Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afe3c60d391945e…

MALICIOUS

PDF

83.7 KB Created: 2021-02-28 08:12:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 296bf129aeff6a761b57a41cbad0eb6c SHA-1: d82674e3bfaf5f64fd38abc73d2b56c1da634bf0 SHA-256: 4afe3c60d391945e0118da5e6d9393e2524a14ef2ecdeacd229ace54a29dd50d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, likely to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic confirms the presence of an external link. The document body, though heavily obfuscated, contains text related to the URL's query.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/award?keyword=who+all+dies+in+percy+jackson PDF link annotation
    • https://cdn.sqhk.co/kogewole/iRn5ido/60613919211.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/jqpjfgd/carson_wentz_baby_news.pdfIn PDF document text
    • https://cdn.sqhk.co/mivoteloxip/egcAhhy/white_triple_bunk_beds_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/K0bjbp9/72519361969.pdfIn PDF document text
    • http://mafonofolifeda.22web.org/12943599172.pdfIn PDF document text
    • https://cdn.sqhk.co/rotefuver/4s767gc/34021074639.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/22937911136.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://lawupoxag.epizy.com/welakojazevidome.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/chocolate_malayalam_full_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/standard_deviation_excel_worksheet.pdfIn PDF document text
    • http://poxoner.rf.gd/zuvidijetiwejokize.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/adobe_illustrator_bahasa_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/cessna_172_skyhawk_checklist.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/blur_photo_background_auto_editor_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/life_skills_worksheets_for_elementary_students.pdfIn PDF document text
    • http://segigeserife.epizy.com/ocean_of_apk_wwe_2k19.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/95224442057.pdfIn PDF document text
    • http://rokabimokow.rf.gd/apex_launcher_frp_bypass_apk.pdfIn PDF document text
    • http://paruwegugu.rf.gd/figurative_language_worksheet_1_answer_sheet.pdfIn PDF document text
    • http://tinegomawula.epizy.com/briggs_and_stratton_1227md_snowblower_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/jolene_miley_cyrus_piano_sheet_music.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_off0000fea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA4 5124 bytes
SHA-256: 8c88376b74b3c6cdffb35c3bb4f8457d91edbe7ecb054742c9929e30e2c44a9c
font_01_sfnt_off00011007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11007 10420 bytes
SHA-256: 5dd92f274387541732943b8ac217501e56bc2ce0a1b3d87c5dee260068fd0c53
font_02_sfnt_off000133b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133B1 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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