Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afb7a6ef71e798f…

MALICIOUS

PDF

45.6 KB Created: 2021-05-12 06:54:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bc2dfe3a82d5cc6bed9c1ac7075e82c6 SHA-1: ceb465c2a117eb980801318f6391e49ce87f6aff SHA-256: 0afb7a6ef71e798f1f41e075f3398558c5c56d4bd30ed25653d0c520386c183d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and generators, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. Although no scripts were explicitly extracted, the document's structure and embedded links suggest it is designed to redirect users to potentially harmful content or initiate downloads.

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 https://netcdn.xyz/app/431946152/how-to-change-your-username-in-roblox-for-free-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-get-free-food-in-coin-master_GM406889139.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_off00004c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C28 28664 bytes
SHA-256: 54338b081aad8e19ad035d6c574567f0ae77ddedf8731c753922d2a8d75f54d5
font_01_sfnt_off00008ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA5 19540 bytes
SHA-256: 47934da0ee3f947cf015c12c60a39e8e7f45bd5e58593390266dea94dc2cb6c6

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