Malicious PDF — malware analysis report

Static analysis result for SHA-256 16d2fc11180cfc5c…

MALICIOUS

PDF

45.5 KB Created: 2021-06-02 22:30:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d1edde4cd51f433d8ec28efc0ae24c2f SHA-1: 4c5bee8d118676242ccc42c84475f050b71ffa68 SHA-256: 16d2fc11180cfc5cdac5e3c2e252b996e9f98b8f736bf665baea70e1e1d08750
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to external URLs. The presence of multiple links to sites offering 'free Robux' or game cheats suggests a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/roblox-cheat-engine-walthrough-game-hack PDF link annotation
    • https://reggieslockandkey.com/images/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/buy-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/cpbildco-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-website_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/robux-matchcomfree-robux_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_004_off00004fb2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FB2 26128 bytes
SHA-256: 621be84c67d8afe76de13e2bdb91d16e3a004c0292ce5b712097a45de6c17268
font_01_sfnt_off00008ce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE0 19028 bytes
SHA-256: 9e70ca7ae2d3461fd467e7a70822b034fd3bc9be5c84a5f08ede1af279d851c7

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