Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33970fe43681801…

MALICIOUS

PDF

42.9 KB Created: 2021-05-14 19:03:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f5a1a0936ef305c73b87db64823e2788 SHA-1: 571f278145b47b0334f0a57c37115f50dcfcd196 SHA-256: d33970fe43681801b8ce101068b4452bfa2939d16c86df077d0fe0d9893fed07
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are structured as SEO-optimized links pointing to game-related cheats and currency. The document body also contains a primary URL that leads to a page about free Robux. This indicates a likely phishing or scam attempt, potentially leading to malware download or credential harvesting. No scripts were extracted, but the PDF structure and embedded URIs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-you-get-free-robux-on-roblox-game-hack
    • http://facingachild.org/images/free-spins-on-coin-master-game_GM406889139.pdf
    • http://facingachild.org/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdf
    • http://facingachild.org/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://facingachild.org/images/coin-master-hack-100-working_GM406889139.pdf
    • http://facingachild.org/images/coin-master-online-free-spin_GM406889139.pdf
    • http://facingachild.org/images/coin-master-15-free-spin-link-today_GM406889139.pdf
    • http://facingachild.org/images/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdf
    • http://facingachild.org/images/minecraft-cheat-client_GM479516143.pdf
    • http://facingachild.org/images/minecraft-dungeons-download-free_GM479516143.pdf
    • http://facingachild.org/images/free-robux-no-verification-2021-android_GM431946152.pdf
    • http://facingachild.org/images/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://facingachild.org/images/free-coin-master-spins_GM406889139.pdf
    • http://facingachild.org/images/free-robux-without-verify_GM431946152.pdf
    • http://facingachild.org/images/oprewards-robux_GM431946152.pdf
    • http://facingachild.org/images/get-free-spins-coin-master-2021_GM406889139.pdf
    • http://facingachild.org/images/free-coin-app_GM406889139.pdf
    • http://facingachild.org/images/hackear-coin-master-espaol_GM406889139.pdf
    • http://facingachild.org/images/how-do-you-get-free-robux-without-paying_GM431946152.pdf
    • http://facingachild.org/images/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • http://facingachild.org/images/coin-master-game-free-spin-download_GM406889139.pdf
    • https://collectrobux.co
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004977.bin
03b634aa597030308aab0d776c62e69b1a703999491e118d0dbdbb4a17f4be44
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4977 25424 bytes
font_01_sfnt_off00008438.bin
1a1edbb4620230d43f84097700922ea11c75fa5ad69815b80eb1b16329c7dce0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8438 18688 bytes