Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae80b028a568ffd…

MALICIOUS

PDF

76.7 KB Created: 2021-02-24 11:16:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 940854b4b49aa2c2099917d71dac2155 SHA-1: 0866d313699bdd12673b3f000084ffb359426588 SHA-256: 0ae80b028a568ffd0a8ad6482f2d109a732eaf0868b9963e3603acb2abdc3a83
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 0.9998

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://jacksth.ru/123?utm_term=spring+framework+version+in+spring+boot PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444096/normal_5ff7718221f97.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/CicMnC0/wivupotujenamenewegev.pdfIn PDF document text
    • https://cdn.sqhk.co/bedogipaxog/eoTqRjh/xomikunobusijalibenifewa.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/avjfOji/12008183220.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/z1ibiiE/battle_of_rome_war_simulator.pdfIn PDF document text
    • http://healthbeauty24.online/convertible_note_term_sheet_explainedfd783.pdfIn PDF document text
    • https://cdn.sqhk.co/nepelusir/fYicgjp/great_business_ideas_to_start_in_2020.pdfIn PDF document text
    • http://sewonmedix.ru/how_to_thread_a_bobbin_kenmore_mini_ultracj453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_6013689ab0961.pdfIn PDF document text
    • http://ilmahli.com/kirajafegeporixa2m11.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/fibesezati/97843916288.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/aggiornamento_android_7._0.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/free_fillable_jewelry_appraisal_template.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/21606795157.pdfIn PDF document text
    • http://saweridam.epizy.com/olentangy_berlin_high_school_football_schedule_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/87664739088.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_off0000e93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93C 5648 bytes
SHA-256: 5fd698c96e5c562e732736523575359037a778456b18f4c3f0c4ac17bffaffa9
font_01_sfnt_off0000fc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC77 12180 bytes
SHA-256: 11ce56fa55163f4ee8e4e1256a514e9957e6b7d3cc6f3d889d43f18bc58f6fa9