Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f590381ed6c5ec…

MALICIOUS

PDF

84.0 KB Created: 2021-03-06 22:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: c45a267f35a20940e46bca75bc2a6101 SHA-1: eec347c07e7e0a4559e688370f6c000bbcd790fe SHA-256: 00f590381ed6c5ec7f819a9430ad91ea2696edaf89eee19e7d4edd4ed9477438
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL pointing to 'vilenefex.ru', which is likely part of the phishing lure. The document body, though heavily obfuscated, suggests a theme related to an award or notification, intended to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://vilenefex.ru/award?keyword=lonely+planet+japan+2021 PDF link annotation
    • https://cdn.sqhk.co/parabeset/Vgfujdj/piperaxotifoxilezota.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/haXABFX/plus_size_color_block_dress_black_and_white.pdfIn PDF document text
    • https://cdn.sqhk.co/duwenaxiseve/hbidxig/marshmello_piano_tiles_dj_descargar.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/jhicghb/magujipewovot.pdfIn PDF document text
    • https://cdn.sqhk.co/wepigosogo/ieha0K3/la_senza_apple_wallet.pdfIn PDF document text
    • https://cdn.sqhk.co/xudekutof/gdjejga/76701551549.pdfIn PDF document text
    • https://cdn.sqhk.co/xufojidaju/YadEhbN/27970532786.pdfIn PDF document text
    • https://cdn.sqhk.co/solaxutom/jfdjcpS/cardboard_cat_house_target.pdfIn PDF document text
    • https://cdn.sqhk.co/xumifutave/ZPgfDha/robot_ico_robot_run_and_jump.pdfIn PDF document text
    • https://cdn.sqhk.co/repejuvovod/igja8he/halloween_island_animal_crossing_dream_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/je1ihZs/vetapomiwufipixigerobi.pdfIn PDF document text
    • https://cdn.sqhk.co/towevefizub/1gemih4/fonovenutetidaduxusixoru.pdfIn PDF document text
    • https://cdn.sqhk.co/bimepefav/bja2Xif/sesusawabonexozidoduga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d57ed15-b887-4e1d-97f3-77cef4f5677f/gelozibiloke.pdfIn PDF document text
    • http://xupafokivudaked.rf.gd/gonew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3130e1-e63c-4157-99f4-eb921368bdee/why_is_my_transmission_not_engaging.pdfIn PDF document text
    • http://movutep.rf.gd/zexuneredevidepuvitegilub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d382c8dc-dfac-4e66-8de9-d9fe94714c12/how_to_write_a_synopsis_for_a_graphic_novel.pdfIn PDF document text
    • http://feduneve.rf.gd/10692830109.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/bella_vista_primary_school_uniform.pdfIn PDF document text
    • http://favekagopu.epizy.com/faxati.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/easy_worksheets_for_esl_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/vejumelenonebarevoj.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF848 4984 bytes
SHA-256: d186d2be59c7a7949071e7ba8b5488993358034496d5320de4d63c76aa3e19d8
font_01_sfnt_off00010964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10964 10444 bytes
SHA-256: 4aa0fab3e1d53e54676cdf8555768e1fc14380eda5ac2be95d9d57bcf5c7c10d
font_02_sfnt_off00012d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D53 16168 bytes
SHA-256: 8c1e3298cb301b6aa2c2aeff0a89e1cafee6626e56d5ffa98ad52a7598c40df9

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