Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9d66e1535741bb…

MALICIOUS

PDF

76.0 KB Created: 2021-02-18 14:46:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 63af6f6907e4d62fbc739408cdeace46 SHA-1: 817cf0f8ce59be32ab2cf5432e5e7a390a12adf4 SHA-256: fe9d66e1535741bb8517af8d9ac2631d7077da26e80f6f24bb69201a5502b2ac
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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=frases+filosoficas+sobre+el+tiempo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479923/normal_6024291e3fa1a.pdfIn PDF document text
    • https://cdn.sqhk.co/rodesedaded/ABggAfD/xcom_enemy_unknown_cheats_pc_steam.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/jUgejhH/snapchat_streak_emojis_change.pdfIn PDF document text
    • https://cdn.sqhk.co/verikiweneza/ticZEnf/texas_dynamix_gymnastics.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/5ljcChe/top_100_bollywood_songs_download_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/vipikunowi/jjhaggq/falling_balls_after_effects.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/Fidicgc/celebrity_cruise_lines_stock_symbol.pdfIn PDF document text
    • https://cdn.sqhk.co/mugolino/jeja3ja/upcoming_fighting_games_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410418/normal_5ff9647a4790b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381098/normal_5fd266b939a65.pdfIn PDF document text
    • https://cdn.sqhk.co/xesagomi/ihcNji3/likee_logo_image.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tutufot.rf.gd/ankusham_old_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/venuzupesatiza.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/itunes_installer_exe.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/bs_player_pro_1._31._197_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/20505651328.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/adventist_health_study_2.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_off0000eb55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB55 5256 bytes
SHA-256: b26421674a2be377321f056f0926b92f92f3fd9ba136901c699be25c5f22fae6
font_01_sfnt_off0000fd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1C 11196 bytes
SHA-256: 00ad5b4f5e56aaf9393fb8f612d627389c73bebc4a72b1805f86dedb14643286