Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd06f563394d4c7a…

MALICIOUS

PDF

103.4 KB Created: 2021-04-04 11:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 5750e46f0e950d4312feb42a724d1690 SHA-1: 08b4d4db228a1ea4175cc6c34843556ffb3f741e SHA-256: cd06f563394d4c7a8cfbc7dea6e5806687021e215cde1d3f3bdb805e19e3a1e3
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, some of which are unknown or lead to suspicious PDF files, suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://cdn.sqhk.co/nowavutu/djbsUif/rolobilugodokafuvizol.pdf In PDF document text
    • https://cdn.sqhk.co/kogoruzojif/gdeigHq/evacuate_definition_the_wire.pdfIn PDF document text
    • https://cdn.sqhk.co/buruvalufe/4Qkjgkt/dulijakoridudi.pdfIn PDF document text
    • https://cdn.sqhk.co/legusovej/ogghiek/barbie_dreamhouse_adventure_game_video.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/aghghhj/99216186692.pdfIn PDF document text
    • http://nibewubixela.getenjoyment.net/en_que_ao_se_descubrio_el_modelo_atomico_de_dirac_jordan.pdfIn PDF document text
    • http://duvejiwuxikon.getenjoyment.net/eyelash_extension_training_course_manchester.pdfIn PDF document text
    • http://sowoxapexemex.sportsontheweb.net/super_mario_bros_2_nes_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/n4t4wXRn-MA/wb?keyword=storm%20giants%20thunder%20pdfPDF link annotation
    • https://s3.amazonaws.com/faduxodiwo/bunowejumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48b67027-2678-404c-a4fb-333b760b5eeb/junoguwagozog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09dd0d9-6c8c-4db6-8fb6-03b6971c0c0f/introductory_mathematical_analysis_13th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76359a7c-f8e5-467b-b45c-aa3defa7bd2b/242446802.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/rojupukozonubukitukodu.pdfIn PDF document text
    • http://zijedan.atwebpages.com/apa_itu_arbitrase.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66186f66-5705-4482-8346-8abf8205bf44/duzadijutu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8fa9e52-905b-47c1-b83c-5bb54c208ec3/nanostation_loco_m2_setup_bridge.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/ashes_remain_without_you_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/758adc62-fbde-48cf-b923-86162702c310/logitech_k330_driver_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8025e7d-5237-4ac6-81c9-62e114f72ece/90318982517.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/hidden_figures_printable_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02b5a748-3dc5-46a8-8870-9d02898f68eb/6315940607.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4026e798-f89a-4861-ac82-2356f2baa015/par_quoi_remplacer_la_mazena_dans_une_recette.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c85f003e-2d98-4f0e-a462-61bc67afef56/how_to_install_kicker_hideaway.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/beretta_92fs_compact_guide_rod.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_off000151b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151B1 5524 bytes
SHA-256: 3f2520eeb253c89287ecc7b2f77fbc790d196c850171103a58718e7ba93039fa
font_01_sfnt_off0001644c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1644C 12852 bytes
SHA-256: 0e987d0afa761ea5f2726348cb7419f30e0860eb0b7b792fde79d08b7a0a9f35

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