Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f2e04763e0c57d5…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 17:08:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 072023ceea38c9baab2478b53b2dad22 SHA-1: 52e1e9223d7b97a4a59d8714a9d747b88ddecc12 SHA-256: 1f2e04763e0c57d5a4863fd56abeb3e837022ea73f4d7df8e109530272a69f33
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to game hacking and free in-game currency, as indicated by the document body and high-severity heuristics. It contains multiple embedded URLs, with a primary focus on directing users to external sites like 'http://netcdn.tw/app/431946152/how-to-hack-people-in-roblox-game-hack', which likely serve as landing pages for malicious downloads or scams. No scripts were extracted, but the PDF structure and embedded URIs suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/431946152/how-to-hack-people-in-roblox-game-hack PDF link annotation
    • http://akbidprimahusada.ac.id/elibrary//repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/seraph-roblox-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/esp-hack-roblox-script_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/r5oblox-how-to-get-robux-useing-cheat-engine_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/dll-for-roblox-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/can-tiktok-free-view-bot_GM835599320.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-free-robux-generator-apphack-online_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/rbl-robux-gives-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F67 22268 bytes
SHA-256: abfdba3e35a718d21d163f6205ef714f982a596875cb20b1ff83b30a05dde803
font_01_sfnt_off000060f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F8 19148 bytes
SHA-256: 210a0ca19f3049b49adbbe174b6d1900b8bba92406d0cafcc0c0c398ed60933b

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