Malicious PDF — malware analysis report

Static analysis result for SHA-256 e65fab38d4e57127…

MALICIOUS

PDF

72.8 KB Created: 2021-03-24 12:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 96e2d2b684bbf6b32c3cda22056836c2 SHA-1: e957bb68440152113235475128bfa4ef76de6afc SHA-256: e65fab38d4e571279e564e719805507192e29b5a435064aedf63fa4887b4fbee
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://druttle.ru/123?utm_term=avatar+free++3d+model PDF link annotation
    • http://wopotirofi.22web.org/which_engineering_has_highest_salary_in_nigeria.pdfIn PDF document text
    • https://cdn.sqhk.co/potiribuwuf/mmjgjhr/air_traffic_watcher.pdfIn PDF document text
    • https://cdn.sqhk.co/sezivalaw/bNlQgjQ/pupeniper.pdfIn PDF document text
    • https://cdn.sqhk.co/gefizorabubi/g4ZCLtL/monument_valley_2_levels_how_many.pdfIn PDF document text
    • http://vixegoxufareka.getenjoyment.net/how_to_start_fl_studio_20.pdfIn PDF document text
    • http://betomererag.iblogger.org/fluke_multimeter_77_iii_manual.pdfIn PDF document text
    • http://rebituzugofebo.22web.org/vyapam_jail_prahari_admit_card.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/taguxif/kexuxobizipog.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/julupumaripolit.pdfIn PDF document text
    • http://ratobewiwigu.atwebpages.com/19537183751.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/98253778038.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/injective_surjective_bijective.pdfIn PDF document text
    • http://keximidurowu.rf.gd/padman_movie_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/american_pie_sheet_music_free.pdfIn PDF document text
    • http://furipurisebete.onlinewebshop.net/31592243303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/879c527b-3f96-423d-b12e-ba12265322c6/gaxesilekigemikusisir.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/preguntas_y_respuestas_de_el_libro_el_caballero_dela_armadura_oxidada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbd3c011-65c3-4813-af1b-2357ab9c3f70/rojedugofeluroda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d80b6f-862b-40e6-849f-2b6c2315c481/psalm_23_nkjv.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/daubert_tracker_case_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/96471555036.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_off0000e2de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DE 5088 bytes
SHA-256: eb7a61557d6a1968c958158a1c4d88ce150828ef87bf10027c81da499f3db4f5
font_01_sfnt_off0000f423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF423 9940 bytes
SHA-256: 8d0b1ba6357008d0e2735c956a12fe3c54fb0bf2c17212a2d042df2974f53bd1

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