Malicious PDF — malware analysis report

Static analysis result for SHA-256 37deafbc8c2bfe12…

MALICIOUS

PDF

81.9 KB Created: 2021-03-27 11:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 231a046bc9b5751631f4aead0116cf4e SHA-1: 23c5bda9f0bbc4fb11bb42f7f7e9b8fb1e08c46a SHA-256: 37deafbc8c2bfe12ced6b6f8ad7206b32657004f592c1f711710370ff5e804ea
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL associated with malware distribution, disguised as a movie download link. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://bologen.ru/strik?utm_term=fifty+shades+of+grey+3+full+movie+download+filmywap PDF link annotation
    • https://cdn.sqhk.co/nilesatu/he2iebp/apple_gift_card_cashstar.pdfIn PDF document text
    • https://cdn.sqhk.co/rasirise/hiK1vgi/goxenutidalasefisizo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451555/normal_60450b5e37351.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451220/normal_6033a104bc3c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374682/normal_5fd77478178fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374978/normal_6045104dc6756.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/hchcAhb/block_tank_wars_3_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/soziwariru/Xieih0L/vupizedurufodapeta.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402246/normal_604edd655fc09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469836/normal_603f2b1b57994.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425913/normal_60230fea25bf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5fd16f01ef871.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380080/normal_6018c52794bf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_603efdac65292.pdfIn PDF document text
    • https://cdn.sqhk.co/zaniridut/8GgegQU/star_wars_rise_of_skywalker_emperor_palpatine_theme.pdfIn PDF document text
    • https://cdn.sqhk.co/dazibewibu/HiiFih7/larewunezodo.pdfIn PDF document text
    • https://cdn.sqhk.co/mozejipakas/jb986ig/61494483848.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/Jjhcihp/32902665171.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wiwifubobu.epizy.com/cognitive_behavioural_therapy_workbook_for_dummies.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/zonavogigumomunob.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/libibebunapi.pdfIn PDF document text
    • http://parozetu.rf.gd/nojogedufabiwovagolupalat.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/28795460714.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A8 5708 bytes
SHA-256: 57b6a3bf453fed730a50f18dae5a135d374b139367293d5e790ba2b6d3d89486
font_01_sfnt_off00010609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10609 11100 bytes
SHA-256: c86bb393d739dd0e6e3c10f7d3f4461dc10e6f0ba4aef754d2493c2b7e2e1eb3
font_02_sfnt_off00012bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BC7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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