Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe31781b6801fdc9…

MALICIOUS

PDF

74.1 KB Created: 2021-02-18 15:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 8855470f717b57a59f08e55068409b26 SHA-1: 570268a6ebcae127912a8ab2b9c5e75d256f1e6f SHA-256: fe31781b6801fdc900c2acf18cbc6397f62b407aeee6ade5783e1cbaf6a29e73
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body, though heavily obfuscated, appears to contain metadata related to the lure, suggesting an attempt to trick users into visiting the malicious URL for fraudulent purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/123?utm_term=garmin+nuvi+50lm+gps+navigator PDF link annotation
    • http://zefunafujazi.22web.org/61888948694.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490364/normal_5fcb080d37a73.pdfIn PDF document text
    • http://menegatuje.iblogger.org/facebook_marketplace_scams_report.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/2bjgjgi/purixatotodenagova.pdfIn PDF document text
    • https://cdn.sqhk.co/dufolatik/iiiahcE/biwomudumilibijotot.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwaseja/ggc4Jgi/94374538333.pdfIn PDF document text
    • http://raxuzasi.iblogger.org/kajumozitabopawixika.pdfIn PDF document text
    • http://javoreruja.iblogger.org/warranty_vs_performance_guarantee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413712/normal_60296b3c842b4.pdfIn PDF document text
    • http://jezugelevafebir.22web.org/1758897112.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xufizup.rf.gd/32427637677.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/kafoderokup.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/ru_application_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/manuale_istorie_pentru_academia_de_politie.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/rewumuzo.pdfIn PDF document text
    • http://rojaxenutu.rf.gd/wogejakaralubogofup.pdfIn PDF document text
    • http://vumavezes.epizy.com/identification_card_sample_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/old_town_road_clarinet_sheet_music_solo.pdfIn PDF document text
    • http://zepurudevivo.rf.gd/87416345422.pdfIn PDF document text
    • http://livufuxe.epizy.com/best_smart_watch_under_5000_in_india.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_off0000e414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE414 5496 bytes
SHA-256: 8e3a30df49ba4051a30d4047a949198e6d3f25780fe3fa8afbda704a5b5177dd
font_01_sfnt_off0000f6b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B8 10644 bytes
SHA-256: bc13b6f953f5a40048a47d4bbe8abc521355887045f3bd38c946aa0f10584e41

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