Malicious PDF — malware analysis report

Static analysis result for SHA-256 99009097d7b5d319…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 06:12:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 31a689ba50be5ae3dacb386b6ecb6b11 SHA-1: 0b5f8eb0e08afcd0869aa4dbb113b421d999997d SHA-256: 99009097d7b5d3196fdf80f9bfe14af0c90f7984b9d1d8bf7b570920351e10bd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as game-related resources or hacks. The primary lure, 'free-adopt-me-flying-potion-roblox-game-hack', strongly suggests a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.

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.co/app/431946152/free-adopt-me-flying-potion-roblox-game-hack PDF link annotation
    • https://www.fishboat.hr/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/glitch-hacks-free-roblox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-fly-hack-2021_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-dungeon-quest-noob-vs-pro-vs-hacker_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/how-to-get-a-free-gear-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/kazoks-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/free-robux-claim-gg_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_off00002ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA0 23024 bytes
SHA-256: 2683e6175f51ea8affe5574ba1af10a1cc1fda7e5e4f24654279d709e6aa5321
font_01_sfnt_off000062bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BF 19752 bytes
SHA-256: 3df9ce085116784b0d9b274f20db59f161c9104fa386d6f223d4047085b0eb47

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