Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f06f5d18df6baf7…

MALICIOUS

PDF

76.7 KB Created: 2021-04-11 21:47:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7d4c5f55dc436e55a07ee20d61d57f51 SHA-1: cef5d697d0bcceefb095956a5b8b00da4dee7a58 SHA-256: 8f06f5d18df6baf70e20a1be21bf8b6830f97e9c079b1caf4e4976ff9eb5a1aa
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/strik?utm_term=dramatic+irony+in+romeo+and+juliet+act+4+scene+2 PDF link annotation
    • http://hookup666.site/90409980003o6uu8.pdfIn PDF document text
    • http://korecos.ru/how_to_use_a_430ex_ii_speedlitekp8nz.pdfIn PDF document text
    • http://instapriz365.online/90039361046fu3qz.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/SeEsiin/55723545005.pdfIn PDF document text
    • https://cdn.sqhk.co/xogodapap/Xhijggc/45668907655.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/affiche_publicitaire_exemple.pdfIn PDF document text
    • http://meetcabinets.xyz/11475591768p1jk7.pdfIn PDF document text
    • https://cdn.sqhk.co/purilusevike/aZgMBha/xabagexabi.pdfIn PDF document text
    • http://notdull-eng.online/freak_the_mighty_you_cant_judge_a_book_by_its_cover_quotesiv0ny.pdfIn PDF document text
    • http://predouche.xyz/hp_laserjet_pro_400_color_printer_m451dn_driver_windows_7tj2k7.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/GYbijia/34269789595.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/dudiwepu.pdfIn PDF document text
    • http://homeolimp.com/mercury_outboard_service_manual_indexo17xl.pdfIn PDF document text
    • http://edevletorg.com/73955409110hfhop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/zonukudozuvilipevot.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/66738693130.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/are_beats_by_dr_dre_worth_it.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/39208593947.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/does_my_head_look_big_in_this_read_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/choreiform_movement_disorder.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/gidafu.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/call_of_the_wild_conflict.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_off0000ec7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7E 5480 bytes
SHA-256: 1340cac59f5c3cc518455d988ef28b90eb838dc58fc89c070afa49ec8b8db8f5
font_01_sfnt_off0000ff29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF29 11300 bytes
SHA-256: 93abac710a3f0c5648c10c968a53f20e5caed70c5ab7e93cb6ea3bd59e2b51a5

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