Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9290b01847e1997…

MALICIOUS

PDF

76.7 KB Created: 2021-06-14 10:10:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c26316d5b91a79c36243fdc92082d2a5 SHA-1: 7a9aa7c64defef2a03479f9ae94f08b728b6550a SHA-256: f9290b01847e19976f83c3ca588294608c26e64673f5db6dbc91460f6e7b99b5
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a movie streaming service. This URL is likely used for phishing or to serve further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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
  • 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://inwebjor.ru/pbw?utm_term=the+blackkklansman+123movies
    • https://static.s123-cdn-static.com/uploads/4471692/normal_5fe33a8a551f7.pdf
    • https://cdn-cms.f-static.net/uploads/4367914/normal_602f2c3a3a23e.pdf
    • https://cdn-cms.f-static.net/uploads/4454167/normal_603bf05c9d4f4.pdf
    • https://static.s123-cdn-static-d.com/uploads/4409405/normal_60afe8bbca626.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fezosubi.pbworks.com/w/file/fetch/145204950/10960499455.pdf
    • http://gediripu.pbworks.com/w/file/fetch/145114953/2pac_good_die_young_mp3.pdf
    • https://uploads.strikinglycdn.com/files/050fc017-9982-4597-97a7-b8248d02b55a/32573801419.pdf
    • https://uploads.strikinglycdn.com/files/c4d65fbb-cd59-4408-8bca-80b5343880d9/66367053779.pdf
    • https://uploads.strikinglycdn.com/files/812521a1-da75-4edd-8c47-25d6fcab4253/words_to_describe_rainforest_trees_per_acre.pdf
    • https://uploads.strikinglycdn.com/files/5068e24f-eda3-4950-b002-4d570999b4b6/elementos_de_una_revista_escolar.pdf
    • https://uploads.strikinglycdn.com/files/182ea022-551d-48a6-8a62-dbc582c344a9/how_to_reset_relion_prime_meter.pdf
    • https://uploads.strikinglycdn.com/files/95a7bd03-d277-4cd2-add4-4ac1ff1f8e5e/how_do_you_start_a_paragraph.pdf
    • https://uploads.strikinglycdn.com/files/856afd03-e8d1-4489-9645-58488aa2cd5d/what_does_the_bible_say_about_isolation.pdf
    • http://lekuzax.pbworks.com/f/fojevekemetenusurideko.pdf
    • https://uploads.strikinglycdn.com/files/dc390940-a0e6-4801-9cf0-85ebc4235c35/how_to_reprogram_garage_remote_liftmaster.pdf
    • https://uploads.strikinglycdn.com/files/bb6a98aa-6c75-4b15-8f07-96beeea8448b/41828991857.pdf
    • https://uploads.strikinglycdn.com/files/ff69c1bd-3d25-41f8-ae9b-96f5832b0bbf/nakivolakuri.pdf
    • https://uploads.strikinglycdn.com/files/a004be15-8baa-4544-b3ce-eafb6bfd5757/how_to_use_a_seamstress_sewing_machine_for_beginners.pdf
    • http://foziwedugumu.pbworks.com/f/pattern_worksheet_6th_grade.pdf
    • https://uploads.strikinglycdn.com/files/11acf98f-48bb-4565-bc90-f8628aadcffd/encyclopedia_britannica_color_full_free_download.pdf
    • https://uploads.strikinglycdn.com/files/f4757c48-f747-4a94-b9a2-4464dd8f1d48/exercice_corrig_circuit_en_serie_et_en_derivation_5eme.pdf
    • https://uploads.strikinglycdn.com/files/4ccd31db-df90-4b09-9968-eedc649ea078/tinufubexoxetejoxevaf.pdf
    • http://difusowafid.pbworks.com/f/okay_backhouse_mike_piano_sheet_music.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8a7.bin
fc2f2a913762634e8c7110620a81ed7789a8e3aae94e16c9b5255b04858cf3ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A7 5504 bytes
font_01_sfnt_off0000fb49.bin
1452c3e624fa2292de9db2ce7187b86cc440e6bdcbe430869fd1ffd9097ac4b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB49 12752 bytes

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