Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0ff1f297743f6d…

MALICIOUS

PDF

74.2 KB Created: 2021-01-24 22:06:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 5730a62a1650a14a551181d8a67b8670 SHA-1: 3b49f3ec24e750eeea4ea954b19e65a1bbdf79d0 SHA-256: 2d0ff1f297743f6d9371dabd37720b929e68a1951bf945181854f978ff466483
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'passive insufficiency example'.

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://leonvi.ru/123?utm_term=passive+insufficiency+example PDF link annotation
    • https://cdn.sqhk.co/pomorezolo/1HHGgZo/final_fantasy_games_playable_on_ps4.pdfIn PDF document text
    • http://fruitnaturs.space/bofowotifulazixpgafy.pdfIn PDF document text
    • http://bluebadge-support.com/dragon_mania_legends_elements_guidejviox.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/ihia7ji/othello_game_target.pdfIn PDF document text
    • http://vosalax.22web.org/54457758235.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/wgedKig/k12_reading_comprehension_grade_1.pdfIn PDF document text
    • http://nofosofeze.iblogger.org/walt_disney_world_theme_park_maps.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/YicaeKO/guilty_crown_opening_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kaseborodemo.rf.gd/excel_spreadsheet_vehicle_log_book.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/cvs_caremark_medicare_appeal_form.pdfIn PDF document text
    • http://fekovip.rf.gd/36527178576.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/amway_global_entrepreneurship_report_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/formal_attire_crossword_clue.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/34590971698.pdfIn PDF document text
    • http://nifibomagogov.rf.gd/fafewipod.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/c_docstring_format.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/lobabofogoximimar.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_off0000e558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE558 5296 bytes
SHA-256: 2e06e01f5f2afaf53044f461dfb8f1692712ac45f5b7cad7b9bc06c92c018124
font_01_sfnt_off0000f766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF766 10716 bytes
SHA-256: 75e5d4fe2d928df14885c2f2dd32bc99ba158e48bb879485d40aa51abfcfa6c7

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