Malicious PDF — malware analysis report

Static analysis result for SHA-256 428cb5d0d6c7800c…

MALICIOUS

PDF

76.4 KB Created: 2021-04-03 14:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fb03911b80f3c26dbd8d3b55ca70f0fb SHA-1: 9c6fe117f58007af6b9b9c5da76aba6adbbfaa33 SHA-256: 428cb5d0d6c7800c7d292de43ae0da54e3f38eaf5494091fb36f04c9fe04f335
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 0.9997

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://seumenha.ru/strik?utm_term=cnn+latest+news+2021 PDF link annotation
    • http://freshmind.net/1850529534111tx7.pdfIn PDF document text
    • https://bedapidipofawif.weebly.com/uploads/1/3/2/7/132711979/sofamasupuno.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxeromewime/Ljat9gf/numolafopul.pdfIn PDF document text
    • http://lordtrans.ru/645942833894x061.pdfIn PDF document text
    • http://store50off.info/honda_black_max_mower_wont_starta7zih.pdfIn PDF document text
    • http://all-system7.work/is_there_a_just_dance_2020_for_wiihls2o.pdfIn PDF document text
    • https://xowavexinoj.weebly.com/uploads/1/3/1/4/131408618/sajewe.pdfIn PDF document text
    • http://about-fb-support.com/hansel_and_gretel_story_kid_version1g2mw.pdfIn PDF document text
    • http://zanartcc.net/72952737478sowqd.pdfIn PDF document text
    • https://detosujedeke.weebly.com/uploads/1/3/4/3/134371576/vikopiderixonir.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/ighchg9/zabanegakuxenutomi.pdfIn PDF document text
    • https://cdn.sqhk.co/fugolamudara/jkigjfQ/weburugoj.pdfIn PDF document text
    • http://iqecoportal.ru/nokunoviwepixenuj3ixh9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zizujiton.rf.gd/chordate_zoology_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/how_to_repair_washing_machine_dryer.pdfIn PDF document text
    • http://kenefokugoxetu.rf.gd/business_card_butterfly_design_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/suwisirikarebojemuvefu.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/sony_android_tv_l_g.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/ruruja.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/nusokusuxopetu.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_off0000ef61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF61 4908 bytes
SHA-256: 7f4b9c8b1e47b5aa4e1d31f4403134b6f75b8c761497addeb9601dda12196c77
font_01_sfnt_off00010038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10038 10856 bytes
SHA-256: 985e795b3e56465cbe5dda889953cc9503dfd566c5e002a8d9bef06e1f1fb612

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