgj/tabaxemejuxuvaban.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/nuxomigo/99366841818.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/battle._net_is_slow.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/sivime.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/why_does_my_microwave_have_no_power.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/free_bridal_luncheon_invitations_templates.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_off0000c952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC952 5732 bytes
SHA-256: ff053231a85aa3c50169d7847e7ccd7bf0b785b05b648fb864f5ea0ac0b9fe30
font_01_sfnt_off0000dcca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCA 10128 bytes
SHA-256: 87b8e5ae4b329c07f37d7d45a1b7d9945bd64260e902f6337a92717fcb653bf9

Open this report in the interactive analyzer, or submit your own file for analysis.