Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc59fc5b4827c9a…

MALICIOUS

PDF

124.9 KB Created: 2021-02-09 23:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 1d34c9dbff37f6a96a6ed323fb930094 SHA-1: b56e306534ce7ed639d988eef24f239ae07d29c5 SHA-256: 5cc59fc5b4827c9a5221c2e1ef39cdb5295eeb3bbc26a471c10b6706d1c75bf8
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. It contains an embedded URL that leads to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords related to the embedded URL, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/123?utm_term=teacup+yorkies+for+sale+in+danville+illinois PDF link annotation
    • https://cdn.sqhk.co/papowepu/3WjiCw0/twisted_x_steel_toe_boots_atwoods.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/EOVjhjb/nupifexisazuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/lewovazu/gDZhhhj/crossy_road_your_unblocked_games.pdfIn PDF document text
    • http://ergors.space/whatsapp_emoji_games_with_answersraoxc.pdfIn PDF document text
    • http://all-host.site/anaconda_2_full_movie_movies_counteriuapl.pdfIn PDF document text
    • http://navalny.design/72231283978ez9lw.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/gurowozenupifi/69032100955.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/50388545225.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/naxesejadut.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/atkins_vanilla_shake_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/preparation_of_aspirin_lab_report_conclusion.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/administrador_de_dispositivo_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/beamng_map_editor.pdfIn PDF document text
    • http://mezomiwewelebe.epizy.com/gukakegi.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/xusubu.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_off0001abfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABFA 5324 bytes
SHA-256: f83cd90421f8cc87081174d2eab70529907e7c543745c32dc19b366e669899dd
font_01_sfnt_off0001be36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE36 11804 bytes
SHA-256: 8391bd102e68a72e7120dd71158b580e83fcb527642bcb069c3e589e28042283

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