Malicious PDF — malware analysis report

Static analysis result for SHA-256 98082149b3654814…

MALICIOUS

PDF

64.2 KB Created: 2021-01-20 09:26:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 579245a6869d3bf12fafc7b18218036e SHA-1: 13730629c8adaa1a1414772c5245aaae89b32acd SHA-256: 98082149b3654814addad0a576f86fd630bc83106324fbff0042740838f1ee20
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'lds gospel essentials manual', aiming to trick users into visiting the malicious URL.

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://leonvi.ru/123?utm_term=lds+gospel+essentials+manual PDF link annotation
    • https://cdn.sqhk.co/tinupolureg/fOmfjak/28158449926.pdfIn PDF document text
    • https://site-1228360.mozfiles.com/files/1228360/sundara_kanda_naa_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/firokizita/jgvibQf/73196998462.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/iQJgcht/spacebar_counter_free.pdfIn PDF document text
    • https://site-1177759.mozfiles.com/files/1177759/zanuxenukibe.pdfIn PDF document text
    • https://site-1178749.mozfiles.com/files/1178749/2647001869.pdfIn PDF document text
    • https://site-1178429.mozfiles.com/files/1178429/gogitebixutupazudidadaso.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/XgiL3N4/printable_road_trip_games_for_toddlers.pdfIn PDF document text
    • https://site-1179000.mozfiles.com/files/1179000/58627020491.pdfIn PDF document text
    • https://cdn.sqhk.co/xetilibul/hghAjaa/67864204119.pdfIn PDF document text
    • https://cdn.sqhk.co/wireriduwude/X3jchgT/weight_steel_plate_calculator_metric.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/dicScje/34077966816.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/Hjjhges/download_moto_racing_3d_for_pc.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/bifamomove/bujinar.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_off0000be7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE7B 5124 bytes
SHA-256: 906b38d90e8b016de978fbdf17c489124141b1e22635481e5e148d1652d7de65
font_01_sfnt_off0000cfdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFDB 10484 bytes
SHA-256: 2e9b0d0ddf91aabd80915166abbb3868c744ce5d79b4339951b2aca29bd7c955