Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d43da9bc861e3f9…

MALICIOUS

PDF

293.8 KB Created: 2021-01-27 09:58:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 716de88de4b26128fd2dadeb217662a1 SHA-1: 5b96da1b843e85160434b0daa191efcec082ef4d SHA-256: 6d43da9bc861e3f96f0ea47a52ff1e6e4cac0aaf779d73ed4f02234d2fc14375
104 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and an external URI pointing to 'https://jacksth.ru/123?utm_term=frieza+final+form+dragon+ball+super'. ClamAV detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', indicating a phishing or trojanized document. The embedded JavaScript likely facilitates the redirection or execution of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9359

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=frieza+final+form+dragon+ball+super PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383170/normal_5fcc00ab2ab12.pdfIn PDF document text
    • http://nugidaga.22web.org/bldc_motor_specifications.pdfIn PDF document text
    • http://bubiwikozexamo.iblogger.org/durable_medical_power_of_attorney_form_florida.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463807/normal_5fe1215cc58b4.pdfIn PDF document text
    • http://wodunobogigav.22web.org/access_documents_in_google_sheets.pdfIn PDF document text
    • http://fanogizakelime.iblogger.org/72938534151.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422133/normal_5fcdfecea987d.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://xixovunutev.epizy.com/govetabonobolon.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/kotolewilus.pdfIn PDF document text
    • http://xuxegukazo.rf.gd/career_action_plan_template.pdfIn PDF document text
    • http://zuluvegutadetu.epizy.com/borgholm_modern_upholstered_storage_platform_bed.pdfIn PDF document text
    • http://bemijeranokawu.epizy.com/citroen_c5_2008_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/employee_final_written_warning_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/72939842233.pdfIn PDF document text
    • http://siwojanapav.epizy.com/92265170626.pdfIn PDF document text
    • http://nawatelobuj.rf.gd/modijesatorivizidebeki.pdfIn PDF document text
    • http://zudozam.epizy.com/bejeweled_free_play_offline.pdfIn PDF document text
    • http://gitogopafo.epizy.com/jodijowekiperigavodo.pdfIn PDF document text
    • http://vodobugatusexa.epizy.com/world_geography_quiz_answers.pdfIn PDF document text
    • http://dimonejoxu.rf.gd/hubspot_certification_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/33053615836.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/boss_engira_baskaran_tamil_movie_free.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42DA2 3968 bytes
SHA-256: 7a9ed836c80149c52fd919d63afdf230b099a3ae3fd4305c565c55a10fafc3de
font_01_sfnt_off00043bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BB1 5308 bytes
SHA-256: b4c0e66d8d4365ff2e6e65d28f92b1f9cce109e81686f9b79b4a61ca42c7fd8f
font_02_sfnt_off00044da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44DA1 13460 bytes
SHA-256: b53fd406adf405c40c7408b04bcd56826606d0538a84a1e878d40c45d258ffe5
font_03_sfnt_off00047784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47784 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3