Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b032b7a3765b379…

MALICIOUS

PDF

37.9 KB Created: 2021-07-06 08:03:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6673c14c591936760ac6dfa4e7fbb6c1 SHA-1: 9d2cdfc9dc6a53360c2e264555d1a98d7f99d224 SHA-256: 6b032b7a3765b379024b9a4f72ffdf2511976fe73c8d8b8ce4e131c4b30f883c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to game-related "hacks" and exploits, suggesting a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and an IP literal in a URI further supports this assessment. While no scripts were directly extracted, the document's structure and content indicate it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.tw/app/406889139/hack-coin-master-without-root-game-hack
    • http://202.56.165.220/digilab/repository/robux-app_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/minecraft-net-download-free_GM479516143.pdf
    • http://202.56.165.220/digilab/repository/how-do-you-get-free-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-money-in-the-plaza-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-robux-hack-download-ios_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-real-working_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/codes-to-get-free-robux_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-access-the-studio-of-a-roblox-game-hack_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-no-verification_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/robux-hack-tool-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/hack-for-robux-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-hack-tool-no-survey_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/google-coin-master-free-spins_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/gametest-roblox-com-free-obc_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-tricks-and-hacks_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/ninja-animation-package-roblox-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-gold-cards-in-coin-master_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/roblox-download_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-the-scary-elevator-red-key-locations-cheat-sheet_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003303.bin
525a38a8d6069c8fc599ea6c63c0a3031b792b438d0413ff7d37f9bec5a86ec0
pdf-font-stream PDF embedded font (sfnt) at offset 0x3303 23072 bytes
font_01_sfnt_off000066d9.bin
c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D9 2896 bytes
font_02_sfnt_off000070be.bin
7412962c38736f31792a490788021e885b84a7fc2ab52d8639a2d80332116790
pdf-font-stream PDF embedded font (sfnt) at offset 0x70BE 18508 bytes