Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3976a74ad70887…

MALICIOUS

PDF

73.6 KB Created: 2021-03-20 19:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f56c8a87cf52833b458961ffd383f108 SHA-1: b7140744f6b7129be6b6fc82be1958b4136219a7 SHA-256: 0e3976a74ad7088778901ac8a8b39d178ba027a3ed8ba9ee583d9337c1daa4d7
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URL pointing to a suspicious domain, which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'bubble trouble unblocked hacked' and authoring application details, suggesting a lure to a potentially compromised or malicious resource.

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://midufefew.ru/wix?keyword=bubble+trouble+unblocked+hacked
    • http://bufezipuduxev.mywebcommunity.org/39817797324.pdf
    • http://bibivire.mygamesonline.org/que_es_la_etica_segun_autores.pdf
    • https://derovidexaw.weebly.com/uploads/1/3/1/3/131382126/zimixafokudufixepuda.pdf
    • https://rezusoroporinon.weebly.com/uploads/1/3/2/6/132695427/c7bc21b992c259f.pdf
    • http://sufulilutidake.mypressonline.com/wuvoxujigutatolijebiki.pdf
    • http://figejewumoposes.getenjoyment.net/working_of_automated_teller_machine.pdf
    • http://nabavawuzafurur.mygamesonline.org/how_to_clean_shark_vacuum_filter_lift_away.pdf
    • https://senugosuka.weebly.com/uploads/1/3/1/4/131454109/79abd2f.pdf
    • http://mebevevi.mywebcommunity.org/2011_hyundai_sonata_2.0t_owners_manual.pdf
    • https://guwakeba.weebly.com/uploads/1/3/4/5/134597639/d316904.pdf
    • http://zoxodur.sportsontheweb.net/ipazzport_mini_wireless_keyboard_stopped_working.pdf
    • http://rejorevubirobu.sportsontheweb.net/section_34_of_arbitration_and_conciliation_act.pdf
    • https://topipanonotege.weebly.com/uploads/1/3/4/6/134679812/tanavifotu-sazen-perutesi.pdf
    • http://parazepurafeza.medianewsonline.com/2_step_equations_worksheet_8th_grade.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://butorinowu.myartsonline.com/fender_mustang_3_manual.pdf
    • https://uploads.strikinglycdn.com/files/32b97993-b1a0-4096-9683-21c751b4e9dc/safety_siren_pro_series_3_calibration.pdf
    • https://uploads.strikinglycdn.com/files/fe03e33e-852f-4984-ab52-ec28dbedcc88/pumasopibagaxaf.pdf
    • http://zogadawedalifap.onlinewebshop.net/40101358177.pdf
    • https://uploads.strikinglycdn.com/files/bc1d9376-75b9-4268-9e9c-eae40d63faa7/star_wars_blueprint_vinyl_peelable_wallpaper.pdf
    • https://uploads.strikinglycdn.com/files/93835e90-dd7d-4814-bd37-1063bfc3e130/dell_7010_sff_motherboard_size.pdf
    • http://xutenujute.myartsonline.com/what_does_moultrie_mean.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d447.bin
6a901b3aecff0000cc64fa30ca29d8e2b50ee1066a82dbcfe398ade519f76270		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD447 4936 bytes
font_01_sfnt_off0000e4fd.bin
39c9b584979a690e2d0ec1bb84bced2891299b45f7736abc3d7975b764cdb8e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FD 11084 bytes
font_02_sfnt_off0001094a.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1094A 4324 bytes

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