Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc1046f021bd33b…

MALICIOUS

PDF

70.9 KB Created: 2021-03-30 23:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0a3f4edcbcab5e238cec92f6f5c08981 SHA-1: 9f9783318e258de1f61359975e021598a3e384f3 SHA-256: 2bc1046f021bd33b5655da338c7eb493f5a1f6ca08f24a3733334c90d7930390
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 0.9993

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://druttle.ru/wix?keyword=anthem+book+test+answers PDF link annotation
    • https://bomupafevusoze.weebly.com/uploads/1/3/1/4/131407549/2210961.pdfIn PDF document text
    • https://kaxaratit.weebly.com/uploads/1/3/5/3/135383379/222598b8533.pdfIn PDF document text
    • http://baxagaxisatipa.22web.org/baptism_invitations_girl_template.pdfIn PDF document text
    • https://cdn.sqhk.co/mipijotom/Jjc6hjH/wesilofulobagegik.pdfIn PDF document text
    • https://cdn.sqhk.co/lopijikuvi/enDhjgi/xujoberudikizegusakinu.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/BgfChjV/lapeturapi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425238/normal_6003358d5f644.pdfIn PDF document text
    • https://buporinedo.weebly.com/uploads/1/3/4/0/134041533/565765f718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486193/normal_604db01cf0095.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/fofefetipe_sutubope_vejabiwuk_tuguriwefi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463034/normal_6050736749016.pdfIn PDF document text
    • https://cdn.sqhk.co/nixibaraje/0hilmif/vijes.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/zhgjdSd/retro_game_logo_maker.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pofijiserige.onlinewebshop.net/gebulesunimibajuf.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/alaska_airlines_safety_dance_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/equipment_preventive_maintenance_procedure_template.pdfIn PDF document text
    • http://vudunebavibag.epizy.com/curious_george_story.pdfIn PDF document text
    • http://zudagiropa.rf.gd/organic_chemistry_notes_for_jee_advanced.pdfIn PDF document text
    • http://wifofevowogak.onlinewebshop.net/b._tech_civil_engineering_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/taxoruxadavovisored.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/mogobilunojetuwumobezebaw.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/99645714632.pdfIn PDF document text
    • http://rejazimuperolik.rf.gd/arduino_buck_boost_converter.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_off0000d895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD895 5180 bytes
SHA-256: dfec8560f99699bc5c4fdc2bc67e6448949c6c8f88f18a37f0da6569612713b7
font_01_sfnt_off0000ea17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA17 10660 bytes
SHA-256: 2b13218c8b164bf512505c5dbeecd877c67855bb9fe27d739137851112b7e23f