Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a53dc1fd90a7a58…

MALICIOUS

PDF

70.7 KB Created: 2020-12-10 15:53:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: a238ae2e24b1c3f179c39365e7c20291 SHA-1: b0e27eb3215014c9c5dbec0c32e82439cf4d9db9 SHA-256: 8a53dc1fd90a7a580ede0e7f83d5b389ee62b8e92a0ae275df360105b10a6507
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, which is likely part of a phishing or social engineering attempt. The document body, though heavily obfuscated, suggests a lure related to official forms, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

Heuristics 3

  • 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
  • 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://traffnew.ru/wb?keyword=application%20forms%20for%20unabridged%20birth%20certificate PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475859/normal_5fc6c1dedfa55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426425/normal_5fd02b65687aa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf48e44e98326c02068657/1606371557858/vanity_fair_gift_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe003feaf37e3b646236c0/1606287426291/vitemubovelenaxev.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d1c52cf09257bd84ca4b/t/5fc53273eaf37e3b6444bd8c/1606759029497/dutch_wooden_shoes_for_sale.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2a8aeaf37e3b64656699/1606298253056/heathers_the_musical_full_script_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/christian_songs_music_ringtone.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6c096c89b935f15dd7edf/t/5fd17f9199fe644e8a5742c1/1607565201824/88806245190.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc006d0104edf1d777bfbd4/t/5fc0ddbc5147b1480453bc05/1606475196586/alchemist_survey_vvardenfell.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09428f29-122e-420b-ae09-2c8d3df3bf0d/episode_free_gems_no_survey_or_activation_code.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52c2a2e537a05ef24d382/t/5fd072a46cbf29106bfce933/1607496357734/horizon_forbidden_west_ps5_upgrade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64e6c2e34347c70694bb4/t/5fc6ea1a1d106d256bb444aa/1606871579407/85710509391.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c77d2d55-2b98-4c9a-a62b-214f369a8de6/project_zomboid_electrical.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e8305687f52b6b812c21/t/5fcbc999393ce473563cbd6b/1607190937100/multiplayer_online_chess_game_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/quantification_theory_in_logic.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBE 5700 bytes
SHA-256: a1d681ce2588543614626fba7c3e8c9fb40631e63f47d0ed1459f487e10caf66