Malicious PDF — malware analysis report

Static analysis result for SHA-256 13c4ac092835770e…

MALICIOUS

PDF

68.5 KB Created: 2021-02-18 19:50:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: fd332083faac9b3c6a121b61e44cbcbc SHA-1: 2c772565a2061262ed3dee41b30db8680ab87ed6 SHA-256: 13c4ac092835770e212cb25e21d3dae9ed56054ac6820e5d31644381b42a3f39
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that leads to a URL associated with downloading software, disguised as a game. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall context suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/strik?utm_term=download+primal+carnage+extinction+pc+free PDF link annotation
    • http://aires.fun/diesel_mens_belt_size_guideann2d.pdfIn PDF document text
    • http://all-system7.work/gaming_austria_guidepiub3.pdfIn PDF document text
    • http://copyrightnotice-ig.com/wefejejarutewixadak2hibh.pdfIn PDF document text
    • http://semengergel.ru/jantar_mantar_jaipur_audio_guidekl4bz.pdfIn PDF document text
    • http://itanto.space/12392660989c79jz.pdfIn PDF document text
    • http://sosepojidoduxad.iblogger.org/1702600158.pdfIn PDF document text
    • https://cdn.sqhk.co/bujiwamovul/VuGZhdP/kuvusavuluzova.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/tesasubawalozan/fingerprints_101_answer_key.pdfIn PDF document text
    • http://sifusavukaga.rf.gd/82758865725.pdfIn PDF document text
    • http://rifusurevaz.rf.gd/annual_credit_report_equifax_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/honey_bun_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/gta_sa_cheat_apk_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/79505085779.pdfIn PDF document text
    • http://pogebikaku.epizy.com/journal_about_reading_descriptive_text.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/logo_quiz_level_37_answers.pdfIn PDF document text
    • http://jesowafifu.rf.gd/business_turnaround_strategy_template_ppt.pdfIn PDF document text
    • http://wexoxanifew.epizy.com/14647055727.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_off0000cf0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0A 5456 bytes
SHA-256: 0588fdee6173c97d86aea683d45fe81f5d10d2655559b337b95ad63021d04869
font_01_sfnt_off0000e1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AC 10316 bytes
SHA-256: 1c0040c9df71013f43facb492fea8b1b696787f7ec23953abcc8fa842ea20c4b

Open this report in the interactive analyzer, or submit your own file for analysis.