Malicious PDF — malware analysis report

Static analysis result for SHA-256 d42e55f054985397…

MALICIOUS

PDF

71.9 KB Created: 2021-02-18 14:12:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 89d3767a97a58b39a1cbe196b1a46e7f SHA-1: a70d2798e730650cd9fa252af974dbd13a74877c SHA-256: d42e55f054985397d844ab7e8a20c8fdaa3dc591f45c946654a7be8dca69f4ac
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious URL, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to game release dates, aiming to trick the user into clicking the malicious link.

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://jottigo.ru/wix?keyword=ark+new+map+valguero+release+date+xbox PDF link annotation
    • http://radanukodufam.22web.org/column_paper_template.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/aiiibjb/collage_maker_for_windows_7_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/ketofebem/3hhcieY/fleer_92_baseball_trading_cards_value.pdfIn PDF document text
    • http://fegikiji.iblogger.org/65987298403.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/tjefjgs/htc_phone_weather_app.pdfIn PDF document text
    • http://gozatelaji.22web.org/free_loft_bed_plans.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/6F5ifr2/fexalema.pdfIn PDF document text
    • http://gifozizonumili.iblogger.org/41721473071.pdfIn PDF document text
    • https://cdn.sqhk.co/silakozafi/7giCic7/digiromania_plati_online.pdfIn PDF document text
    • https://cdn.sqhk.co/tikugubobo/ajfighg/66135875793.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/kabisebax/reading_comprehension_worksheet_for_grade_12.pdfIn PDF document text
    • http://fibubaxuvuvixik.epizy.com/jump_zone_trampoline_assembly_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/74117441856.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/62290784618.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/83645120985.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/allseasonsuniforms_coupon_code.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/76501540214.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/xedoremavaxerilefomi.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/dotowigefopufif.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/spotify_mod_for_android.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_off0000db20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB20 5692 bytes
SHA-256: 75d8355c8dff268fbfc751d71c3ce218e8dfc9dded92eaac47b973ca8df97925
font_01_sfnt_off0000ee7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7E 10336 bytes
SHA-256: c6b6dc41715066a5ec95ffd62216c8de5504a6b680d07fa753a20a0ec4ee0f5b