Malicious PDF — malware analysis report

Static analysis result for SHA-256 b558899d0998a0f9…

MALICIOUS

PDF

76.2 KB Created: 2021-03-13 14:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a8e5cba2eef929d63718213f9cc8d354 SHA-1: 3a233a0b64b9196c7f1476eb89b8bdf567e0c7a9 SHA-256: b558899d0998a0f93cbbe8ee2e701e91854ea1a2aac1bdbeb5d5909fbab87721
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://jumiwimov.ru/strik?utm_term=the+game+awards+2020+fortnite+announcement PDF link annotation
    • http://mapotilij.mygamesonline.org/saregir.pdfIn PDF document text
    • http://duwosolutanuz.mypressonline.com/harry_potter_and_the_half_blood_prince_game_trailer.pdfIn PDF document text
    • http://tokepubex.getenjoyment.net/7350831847.pdfIn PDF document text
    • http://bopodimo.iblogger.org/21181458321.pdfIn PDF document text
    • http://tareworig.mywebcommunity.org/child_of_god_written_in_hebrew.pdfIn PDF document text
    • http://sunugukumota.getenjoyment.net/bavifavofoxareguxolebo.pdfIn PDF document text
    • http://viwavidif.getenjoyment.net/35691559345.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafoxatuw.epizy.com/21836019794.pdfIn PDF document text
    • http://tavixemurivadol.rf.gd/38601107801.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/22540030387.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/bubble_shooter_full_pc_game.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/tibegigukunotubufaluno.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/24806483940.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/epson_artisan_725.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/96508500401.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/zifujobefesibi.pdfIn PDF document text
    • http://fanalejowegop.atwebpages.com/fejaguvevizukoku.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/zizos.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/xapufipazenokuk.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/avon_skin_so_soft_dry_oil_spray_for_mosquitoes.pdfIn PDF document text
    • http://tikimiwuwal.myartsonline.com/wendler_531.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_off0000e988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE988 5720 bytes
SHA-256: 8b35cc000aa14bdfff21f926d0c7f5d5452757f38d4bf4d9a56c50551a5f3a0a
font_01_sfnt_off0000fce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE2 11324 bytes
SHA-256: 33a18dd0b80919ad5f279f7088d2da771ce4b3db62cd39ee4550a0ec566c048f

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