Malicious PDF — malware analysis report

Static analysis result for SHA-256 606a34c98765a32d…

MALICIOUS

PDF

77.8 KB Created: 2021-03-10 06:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c946ec663b601e379afc6b0aabe5f707 SHA-1: 45232e5ac25ce7e436f265f589920afe3ed78c7e SHA-256: 606a34c98765a32dfeb36324897e9d86e838e31f4d0bd3744245a42eff6812a4
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV detection and an ML classifier. It contains an embedded URI pointing to 'resalured.ru', which is a strong indicator of malicious intent, likely for phishing or downloading further payloads. The PDF structure and embedded content suggest it's designed to trick users into visiting this external resource.

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://resalured.ru/123?utm_term=benim+hocam+yds+kitap+pdf PDF link annotation
    • http://lezeninimi.medianewsonline.com/dogman_book_1.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajuwodaf/V7PgiHO/fractions_worksheets_year_6.pdfIn PDF document text
    • https://cdn.sqhk.co/gasubapo/dnjgage/the_best_radiohead_songs_of_all_time.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_602550e10032b.pdfIn PDF document text
    • https://cdn.sqhk.co/woferomot/jdXeoxW/neon_hockey_ice_and_glow_hockey_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/hjgiijb/electricity_bill_calculation_formula_pakistan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411493/normal_600dff29118c3.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/hPBVzyA/wood_project_ideas_diy.pdfIn PDF document text
    • http://jubigale.scienceontheweb.net/vazaparire.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/jehehhc/raid_dungeon_guild_of_heroes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7ce8a4a3-8911-43bb-b4e6-f12b55ca8369/alpha_urdu_word_meaning_in_sindhi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23e00c54-afa6-4952-a936-ce3e3389b876/company_of_heroes_2_cheats_trainer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a8dedd-d0d9-44ac-8d09-55165d0b3a7f/zavoluwizopurofof.pdfIn PDF document text
    • http://vewawisu.onlinewebshop.net/which_meteor_is_heading_for_earth_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b8b7048-0ab1-48d1-988a-d9de3713725d/93866578443.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31d5f881-b0c7-41d1-a05b-a12aded53409/69014657701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75510d7f-68cd-4cdb-8907-65faa1250317/killer_instinct_super_nintendo_moves_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a2ded0f-3b11-4979-9293-d4d7712aa10f/can_you_import_files_into_garageband.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C5 5272 bytes
SHA-256: 050bc021391fc71e7c26a451a75280941c0b1e6cca117834d1fa725142d9f05d
font_01_sfnt_off0000f487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF487 11976 bytes
SHA-256: 7d3a9fd5601579aa670fcac478f249e85acc310616ea8625655a5611c300203a
font_02_sfnt_off00011a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A10 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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