Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80b8ef56d672520…

MALICIOUS

PDF

82.1 KB Created: 2021-03-06 04:48:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c840086ae5f9c74a0b6e383e8425e72f SHA-1: 98220f35813e862515b7bc7a8383bcf71eb4d404 SHA-256: b80b8ef56d67252051468ef10b32599429cfe31ff3d156651f5f2a93310d10a7
96 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, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains a URL that appears to be a lure related to 'emp jammers'. The presence of embedded URLs and the overall detection suggest the file is designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/123?utm_term=how+do+emp+jammers+work+on+slot+machines
    • https://cdn.sqhk.co/lutadamafe/fkggAgf/5257355817.pdf
    • http://dofujifeluradep.medianewsonline.com/761279639.pdf
    • http://voseboler.iblogger.org/dirupupujaxarawa.pdf
    • http://desekikimok.22web.org/weider_ultimate_body_works_bench_review.pdf
    • http://zanexipizuzog.iblogger.org/aarya_telugu_movie_video_songs.pdf
    • https://cdn.sqhk.co/navozaxezini/V2jjkjc/vuvofukevidirasor.pdf
    • https://cdn.sqhk.co/tajiwikiter/jiJ1hfR/tasedepuzuvuduzinil.pdf
    • http://faromobipon.22web.org/camera_raw_file_formats.pdf
    • https://cdn.sqhk.co/vuwonesi/cfgiibE/zero_gravity_runner_octane.pdf
    • http://vonexalux.sportsontheweb.net/widuwufo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/goveruduzewoxu/burilobidok.pdf
    • http://borinalujid.epizy.com/38914718193.pdf
    • http://biwosagamivi.myartsonline.com/20235435027.pdf
    • http://xivefasojag.epizy.com/zomolujofututodutoju.pdf
    • https://s3.amazonaws.com/suzujewa/36697531256.pdf
    • http://xewenofos.epizy.com/85886703867.pdf
    • http://nubijusumodas.rf.gd/which_is_the_best_electric_blanket_to_buy.pdf
    • https://s3.amazonaws.com/viwoxuz/34637148514.pdf
    • http://tejizikadojuni.epizy.com/der_feinschmecker_weinguide_2019.pdf
    • http://voboxixet.rf.gd/anthem_bcbs_virginia_151_form.pdf
    • http://kaloruligot.onlinewebshop.net/dyson_dc25_blocked_wand.pdf
    • http://tumapaluk.rf.gd/basic_mathematics_skills_worksheet.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_off000103a2.bin
184f92673d9de0751bdf2602e842899e27330c366bec711eeac03e0b496fa7fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103A2 5508 bytes
font_01_sfnt_off00011642.bin
378332549139055ee36fb88e9ee913507160c3d93f4cf32e2953de9a979ec162		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11642 10708 bytes

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