Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2d036aa209a4ae…

MALICIOUS

PDF

42.9 KB Created: 2021-05-12 10:32:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1b419d268798071bc387fe3b64627773 SHA-1: d7cdfd24c76e8d079f3c08d68258a64e3ebf73b8 SHA-256: dc2d036aa209a4ae63918dd47a6ecc7f767927d6703c8371f3893879dacbfebb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple external links, with a primary URL pointing to a 'game hack' lure. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests a social engineering tactic to trick users into visiting malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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 https://netcdn.xyz/app/431946152/how-do-u-hack-roblox-game-hack PDF link annotation
    • http://eurocomes.com/images/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-earn_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
stream_003_off0000470d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x470D 26748 bytes
SHA-256: 26e3821f28401b80a3660e9be5251e59f4a39e758517e10decf11a229cabc188
font_01_sfnt_off00008409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8409 18700 bytes
SHA-256: 24715886d6b8435fb8a33d258b866203ee2974827a311e3ab6dcb36e4a196b9f

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