Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd049403625322f8…

MALICIOUS

PDF

42.7 KB Created: 2021-06-14 01:34:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 11b9b9c5bbbb5380c8a1fa9d5bc80708 SHA-1: edcdb7d242ed52e39e19c84bb0ff65fedf5bbebb SHA-256: fd049403625322f89d2a70b58a04d6ea6754c1b84f51a5dd109e2fb70620b1b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a lure related to game hacks and executors. The primary link, http://netcdn.co/app/431946152/free-level-7-executor-for-roblox-2021-game-hack, is identified as a redirector to a malicious website. The ML classifier also flagged this PDF as malicious with high confidence. The document's purpose appears to be tricking users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.co/app/431946152/free-level-7-executor-for-roblox-2021-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/comment-hacker-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/freerobux-co_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/games-that-give-you-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-on-roblox-2021-android_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-things-february-2021-roblox_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_off000049ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49AB 24772 bytes
SHA-256: 905e3ebb002feeefab92cc84ce969d0c054c7450ca19a846ac73f0a012f009a2
font_01_sfnt_off00008273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8273 18948 bytes
SHA-256: c44f5279928e5208520703276cae0b93a37453c7601f41cb2d8a3b2c2f18857d

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