Malicious PDF — malware analysis report

Static analysis result for SHA-256 64c015970024df61…

MALICIOUS

PDF

79.8 KB Created: 2021-03-29 23:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cdec0b8afa0881c4795d60999ad8eeb SHA-1: 9b9d385f913a7163d6f4152a9a9e1370e66e6c03 SHA-256: 64c015970024df617bdb89cd7b4d8ee57b5e86f334a825fa54ece0346b332c3e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a domain commonly associated with phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malware by posing as a legitimate user manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/strik?utm_term=cybex+arc+trainer+user+manual
    • https://static.s123-cdn-static.com/uploads/4369486/normal_5feeaef73fc1d.pdf
    • https://cdn.sqhk.co/kisasizaro/Ijjiggj/greatest_dance_hits_of_the_90s_download.pdf
    • http://sevagawos.getenjoyment.net/beretta_m9_22lr_holster.pdf
    • https://cdn.sqhk.co/varipivokil/apmF7ib/40431256652.pdf
    • http://stavki-na-sport.site/88436066612sgpf7.pdf
    • https://cdn-cms.f-static.net/uploads/4470380/normal_60390d61571aa.pdf
    • https://cdn-cms.f-static.net/uploads/4459788/normal_6047fb696031e.pdf
    • https://cdn-cms.f-static.net/uploads/4450439/normal_60499396a740f.pdf
    • http://zuvels.xyz/wifusotifinnrqcg.pdf
    • http://xobilosusi.sportsontheweb.net/53347935585.pdf
    • http://jsexj.fun/boss_gt_1000_v3_reviewwzbmo.pdf
    • http://mafejaruvoje.sportsontheweb.net/blender_3d_incredible_machines_download.pdf
    • http://nuvagefo.medianewsonline.com/barton_fink_screenplay.pdf
    • http://termometr-medikal.site/mitutoyo_manual_cmm_priceejo5i.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/687faaf6-63e8-42ef-893a-2ab2e5ab3dfe/daniel_tigers_neighborhood_mad_at_the_crayon_factory_mad_at_school.pdf
    • https://uploads.strikinglycdn.com/files/b5ec2536-4d5f-46dc-8633-74f0c0748b1f/suunto_cobra_3_battery_replacement.pdf
    • https://uploads.strikinglycdn.com/files/f2dec7b1-7c04-499c-82b1-c3061480aa2d/the_paper_menagerie_main_characters.pdf
    • https://uploads.strikinglycdn.com/files/de2babda-3abc-4798-a194-6691a878b985/music_word_search_free_printable.pdf
    • https://uploads.strikinglycdn.com/files/a1e45a92-c056-4c54-b1b7-e540c175b2b0/vomovimup.pdf
    • https://uploads.strikinglycdn.com/files/0d168b09-e3ec-4444-ad51-5080dd6977af/91361143257.pdf
    • http://timagugovoxo.onlinewebshop.net/cal_state_long_beach_map.pdf
    • https://uploads.strikinglycdn.com/files/0d1c808a-bcbc-475f-ab35-518b7ca1d543/4429974138.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_off0000faee.bin
d6f57a485fa741116e45f2ecd9c4906431cbff3d64dcd389d4366a28b5739cf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEE 5160 bytes
font_01_sfnt_off00010c6f.bin
909dbafbd032e23874a752dd8fbb7076b6f6a1e369fc338a3eb6bf84b56e40b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6F 11292 bytes

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