Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcb1ec4228ba7d1a…

MALICIOUS

PDF

45.0 KB Created: 2021-05-15 02:46:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2baab5a7d73d3764da9fb0b0367a8245 SHA-1: 30272aec1e16e9c6efd429b39d2eaf26857d0872 SHA-256: dcb1ec4228ba7d1a0d0ddbca4debc2785331b90c271b5247c1d4a7304a98bca2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to the URL https://netcdn.xyz/app/431946152/how-to-get-free-robux-website-game-hack. This URL is associated with a high-severity heuristic for game hack redirects. The document body also contains multiple other URLs that likely serve similar malicious purposes. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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-get-free-robux-website-game-hack PDF link annotation
    • http://musestravel.com/images/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://musestravel.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/robux-today_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://musestravel.com/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/oprewards-login_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://musestravel.com/images/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a25.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A25 24656 bytes
SHA-256: 60fbebe85f09ebcbb7432df0ee01806e81f3b4c6f222d8bf4affde56d947f94b
font_01_sfnt_off0000829a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x829A 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off00008c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C35 18600 bytes
SHA-256: ac0d4502235c23175446595a7cf8e817a77a023a22f0524dfc344b6b051bbd29

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