Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66424dff2876ff7…

MALICIOUS

PDF

92.4 KB Created: 2021-02-19 09:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 363ad41462f30d0cd680c11697ed4999 SHA-1: 31f267e2b0457f96652b71ed18e066d7a466cc9d SHA-256: d66424dff2876ff78f4060a171b02cee9f48848d53a617b9214e9e31f2e04780
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/123?utm_term=journey+to+the+center+of+the+earth+full+movie+in+hindi+dubbed+watch+online PDF link annotation
    • https://cdn.sqhk.co/mapetidul/hhgfoge/iihf_world_juniors_2017_canada_vs_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/budafitanu/ifpwFrW/secret_sms_forwarding_app_android.pdfIn PDF document text
    • https://cdn.sqhk.co/wedifedaguju/d1aiaEo/to_do_list_template_printable_cute.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470678/normal_5fe9c3f6a2520.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/bwjgicY/nekelewelivemenevolid.pdfIn PDF document text
    • https://cdn.sqhk.co/xogovofofi/gfauiaE/smashburger_hours_notre_dame.pdfIn PDF document text
    • https://cdn.sqhk.co/turaxulefa/ejgjaih/guess_the_movie_quiz_movie_night_school.pdfIn PDF document text
    • http://hurricane1.space/18396321823kca07.pdfIn PDF document text
    • https://cdn.sqhk.co/gukijenof/JoFIgfn/turbocharger_block_diagram.pdfIn PDF document text
    • https://cdn.sqhk.co/pixisuja/i75Vlie/supercar_game_drift_driving_simulator.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sujawusoxenum.rf.gd/kamoxudilatudakosuvodi.pdfIn PDF document text
    • http://filamejukak.epizy.com/pathfinder_familiar_archetypes_guide.pdfIn PDF document text
    • http://tokejavopif.rf.gd/formacion_de_enlace_peptidico_entre_aminoacidos.pdfIn PDF document text
    • http://duzunop.rf.gd/numerical_analysis_burden_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E8B 5348 bytes
SHA-256: 9a5d1d379718052f8bb421e8bdc4276e550ecbd6355e7bb9f044e28fff780952
font_01_sfnt_off000130a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130A7 10752 bytes
SHA-256: 0fd108c9ce50e1b9ed895f36275b10fb5e0c4ce555a262e47ca79e9f61d367ef
font_02_sfnt_off00015546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15546 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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